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Digital Equipment applicationDEC 400xP Service Manual

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applicationDEC 400 x P
Service Guide
Order Number: EK-PS200-SV. A01
This document provides the information a service technician needs to
diagnose and repair the applicationDEC 400xP system. It also describes
the features and capabilities of the system.
Digital Equipment Corporation
Maynard, Massachusetts

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Summary of Contents for Digital Equipment applicationDEC 400xP

  • Page 1 400 x P Service Guide Order Number: EK-PS200-SV. A01 This document provides the information a service technician needs to diagnose and repair the applicationDEC 400xP system. It also describes the features and capabilities of the system. Digital Equipment Corporation Maynard, Massachusetts...
  • Page 2 First Printing, April 1992 The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document.
  • Page 3 — ZH1/618 • Datensichtgerät — System to be used with GS approved terminals • Bildschirmtreiberkarte Digital Equipment Corporation die Anforderungen an Bildschirmarbeitsplätze im Bürobereich. M A - 0 3 4 7 - 9 0 - C P G . D G...

  • Page 5: Table Of Contents

    Contents Preface ........... . . 1 System Overview Features .
  • Page 6 3 System Exerciser Overview ......... . . 3–1 Loading the System Exerciser .
  • Page 7 Replacing the CPU Module ......4–9 Replacing the Cache Card ......4–12 Replacing a SIMM .
  • Page 8 Configuring the System with EISA Option Modules ..5–20 Automatic Configuration ....... 5–20 Viewing Total System Configuration .
  • Page 9 Figures 1–1 System Cabinet, Front View ......1–3 1–2 System Cabinet, Rear View ......1–5 1–3 System Cabinet, Internal View .
  • Page 10 B–2 Tables applicationDEC 400xP Documentation Set ....1–1 Key for Figure 1–1 ....... . .
  • Page 11 5–11 5–3 ISA CFG Files for applicationDEC 400xP ISA Modules ..5–19 System Dimensions ....... .
  • Page 12 A–4 Schallemissionswerte — Vorläufige Werteangaben nach ISO 9296 und ISO 7779/DIN45635-19 ..... . A–2 A–5 System Power Requirements ......A–3 A–6 Computer Component Current and Power Requirements .

  • Page 13: Intended Audience

    Digital, refer to the applicationDEC 400xP User Guide. applicationDEC 400 x P Documentation Set This manual is part of a documentation set shipped with each applicationDEC 400xP system. The manuals in this set are listed in Table 1.
  • Page 14 User Guide EK-PS200-CG SCO UNIX Boot Process Notice EK-PS200-SB Part of the applicationDEC 400xP Installation Package (EK-PS200-IP) Conventions The following conventions are used in this manual: A key name, such as Enter, is shown enclosed to indicate that you Enter press a key on the keyboard.
  • Page 15 Caution A Caution indicates the presence of a hazard that might damage the hardware or currupt the software. Note A Note indicates important or explanatory information. xiii...

  • Page 17: System Overview

    System Overview The applicationDEC 400xP system is a versatile, industry standard computer system suitable for use in any of the following configurations: • Multiuser timesharing configurations running SCO UNIX System V • Network file server for Digital PATHWORKS, Novell NetWare, or Banyan Vines network operating systems •...

  • Page 18: System Cabinet

    The applicationDEC 400xP system supports: • SCO UNIX System V • Open Desktop • All industry standard SCO UNIX System V applications • MS–DOS • Banyan Vines • Novell NetWare 1.2 System Cabinet The system cabinet front panel is shown in Figure 1–1. Refer to the figure key in Table 1–1.

  • Page 19: System Cabinet, Front View

    Figure 1–1 System Cabinet, Front View M R - 0 0 3 8 - 9 2 D G System Overview 1–3...

  • Page 20: Rear Connectors

    1.2.1 Rear Connectors The system cabinet rear panel connectors are shown in Figure 1–2. Refer to the figure key in Table 1–2. For more information about the rear panel connectors, refer to Appendix C. Table 1–2 Key for Figure 1–2 Description Cabinet keylock Mouse connector —...

  • Page 21: System Cabinet, Rear View

    Figure 1–2 System Cabinet, Rear View M R - 0 0 3 9 - 9 2 D G System Overview 1–5...

  • Page 22: Internal Layout

    1.2.2 Internal Layout Figure 1–3 shows the internal layout of the system when the cabinet is opened. Refer to the figure key in Table 1–3. Table 1–3 Key for Figure 1–3 Description SCSI bus cable Power cables Front drive bays SCSI terminator Rear drive bays Diskette drive cable...

  • Page 23: System Cabinet, Internal View

    Figure 1–3 System Cabinet, Internal View M R - 0 5 6 5 - 9 1 D G System Overview 1–7...

  • Page 24: System Logic

    1.3 System Logic The applicationDEC 400xP system consists of three logic modules (see Figure 1–3): • System board • CPU module with optional plug-in cache (25 MHz and 33 MHz CPU) or attached cache (50 MHz CPU) • Optional memory expansion module 1.3.1 System Board...

  • Page 25: Option Module Slots

    1.3.1.1 Option Module Slots Eight extended industry standard architecture (EISA) option slots are available on the system board. The slots are industry standard architecture (ISA) compatible, so both EISA and ISA option modules can be installed. Six of the EISA slots are EISA master slots. EISA master modules must be installed in EISA master slots.
  • Page 26 Table 1–4 Key for Figure 1–4 Description Memory bank 0 Memory bank 1 Install first SIMM here Pin 1 of SIMM socket CPU module slot Memory module slot System setup jumpers SCSI/IDE disk drive activity LED cable connectors VGA setup jumpers IDE cable connector VGA 512K memory upgrade sockets Power connector (cable from power supply is factory installed)
  • Page 27 Figure 1–4 System Board M R - 0 0 3 3 - 9 2 D G System Overview 1–11...

  • Page 28: Memory Expansion Module

    1.3.3 Memory Expansion Module The memory expansion module: • Allows for increased memory beyond the 64 MB of memory that can be installed on the system board • Is installed in a slot on the system board • Contains 8 SIMM slots •...

  • Page 29: Keyboard

    1.6 Keyboard There are no service procedures for the keyboard other than replacement. 1.7 Mouse Service procedures for the mouse are limited to cleaning the mouse ball and tracking mechanism. Refer to the documentation supplied with the mouse. System Overview 1–13...

  • Page 31: System Troubleshooting

    Power-on self-test • Setup utility • Run-time error messages • Troubleshooting 2.2 Diagnostic Tools Table 2–1 lists the diagnostic tools required to service the applicationDEC 400xP system. Table 2–1 Diagnostic Tools Tool Part Number Description System Configuration Utility AK-PNHPA-CA This utility is used to Diskette (APPLICATIONDEC reconfigure the system when...

  • Page 32: Power-On Self-Test

    2.3 Power-On Self-Test Before the applicationDEC 400xP system can be used, all components must be initialized and tested, and the operating system must be loaded into memory. The BIOS that is stored in ROM controls this sequence of actions. A portion of the BIOS contains a power-on self-test (POST).

  • Page 33: Peripheral Hardware Tests

    2.3.2 Peripheral Hardware Tests The first peripheral hardware test procedure verifies that the system configuration data stored in CMOS RAM matches the hardware present. Then, the procedures continue to test and initialize other peripheral hardware. This testing includes memory on the system board and, if one is installed, the memory module.
  • Page 34 If POST does not detect any configuration errors, the system beeps once and displays a message similar to the following: PhoenixBIOS (TM) E486 Version x.xx.xx.xxx Copyright (c) 1985-1991 Phoenix Technologies Ltd. All Rights Reserved . . . 640K Base Memory 03072K Extended To continue press:.........SPACEBAR To configure system press:.......F1...

  • Page 35: Post And Boot Messages

    2.3.4 POST and Boot Messages POST displays messages to alert you to errors in hardware, software, and firmware. It also displays information about your system. During POST, the system board speaker beeps to alert you to specific POST steps. Two beeps signal the start of the time during which you can enter setup. Another beep signals the end of that time, and then a subsequent beep signals that a system boot has begun.
  • Page 36 Table 2–2 (Cont.) POST and Boot Messages POST No. Error Name Description Solution First 64 KB RAM parity Memory has failed. test failure Run SYSEX. Replace any failed SIMM. First 64 KB RAM Memory has failed. address line failure Run SYSEX. Replace any failed SIMM.
  • Page 37 Table 2–2 (Cont.) POST and Boot Messages POST No. Error Name Description Solution CMOS checksum test CMOS power failure The configuration information stored in CMOS does not agree with your hardware configuration. Run the SCU to verify configuration. Reboot system. Initialize EISA slots Initialize serial ports Initialize parallel ports...
  • Page 38 Table 2–2 (Cont.) POST and Boot Messages POST No. Error Name Description Solution Scan and initialize video Verify video configura- tion Initialize console redirection Display sign on message Timer tick interrupt test No timer tick interrupt Replace the system board. Shutdown test Shutdown failure Replace the system...
  • Page 39 Table 2–2 (Cont.) POST and Boot Messages POST No. Error Name Description Solution Interval timer 2 test Timer 2 failure The integrated system peripheral (ISP) chip on the system board might have failed. If the problem persists, replace the system board.
  • Page 40 Table 2–2 (Cont.) POST and Boot Messages POST No. Error Name Description Solution Initialize keyboard controller output port Initialize gate A20 Decreasing available This message memory immediately follows any memory error message informing you that memory modules are failing. Check that all SIMMs are installed correctly.
  • Page 41 Table 2–2 (Cont.) POST and Boot Messages POST No. Error Name Description Solution Memory data line See 290. failure at XXXX–0000 to XXXX–FFFF Test memory above 64 Memory parity failure at One of the SIMMs XXXX–0000 to XXXX– or associated FFFF circuitry has failed.
  • Page 42 Table 2–2 (Cont.) POST and Boot Messages POST No. Error Name Description Solution Diskette drive 0 failure Drive 0 has either failed or is missing. Verify the settings for drive 0 using the BIOS Setup Utility. Make sure drive 0 is present and the diskette is inserted properly.
  • Page 43 Table 2–2 (Cont.) POST and Boot Messages POST No. Error Name Description Solution Shadow ROMs Shadow of off-board The video controller video BIOS failed board might have failed. Check that it is installed correctly. Run the SCU. Also, see 700. Enable cache Internal cache test Cache failed.
  • Page 44 Table 2–2 (Cont.) POST and Boot Messages POST No. Error Name Description Solution ID mismatch error, (A) The board in slot X slot X is bad and returns a bad ID. (B) The board ID does not match the ID that the SCU expects for slot X.
  • Page 45 Table 2–2 (Cont.) POST and Boot Messages POST No. Error Name Description Solution Hard drive read failure The hard disk drive has failed. Check the system configuration and drive type by running the SCU. Check both ends of the controller’s cables, and reseat the hard disk controller board.

  • Page 46: Beep Codes

    Table 2–2 (Cont.) POST and Boot Messages POST No. Error Name Description Solution Not a bootable diskette The diskette in drive A is not formatted as a bootable diskette. Replace the diskette with a bootable diskette and try again. Boot Diskette read failure No diskette in drive A.
  • Page 47 Table 2–3 (Cont.) Beep Codes for Fatal Errors Beep Code Error Message Port 80h 1-3-3 1st 64 KB DRAM chip or data line failure 1-3-4 1st 64 KB DRAM odd/even logic failure 1-4-1 1st 64 KB DRAM address line failure 1-4-2 1st 64 KB DRAM parity test in-progress failure...

  • Page 48: Setup Utility

    Table 2–4 Beep Codes for Nonfatal Errors Beep Code Error Message Port 80h 3-3-4 Screen memory test failure 3-4-1 Screen initialization failure 3-4-2 Screen retrace test failure 2.4 Setup Utility The system BIOS also contains a setup utility that enables you to change configuration settings that are stored in CMOS RAM.

  • Page 49: Run-Time Error Messages

    2.5 Run-Time Error Messages Run-time error messages are displayed on the monitor if an error occurs after the system boots. Table 2–5 lists the run-time error messages by number. Table 2–5 Run-Time Error Messages POST No. Message Solution Software NMI Bus timeout NMI, slot X Unresolved bus timeout NMI See 985.
  • Page 50 5. Observe any POST messages. Refer to Section 2.3.4, POST and Boot Messages, take the appropriate steps to correct the problem, and then reset the computer. 6. Run the SCU and make sure the system is configured correctly for the installed hardware and software.
  • Page 51 Table 2–6 (Cont.) System Troubleshooting Problem Possible Cause Action IDE hard disk drive is Format the IDE hard disk drive or not properly formatted correctly partition the IDE hard disk or the requested drive using the supplied operating partition does not system software.
  • Page 52 Table 2–6 (Cont.) System Troubleshooting Problem Possible Cause Action System does not Drive ID incorrectly Make sure the drive ID is correctly set. boot from a target diskette drive Diskette drive not Run setup utility to enable diskette enabled drive. Diskette does not Insert diskette with correct start-up contain start-up files...

  • Page 53: Disk Drive Troubleshooting

    Table 2–7 Disk Drive Troubleshooting Problem Possible Cause Action IDE/SCSI hard Incorrect jumper Refer to the supplied kit installation disk drive cannot settings instructions. read or write information Loose or incorrectly Make sure all cables are correctly installed cables installed. IDE/SCSI hard Format and partition as required using disk drive is not...

  • Page 54: Monitor Troubleshooting

    Table 2–8 Monitor Troubleshooting Problem Possible Cause Action Monitor power Monitor is turned off Turn on the monitor. indicator is not on Power cord is not Connect the power cord to the system. connected No power at wall Use another outlet. outlet Power indicator is Replace monitor.

  • Page 55: System Exerciser

    (FRU) level. SYSEX tests each system unit simultaneously with peripheral and communication transfers to detect interactive errors. Note Version 4.0 or higher of the applicationDEC System Exerciser is required for use with the applicationDEC 400xP system. SYSEX verifies the following: • System motherboard logic •...

  • Page 56: Loading The System Exerciser

    • Digital hard disk drives: 209 MB disk drive (RZ24) 426 MB disk drive (RZ25) 665 MB disk drive (RZ56) 852 MB disk drive (RZ35) 1.0 GB disk drive (RZ57) 1.3 GB disk drive (RZ58) You can run the system exerciser two ways: •...

  • Page 57: Running The System Exerciser

    System Exerciser Rev 4.0 400xP 0000:00:00 applicationDEC System Exerciser Rev 4.0 03/01/92 applicationDEC 400xP Copyright (c) Digital Equipment Corporation, 1991, 1992. All Rights Reserved. Unpublished-rights reserved under the copyright laws of the United States. Verifying program loaded correctly System Configuration: Slot Type...
  • Page 58 Then you are prompted to select destructive (write/read) or nondestructive (read only) testing for each device: Test mode selection. Use keyboard to make selections. Space key selects write/read testing. ENTER key protects media. The screen should resemble the following display during and after test mode selections: BUS Configuration: Slot ID LUN...
  • Page 59 Scheduled tests: Test Name ==== ==== Memory Memory Retention Numeric Serial Line (COM1) Serial Line (COM2) Motherboard [Slot 0] 2 Parallel Port (LPT1) Console SCSI Disk 3:0:0 SCSI Disk 3:1:0 Floppy Disk 0:0 Floppy Disk 0:1 8x4 Mux [Slot 11] 2 Ethernet/2 (DE200) Type "HELP"...

  • Page 60: Loading Failure

    3.4 Loading Failure After you load SYSEX, one or two messages appear on the console monitor. If the only message is the following, loading was successful: Verifying program loaded correctly If the error report ‘‘Checksum error detected at load time’’ follows the above message, the loading failed.
  • Page 61 The following SYSEX error report shows that the loopback plug was found missing during external loopback testing of serial port 1 (COM1): applicationDEC System Exerciser Rev: 4.0 03/01/92 (400xP) Current time = 03/12/92 15:50:06 Elapsed time = 2:41:58 Test # 4 Serial Line (COM1) Subtest # 3...

  • Page 62: Test Descriptions

    3.6 Test Descriptions Table 3–1 describes the system exerciser tests. Table 3–1 System Exerciser Tests Name Description Memory Write/read main memory. Memory retention Memory refresh circuitry. Numeric CPU floating point. Motherboard System motherboard logic. Console Writes test patterns to the console for visual verification. Terminal multiplexer Internal/external data loopback and registers.

  • Page 63: Flags

    You can place SYSEX in the halt mode at any time by pressing . Because Ctrl/C no tests are running when SYSEX is in the halt mode, response to commands is immediate. When SYSEX is in the run mode and tests are running, the keys you press are echoed to the screen as they are typed, but the commands are not executed until the completion of the current test pass.

  • Page 64: Commands

    Use the flag command to change the status of a flag. For example, to set the long flag, enter the following: HLT> flag on long Enter If you boot the system, the SYSEX flags return to the default settings. 3.9 Commands Table 3–4 lists the system exerciser commands.

  • Page 65: Block

    Table 3–4 (Cont.) System Exerciser Commands Command Description L[og] Play back or delete previous error reports or write error reports to a DOS diskette. Q[uit] or Stop all tests and reboot the system. Ctrl/Alt/Delete R[un] Begin or resume testing (change from halt mode to run mode).

  • Page 66: Cache

    For example, to block test 1: RUN> block 1 Enter If you look at the test status, the display indicates that test 1 is blocked by placing the letter B next to the number of the test. To block test 1 and test 3, use either of the following: RUN>...

  • Page 67: Calculate Command Qualifiers

    Table 3–6 Calculate Command Qualifiers Command Description Cal[culate]/o Calculate using the octal radix. Cal[culate]/d Calculate using the decimal radix. Cal[culate]/h Calculate using the hexadecimal radix. Hexadecimal is the default radix. If you set the default radix to decimal or octal, the system immediately defaults back to hexadecimal when the calculation is finished.

  • Page 68: Configuration

    You can use the following functions with the calculate command: • Add ( + ) • Subtract ( - ) • Multiply ( * ) • Divide ( / ) • Exponentiation ( ^ ) The order of precedence is: •...

  • Page 69: Devices Command Formats

    For example, if you select destructive (write/read) testing for a disk that really should be write protected, then you can use this command to change to nondestructive (read only) testing for the disk. Or, if you set up a COM or LPT for external loopback testing and find that loopback plugs are not installed, then you can use the devices command to reconfigure the COM or LPT for internal loopback testing only.

  • Page 70: Display

    Table 3–9 Devices Command State Flags Device Flag(s) Description(s) Lpbk External loopback Disk Protect Data protect flag Ethernet Auto_census Automatic census every ‘‘time x’’ minutes Census Issue census command Int_lpbk Internal loopback Network Network testing Lpbk External loopback AClpbk, BDlpbk A->C and B->D loopback flags Enabled runs test as read only.

  • Page 71: Display Command Qualifiers

    Table 3–10 Display Command Qualifiers Command Display Mode D[isplay]/b Byte (default) D[isplay]/w Word D[isplay]/d Doubleword D[isplay]/a ASCII If you do not designate an address, the system defaults to the last address selected for display or to address 0 if no previous display command was executed.

  • Page 72: Examine

    3.9.8 Examine The examine command lets you analyze and modify data at a specified location in memory. Format: EXAMINE[/mode] [address] When data is displayed, the system cursor remains in place and waits for you to input new data. To modify the data at the current location, input the new data and then use the "...

  • Page 73: Help

    Format: GO[/n] [(instruction,write,access,task,forever) (byte,word dword) addr] The go command is an advanced feature of the system exerciser debugger and is reserved for use by Digital Equipment Corporation development personnel. Debug operations at the lowest hardware levels are extremely complex and can result in unexpected consequences.

  • Page 74: Log

    If you wish to rerun the IVP, you must reboot the system exerciser or type run to continue running SYSEX tests, but without the 15-minute (default time) timeout. 3.9.14 Log The log command lets you write error reports to a DOS diskette, play back error reports that have been logged, and remove reports from the log.
  • Page 75 To review an error report from the log, use the log play command and specify the entry number of the error. For example, to review entry 0 from the sample report in Table 3–13: RUN> log play 0 Enter You can specify one entry number to review a single error report or a range of entry numbers to review several error reports.

  • Page 76: Quit

    3.9.15 Quit You can use the quit command to end a test run and reboot the system. Format: QUIT You can also use the key sequence to duplicate the quit command. Ctrl/Alt/Delete 3.9.16 Run The run command lets you run SYSEX tests continuously. Format: RUN [test_time_in_minutes] To start or resume testing, enter run or r at the HLT>...

  • Page 77: Set Command State Variables

    Table 3–14 Set Command State Variables State Variable Value(s) Description Baud 2400 Baud rate of the line printer on the COM1 port. This variable 4800 is valid only if there is a printer available on the COM1 port. 9600 • Viewing or setting the baud variable is illegal if the startup ‘‘...

  • Page 78: Show

    3.9.18 Show The show command lets you examine the machine state. Table 3–15 describes the available machine states that you can examine. Format: SHOW [machine_state] Table 3–15 Show Command Machine States Machine State Description Breakpoints Active breakpoints Global descriptor table entries Interrupt descriptor table entries Physical Physical address of specified logical address...

  • Page 79: Time

    Table 3–16 lists the options for the status command. Table 3–16 Status Command Options Command Description St[atus] Display status of all tests. St[atus] COM[/n] Display status of COMM port(s) under test. St[atus] devices Display status of currently running devices. St[atus] Ethernet/n Display status of an Ethernet device.
  • Page 80 For example, to unblock test 1: RUN> unblock 1 Enter To unblock test 1 and test 3: RUN> unblock 1 3 Enter RUN> unblock 1,3 Enter To unblock test 1, test 2, and test 3: RUN> unblock 1-3 Enter If you use the unblock command without an argument, a list of all unblocked tests is displayed on the screen.

  • Page 81: Fru Removal And Replacement

    4.1 FRU Parts List Table 4–1 lists the available FRUs for the applicationDEC 400xP system. Many FRU replacement procedures require you to run the system configuration utility (SCU) to configure the system. For information on configuring the system with the SCU, refer to Chapter 5.
  • Page 82 Table 4–1 (Cont.) Field Replaceable Units Part Number Order Number Options International 102-key keyboard PCXAL-xx 19-32971-01 64 KB cache card (for DX25, DX33) PSWXM-AA 19-32971-02 128 KB cache card (for DX25, DX33) PSWXM-AB 512 KB video RAM kit PSWXM-BA 4 MB SIMM kit (2 x 2 MB, 80 ns) PS2XM-AA 8 MB SIMM kit (2 x 4 MB, 80 ns) PS2XM-AB...

  • Page 83: Required Tools

    SCSI internal cable assembly (includes 12-33816-01, PSXAZ-DA SCSI terminator) 21-32423-01 Real-time clock chip (Dallas Semiconductor DS1287) 4.2 Required Tools The following tools are required to service the applicationDEC 400xP system: • Phillips screwdriver • Flat-blade screwdriver • Antistatic wrist strap •...

  • Page 84: Before You Begin

    4.4 Before You Begin Before you open the system cabinet, shut the system down and remove power: Warning Risk of electrical shock. Failure to disconnect the source of power before opening the system can result in personal injury. Caution Do not touch any logic component unless you are grounded. Grounding can be established by wearing a grounded wrist strap or by touching an exposed metal part of the system chassis.

  • Page 85: Opening The System Cabinet

    4.5 Opening the System Cabinet This section describes how to open the applicationDEC 400xP system cabinet to gain access to the internal components. Refer to Figure 4–1 and Table 4–2. 4.5.1 Removing the Top Cover and Side Panels 1. Shut the system down and unplug the power cord (Section 4.4).

  • Page 86: System Cover And Side Panel Removal

    Figure 4–1 System Cover and Side Panel Removal MR-0191-91DG 4–6 FRU Removal and Replacement...

  • Page 87: Removing The Bezels

    Table 4–2 Key for Figure 4–1 Description Cabinet key Top cover Front locking tabs Left side panel Cover retaining screw Card cage cover Rear locking tabs 4.5.3 Removing the Bezels The front (upper and lower) and rear (upper and lower) bezels are removed the same way.

  • Page 88: Bezel Removal

    Figure 4–2 Bezel Removal M R - 0 0 2 4 - 9 2 D G Table 4–3 Key for Figure 4–2 Description Locking tab (1 of 4) Guide pin (1 of 2) 4–8 FRU Removal and Replacement...

  • Page 89: Replacing The Cpu Module

    4.6 Replacing the CPU Module The following steps describe the removal procedure for the CPU module. Refer to Figure 4–3 and Table 4–4 during the procedure. 1. Shut down the system and unplug the power cord (Section 4.4). 2. Remove the cabinet top cover, left side panel, and card cage cover using the procedures in Section 4.5.

  • Page 90: Cpu Module Removal

    Figure 4–3 CPU Module Removal M R - 0 0 0 2 - 9 2 D G Table 4–4 Key for Figure 4–3 Description Retaining bar CPU module 4–10 FRU Removal and Replacement...

  • Page 91: Cpu Module Layout

    Figure 4–4 CPU Module Layout 1 2 3 1 2 3 M R - 0 0 2 7 - 9 2 D G Table 4–5 Key for Figure 4–4 Description Cache socket Guide pin 25 MHz or 33 MHz CPU module 50 MHz CPU module FRU Removal and Replacement 4–11...

  • Page 92: Replacing The Cache Card

    Table 4–6 Cache Size Jumper Cache Size Jumper J3 Position 128 KB 1–2 64 KB 2–3 No cache installed Either position is okay. 4.7 Replacing the Cache Card The following steps describe the removal and replacement of the cache card. Refer to Figure 4–5 and Table 4–7 during the procedure.

  • Page 93: Cache Card Removal

    Figure 4–5 Cache Card Removal M R - 0 0 0 1 - 9 2 D G Table 4–7 Key for Figure 4–5 Description Guide pin FRU Removal and Replacement 4–13...

  • Page 94: Replacing A Simm

    4.8 Replacing a SIMM SIMMs are removed from their slots at oblique angles, as shown in Figure 4–6. Therefore, any SIMMs installed above a failed SIMM must be removed first: • On the system board, remove SIMMs in order from slots J0651, J0650, J0551, and J0550 (see Figure 4–7 and Table 4–8).

  • Page 95: Simm Removal

    Figure 4–6 SIMM Removal M R - 0 5 6 7 - 9 1 D G FRU Removal and Replacement 4–15...

  • Page 96: Simm Slots On The System Board

    Figure 4–7 SIMM Slots on the System Board J0651 J0650 J0551 J0550 M R - 0 0 2 8 - 9 2 D G Table 4–8 Key for Figure 4–7 Description Pin 1 of SIMM slot 4–16 FRU Removal and Replacement...

  • Page 97: Simm Slots On The Memory Module

    Figure 4–8 SIMM Slots on the Memory Module M R - 0 0 2 9 - 9 2 D G Table 4–9 Key for Figure 4–8 Description Pin 1 of SIMM slot Memory bank jumpers (4), one for each bank FRU Removal and Replacement 4–17...

  • Page 98: Replacing The Memory Expansion Module

    4.9 Replacing the Memory Expansion Module The following steps describe the removal procedure for the memory expansion module. Refer to Figure 4–9 and Table 4–11 during the procedure. 1. Shut down the system and unplug the power cord (Section 4.4). 2.

  • Page 99: Memory Expansion Module Removal

    Figure 4–9 Memory Expansion Module Removal M R - 0 0 0 3 - 9 2 D G Table 4–11 Key for Figure 4–9 Description Retaining bar Memory expansion module FRU Removal and Replacement 4–19...

  • Page 100: Replacing Option Modules

    4.10 Replacing Option Modules The following steps describe the removal procedure for option modules. Refer to Figure 4–10 and Table 4–12 during the procedure. 1. Shut down the system and unplug the power cord (Section 4.4). 2. Remove the cabinet top cover, left side panel, and card cage cover using the procedure in Section 4.5.

  • Page 101: Option Module Removal

    Figure 4–10 Option Module Removal M R - 0 0 4 1 - 9 2 D G Table 4–12 Key for Figure 4–10 Description I/O connector System board Module guide Option module FRU Removal and Replacement 4–21...

  • Page 102: Replacing The System Board

    4.11 Replacing the System Board The following steps describe the removal procedure for the system board. Refer to Figure 4–11 and Table 4–13 during the procedure. 1. Shut down the system and unplug the power cord (Section 4.4). 2. Remove the cabinet top cover, left side panel, and card cage cover using the procedure in Section 4.5.
  • Page 103 10. Carefully pull the internal cables up into the upper storage bay area. 11. Remove the retaining screws that secure the board to the chassis. 12. Loosen the keyslot screws that secure the board to the chassis. 13. Pull the board to the right until the keyslot screw heads clear the keyholes in the board.

  • Page 104: System Board Removal

    Figure 4–11 System Board Removal M R - 0 0 1 6 - 9 2 D G 4–24 FRU Removal and Replacement...
  • Page 105 Table 4–13 Key for Figure 4–11 Description Memory bank 0 Memory bank 1 Pin 1 of SIMM slot CPU module slot Memory module slot System setup jumpers SCSI/IDE disk drive activity LED cable connectors (J0190, J0490, J0491) VGA setup jumpers IDE cable connector (J0821) VGA 512 KB memory upgrade sockets (U0730, U0731, U0732, U0830) Power connectors (J0840,...

  • Page 106: Replacing The Real-Time Clock Chip

    4.12 Replacing the Real-Time Clock Chip This section describes how to replace and dispose of the real-time clock chip on the system board. A lithium battery inside the real-time clock chip provides power for the CMOS RAM which holds system configuration information. Caution The real-time clock chip contains a lithium battery.
  • Page 107 8. Use a flat-blade screwdriver to lift the chip from its socket. 9. Dispose of the chip as follows: a. Clip all exposed chip leads. Do not short any leads together. b. Wrap the chip in insulating tape to prevent accidental shorting. Pack the chip so it cannot be crushed.

  • Page 108: Replacing The Rx23 3.5-Inch Diskette Drive

    4.13 Replacing the RX23 3.5-Inch Diskette Drive The following steps describe the removal procedure for the RX23 diskette drive. Refer to Figures 4–12 and 4–13 and Tables 4–14 and 4–15 during the procedure. 1. Remove the top cover, side panels, and upper front bezel using the procedure in Section 4.5.

  • Page 109: Rx23 3.5-Inch Diskette Drive Removal (Part 1 Of 2)

    Figure 4–12 RX23 3.5-Inch Diskette Drive Removal (Part 1 of 2) M R - 0 0 2 2 - 9 2 D G Table 4–14 Key for Figure 4–12 Description Power cable Data cable RX23 drive Front panel wire assembly FRU Removal and Replacement 4–29...

  • Page 110: Rx23 3.5-Inch Diskette Drive Removal (Part 2 Of 2)

    Figure 4–13 RX23 3.5-Inch Diskette Drive Removal (Part 2 of 2) M R - 0 0 2 1 - 9 2 D G 4–30 FRU Removal and Replacement...

  • Page 111: Replacing An Option Drive

    Table 4–15 Key for Figure 4–13 Description RX23 drive Adapter plate Mounting bracket 4.14 Replacing an Option Drive The following steps describe the removal procedure for the disk and tape drive options installed in the front and rear bays of the system cabinet. Refer to Figure 4–14 and Table 4–16 during the procedure.

  • Page 112: Option Drive Installation Data

    Figure 4–14 Option Drive Removal M R - 0 1 8 0 - 9 1 D G Table 4–16 Key for Figure 4–14 Description Option drive (full-height shown) Full-height drive mounting holes Mounting screw (1 of 4) Mounting bracket 4.14.1 Option Drive Installation Data Table 4–17 contains installation data on the optional drives supplied by Digital.

  • Page 113: Bay Option Installation Data

    Table 4–17 Bay Option Installation Data Description Model No. Jumpers Screws Connect to: 525 MB QIC tape TZK10-AA Figure 4–16 Metric SCSI bus cable drive 209 MB HH disk RZ24-S Figure 4–17 SCSI bus cable drive 426 MB HH disk RZ25-S Figure 4–18 SCSI bus cable...

  • Page 114: Id Jumper Code

    Figure 4–15 ID Jumper Code ID 0 ID 4 ID 1 ID 5 ID 2 ID 6 ID 3 ID 7 MR−0531−91RAGS Figures 4–16 through 4–24 show the jumper locations and configurations for the bay options. See also the corresponding figure keys in Tables 4–18 through 4–26.

  • Page 115: Tzk10-Aa Id Jumper Locations

    Figure 4–16 TZK10-AA ID Jumper Locations M R - 0 5 5 1 - 9 1 D G Table 4–18 Key for Figure 4–16 Operating Jumper Position Description Automatic density. Enables automatic density when removed. SCSI ID bit 2 SCSI ID bit 1 SCSI ID bit 0 Terminator power source.

  • Page 116: Rz24-S Jumper Locations

    Figure 4–17 RZ24-S Jumper Locations M R - 0 1 4 1 - 9 1 D G 4–36 FRU Removal and Replacement...
  • Page 117 Table 4–19 Key for Figure 4–17 Description SCSI ID jumpers. E1, E2, and E3 = binary bits 0, 1, and 2, respectively. ID 0 shown. SCSI data connector Power connector Parity jumper FRU Removal and Replacement 4–37...

  • Page 118: Rz25-S Jumper Locations

    Figure 4–18 RZ25-S Jumper Locations A B C F G H 2 1 0 M R - 0 0 4 0 - 9 2 D G 4–38 FRU Removal and Replacement...
  • Page 119 Table 4–20 Key for Figure 4–18 Operating Jumper Position Description Factory use only. Spin-up on power when removed. Spin-up on command when installed. Spin-up delay (valid only if jumper B is removed). Drive spins up after n-second delay when installed. (n = 16 x SCSI ID setting.) Drive spins up immediately when removed.

  • Page 120: Rz56-E/Rz57-E Id Jumper Locations

    Figure 4–19 RZ56-E/RZ57-E ID Jumper Locations C C C M R - 0 1 3 8 - 9 1 D G Table 4–21 Key for Figure 4–19 Description Power connector Data connector SCSI ID jumpers. ID 3 shown. 4–40 FRU Removal and Replacement...

  • Page 121: Rz57-E Id And Configuration Jumpers Location

    Figure 4–20 RZ57-E ID and Configuration Jumpers Location R N 9 M R - 0 1 4 7 - 9 1 D G Table 4–22 Key for Figure 4–20 Description Spin-up jumper. Remove jumper for spin-up on power. SCSI ID jumpers. ID 4 shown. Data connector Power connector FRU Removal and Replacement 4–41...

  • Page 122: Rz35-E Jumper Locations

    Figure 4–21 RZ35-E Jumper Locations 0 1 2 A B C D E F G M R - 0 0 4 3 - 9 2 D G 4–42 FRU Removal and Replacement...
  • Page 123 Table 4–23 Key for Figure 4–21 Operating Jumper Position Description 0, 1, 2 — SCSI ID jumpers. ID 3 shown. None FLT_SINK signal (lower pin [7]) — for connection to a remote fault LED cable. BSY_SINK signal (lower pin [9]) — for connection to a remote busy LED cable.

  • Page 124: Rz58-E Jumper Locations

    Figure 4–22 RZ58-E Jumper Locations 2 1 0 M R - 0 0 3 4 - 9 2 D G 4–44 FRU Removal and Replacement...
  • Page 125 Table 4–24 Key for Figure 4–22 Description Spin-up jumper. Install jumper for spin-up on power. SCSI ID jumpers. ID 1 shown. Data connector Power connector FRU Removal and Replacement 4–45...
  • Page 126 Figure 4–23 105 MB IDE Drive Jumper Locations 1,2 DM 3,4 SP 5,6 DS M R - 0 1 9 3 - 9 1 D G 4–46 FRU Removal and Replacement...
  • Page 127 Table 4–25 Key for Figure 4–23 Description Power connector Data connector ID address jumpers Setting for drive in single IDE drive system Setting for primary drive in dual IDE drive system Setting for secondary drive in dual IDE drive system FRU Removal and Replacement 4–47...

  • Page 128: Rx33-As Jumper Locations

    Figure 4–24 RX33-AS Jumper Locations M R - 0 1 4 2 - 9 1 D G 4–48 FRU Removal and Replacement...

  • Page 129: Replacing The Speaker

    Table 4–26 Key for Figure 4–24 Description Power connector Grounding jumper Density jumper Data connector 4.15 Replacing the Speaker The following steps describe the removal procedure for the speaker. Refer to Figure 4–25 and Table 4–27 during the procedure. 1. Remove the top cover and side panel using the procedure in Section 4.5. 2.

  • Page 130: Speaker Removal

    Figure 4–25 Speaker Removal M R - 0 0 2 6 - 9 2 D G 4–50 FRU Removal and Replacement...

  • Page 131: Replacing The Front Panel Wire Assembly

    Table 4–27 Key for Figure 4–25 Description Speaker Speaker connector tab (1 of 2) Retaining spring 4.16 Replacing the Front Panel Wire Assembly The following steps describe the removal procedure for the front panel wire assembly. Refer to Figure 4–26 and Table 4–28 during the procedure. 1.

  • Page 132: Front Panel Wire Assembly Removal

    Figure 4–26 Front Panel Wire Assembly Removal M R - 0 0 3 5 - 9 2 D G 4–52 FRU Removal and Replacement...

  • Page 133: Replacing A Fan

    Table 4–28 Key for Figure 4–26 Description Front panel Speaker wires Push-on ground terminal System board connector 4.17 Replacing a Fan The following steps describe the removal procedure for a fan. Refer to Figure 4–27 during the procedure. 1. Remove the top cover and left side panel using the procedure in Section 4.5. 2.

  • Page 134: Fan Removal

    Figure 4–27 Fan Removal M R - 0 0 2 5 - 9 2 D G 4–54 FRU Removal and Replacement...

  • Page 135: Replacing The Power Supply

    Table 4–29 Key for Figure 4–27 Description Power connector (1 of 2) Fan (1 of 2) 4.18 Replacing the Power Supply The following steps describe the removal procedure for the power supply. Refer to Figures 4–28 and 4–29 and Tables 4–30 and 4–31 during the procedure. 1.

  • Page 136: Power Supply Cable Removal

    Figure 4–28 Power Supply Cable Removal M R - 0 0 2 3 - 9 2 D G Table 4–30 Key for Figure 4–28 Description 15-pin power harness connector +5 V power bus wires (red) 5 V RTN power bus wires (black) DC switch wire assembly protective cover DC switch wire assembly connector 4–56 FRU Removal and Replacement...

  • Page 137: Power Supply Removal

    Figure 4–29 Power Supply Removal M R - 0 0 2 0 - 9 2 D G Table 4–31 Key for Figure 4–29 Description Retaining screw (1 of 2) Power supply Chassis guide rails FRU Removal and Replacement 4–57...

  • Page 138: Replacing The Dc Switch

    4.19 Replacing the DC Switch The following steps describe the removal procedure for the DC power switch. Refer to Figure 4–30 and Table 4–32 during the procedure. 1. Shut down the system and unplug the power cord (Section 4.4). 2. Remove the top cover, side panels, and lower front bezel using the procedure in Section 4.5.

  • Page 139: Dc Switch Removal

    Figure 4–30 DC Switch Removal M R - 0 0 3 6 - 9 2 D G Table 4–32 Key for Figure 4–30 Description DC switch Push-on terminals FRU Removal and Replacement 4–59...

  • Page 141: System Configuration

    System Configuration This chapter provides detailed information on how to use the EISA system configuration utility (SCU). 5.1 EISA Architecture The EISA bus provides an open architecture for installation of any EISA or ISA compliant option module. Specific parameters must be configured according to the option modules installed and how the system is configured.

  • Page 142: Diskettes Provided

    SCU diskette is write-enabled. 5.2.1 Diskettes Provided Two configuration diskettes are provided for use with the applicationDEC 400xP system, the SCU diskette and the library diskette. The SCU diskette contains both the SCU program and the system configuration files. When the SCU prompts you for the "System Configuration Diskette,"...

  • Page 143: When To Use The Scu

    5.2.2 When to Use the SCU Features controlled by the SCU include the following: • Select a specific keyboard type • Copy the System Configuration Diskette • Learn about configuring the computer • Set the computer date and time • Configure the computer •...

  • Page 144: Scu Main Menu Options (Part 1 Of 2)

    Figure 5–1 SCU Main Menu Options (Part 1 of 2) Welcome Screen Main Menu Set Time Exit Utility Set Date Learn about configuring Copy system your computer. configuration diskette. M R - 0 7 3 7 - 9 1 D G 5–4 System Configuration...

  • Page 145: Scu Main Menu Options (Part 2 Of 2)

    Figure 5–2 SCU Main Menu Options (Part 2 of 2) Welcome Screen Main Menu Access Password Utility Set power-on password. Activate/deactivate network password. Set keyboard password. Lock keyboard. Return to main menu. Maintain system Configure computer. configuration diskette. Read important EISA configuration information. Create a backup SCI file.

  • Page 146: How To Use The Scu

    5.2.4 How to Use the SCU Table 5–1 lists the keyboard function keys used to access the SCU, scroll through the menu screens, and select specific menu items. Table 5–1 SCU Keyboard Function Keys Keyboard Key Function Moves the cursor down one menu item. "...

  • Page 147: Configuring The Computer System

    5.3 Configuring the Computer System This section describes how to configure the system using the SCU. If this is the first time using the SCU, it is recommended that you follow the procedures in the order given. If this is a subsequent session, refer to the appropriate sections to update the system configuration.
  • Page 148 6. Using the "Copy System Configuration Diskette" option, make a backup copy of the original System Configuration Diskette. Two copy options are available: a. Copy diskette from diskette drive A to diskette drive A b. Copy diskette from drive A to diskette drive B Note Always copy from diskette drive A to diskette drive A.

  • Page 149: Access Password Utility

    13. To write the configuration data shown in the SCU to the system’s memory, select the "Exit from this utility" option. Note Do not install the SCU or any of its utilities on a hard disk drive. Running the SCU or any of its utilities from a hard disk drive might cause memory conflicts between the SCU and application software.

  • Page 150: Configure Computer

    To delete the power-on password, type the following string at the password prompt: Current password/ 5.3.2 Configure Computer If you are accessing this menu item for the first time, it is recommended that you follow the menu items listed below in order. If this is a subsequent session, refer to the appropriate menu item to update the system configuration.

  • Page 151: View Or Edit Details

    5.3.5 View or Edit Details This menu item allows you to view or edit the configuration of the system board, all EISA expansion modules, and certain ISA expansion modules. Note that the number of options depends on the configuration. Table 5–2 lists the configuration (setup) options for the system board. The options are listed in the order in which they appear in the SCU.
  • Page 152 Table 5–2 (Cont.) System Board Setup Options SCU Setup Field Settings Comments Diskette A Disabled Disables the selected diskette Diskette B drive. 3.5-inch 720 KB, Selects size and density of 3.5- 1.44 MB, or 2.88 MB inch diskette drives; standard densities 3.5-inch RX23 diskette drive set to 1.44 MB.
  • Page 153 Table 5–2 (Cont.) System Board Setup Options SCU Setup Field Settings Comments Parallel port Disabled Disables any desired on-board printer port. Enabled Enables bi-directional mode Base address 378h (PS/2 compatible) or compatible compatible mode (PC AT Centronics Base address 378h compatible).
  • Page 154 Table 5–2 (Cont.) System Board Setup Options SCU Setup Field Settings Comments Video type Not installed Allows you to specify the type EGA/VGA and mode of the video adapter CGA 40 columns that has been installed. CGA 80 columns Shadow off-board video Enabled Enables shadowing of off-board BIOS...
  • Page 155 Table 5–2 (Cont.) System Board Setup Options SCU Setup Field Settings Comments On-board mouse control Enabled Enables the on-board PS/2 mouse port. IRQ = 12. Disabled Disables the on-board PS/2 mouse port. Speaker control Enabled Turns the speaker on. Disabled Turns the speaker off.

  • Page 156: System Board Extended Memory

    5.3.5.1 System Board Extended Memory This function indicates the amount of extended memory (memory addressable beyond 1 MB) resident on the system board and on an optional memory expansion module (if installed). The amount of extended memory is automatically detected and cannot be modified using the SCU. Note Extended memory installed on EISA or ISA boards is not included in the quantity of extended memory indicated.

  • Page 157: Hard Drive 1

    5.3.5.5 Hard Drive 1 This option must be configured to determine drive-specific parameters. Choose from types 1 through 47. If hard drive 1 is not installed, then select "Disabled." User-definable types 2, 3, 48, and 49 require you to enter specific parameters (cylinders, heads, precompensation, landing zone, and sectors).

  • Page 158: Save And Exit

    5.3.7 Save and Exit This menu item allows you to save all changes and exit from the "Configure computer" menu. Note that when you exit, the system boots and all changes take effect immediately. When you exit from the SCU, all of the SCU changes are written to NVRAM. All new configuration settings take place upon a soft reboot of the system, except for video features.
  • Page 159 7. Use the arrow keys to select the slot in which the ISA module is installed. 8. Press . The ISA CFG file is now installed in the slot you selected. Enter Table 5–3 ISA CFG Files for applicationDEC 400 x P ISA Modules ISA Module ISA CFG File on System Configuration Diskette Adaptec 1540B...

  • Page 160: Configuring The System With Eisa Option Modules

    5.5 Configuring the System with EISA Option Modules EISA options are shipped with an EISA CFG file. This EISA CFG file must be installed on the system configuration diskette to enable the SCU to recognize all of the features selectable on the EISA module. The SCU can automatically configure the module using the available resources.

  • Page 161: Viewing Total System Configuration

    In manual verification mode, the SCU will not identify resource conflicts until you select the "Verify" option during the "View or edit details" menu. The "Verify" option does not appear unless you are in manual verification mode. Automatic configuration can be disabled for individual modules. By "locking" a board, you prevent the SCU from automatically changing the module’s resources, or suggesting a change.

  • Page 162: Library Diskette

    Note ISA CFG files contained on the Library Diskette are submitted to the EISA consortium by individual vendors. Digital Equipment Corporation has not qualified or tested any of the files on the library diskette and these files are provided as is.

  • Page 163: Installing More Than One Terminal Multiplexer

    To use the advanced SCU feature: 1. If the system has more than 16 MB of memory, you must inform SCO UNIX that the 15 MB to 16 MB memory area is not for system use. To do this, you must edit the /etc/default/boot file. Search for the following string: DEFBOOTSTR=hd(40)unix Change it to read:...
  • Page 164 3. Use the rotary switches on each module to set the address. (For example, set the H switch to F and the L switch to A for FA0000h, and set the H switch to F and the L switch to B for FB0000h.) 5–24 System Configuration...

  • Page 165: A System Specifications

    Power supply and input power requirements • Expansion slot current limitations • System component current requirements A.2 System Specifications Tables A–1 through A–4 list the applicationDEC 400xP system dimensions, and the environmental and acoustic specifications. Table A–1 System Dimensions Dimension Specification Width, top 23.0 cm (9 in)

  • Page 166: Environmental Specifications

    Table A–4 Schallemissionswerte — Vorläufige Werteangaben nach ISO 9296 und ISO 7779/DIN45635-19 Schalleistungspegal Schalldruckpegel, L , dB(A) , B(A) W Ad Bediener Position Zuschauerpositionen Leerlauf (2RZ25) Betrieb (2RZ25) Aktuelle Werte für spezielle Ausrüstungsstufen sind über die Digital Equipment Vertretungen erhältlich. A–2 System Specifications...

  • Page 167: Power Supply And Input Power Requirements

    A.3 Power Supply and Input Power Requirements The power supply provides four dc voltages: +12 Vdc, –12 Vdc, +5 Vdc, and –5 Vdc. These voltages are used by the various components within the system. Table A–5 lists the power requirements. Table A–5 System Power Requirements Parameter Specification...

  • Page 168: System Component Current Requirements

    A.5 System Component Current Requirements The system has a 350 W power supply. Table A–6 specifies the nominal current requirements for typical computer components. Table A–6 Computer Component Current and Power Requirements Total Power Assembly +5 Vdc +12 Vdc -12 Vdc (without surge) System board (32 MB 6.0 A...

  • Page 169: B System Board Jumpers

    System Board Jumpers B.1 Introduction Jumper pins allow you to set specific system parameters. They are set by changing the pin location of jumper blocks. A jumper block is a small plastic- encased conductor (shorting plug) that slips over the pins. To change a jumper setting, remove the jumper from its current location with your fingers.

  • Page 170: Location Of System Board Jumpers

    Figure B–1 Location of System Board Jumpers E0722 E0721 E0720 E0392 E0391 E0390 E0292 E0291 E0290 E0191 J0190 M R - 0 0 1 4 - 9 2 D G B–2 System Board Jumpers...

  • Page 171: System Board Jumper Settings

    Table B–1 System Board Jumper Settings Board Designation 1–2 jumper 2–3 jumper FLASH E0191 FLASH Normal BIOS boot block Update BIOS boot block E0721 F-P Flash write enable Flash read only FLOPPY E0291 FLOPPY Diskette write-protected Diskette read/write enabled KEYBOARD E0292 NVRAM Retain configuration memory Clear configuration memory...

  • Page 173: C Interface Connectors

    Interface Connectors C.1 Introduction This appendix provides information about the external connectors on the applicationDEC 400xP system. C.2 External System Connectors This section lists all external computer connectors located at the rear of the system cabinet. The system cabinet rear panel connectors are shown in Figure 1–2.

  • Page 174: Serial Port Connectors

    Table C–1 Parallel Printer Connector Pinout DB25 Pin Signal Function STB-R Strobe PRTD0 Printer data bit 0 PRTD1 Printer data bit 1 PRTD2 Printer data bit 2 PRTD3 Printer data bit 3 PRTD4 Printer data bit 4 PRTD5 Printer data bit 5 PRTD6 Printer data bit 6 PRTD7...

  • Page 175: Keyboard And Mouse Connectors

    Table C–2 Serial Port Connector Pinout DB9 Pin Signal Function Data carrier detect Receive data Transmit data Data terminal ready Ground Data set ready Request to send Clear to send Ring indicator C.2.3 Keyboard and Mouse Connectors The keyboard and mouse connectors consist of two 6-pin mini-DIN connectors. The connector closest to the system board is the keyboard connector;...

  • Page 177: D Device Mapping

    Device Mapping Tables D–1 through D–5 list the computer system’s memory, I/O address, interrupt, and DMA maps. Resources used by the system board are shown in Table D–1. Resources used by option modules are not shown. Use the SCU to view total system resources.

  • Page 178: Memory Map, Typical Configuration

    Table D–2 Memory Map, Typical Configuration Address Range (Hex) Function Size Shadow Cache 0010 0000–01FF FFFF Extended memory 63 MB 000F 0000–000F FFFF System BIOS 64 KB 000E 8000–000E FFFF Reserved system resources 32 KB 000E 0000–000E 7FFF On-board video BIOS 32 KB extension 000D 0000–000D FFFF...
  • Page 179 Table D–3 (Cont.) I/O Address Map Range (Hex) Function 0078 BIOS timer 0080–008F ISP DMA 0092 System control port 00A0–00A1 ISP interrupt 00C0–00DE ISP DMA 00F0 Reset numeric error 01F0–01F7 IDE controller 0278–027B Parallel 2 02E8–02EF Serial 4 02F8–02FF Serial 2 0378–037F Parallel 2 03B0–03BB...

  • Page 180: Interrupt Map

    Table D–3 (Cont.) I/O Address Map Range (Hex) Function 0C84 Baseboard enable 0C85–0CFF Baseboard configuration Table D–4 Interrupt Map Interrupt Interrupt Priority Controller Number Interrupt Source IRQ0 System timer IRQ1 Keyboard controller 3–10 IRQ2 Interrupt controller 2 IRQ8 Real-time clock IRQ9 Available for EISA options IRQ10...

  • Page 181: Dma Map

    Table D–5 DMA Map Channel Controller Function Refresh Not used Diskette controller Not used Not used Not used Not used Device Mapping D–5...

  • Page 183: E Isa Option Configuration Files

    ISA Option Configuration Files Table E–1 is a list of the ISA CFG files on the SCU library diskette supplied with the applicationDEC 400xP system. Table E–1 ISA Option Configuration Files Company Description CFG File Category 3Com Corporation Etherlink 3C500B, ASM 34-0780...
  • Page 184 Table E–1 (Cont.) ISA Option Configuration Files Company Description CFG File Category Arnet Modular SMARTPORT Card ISAAE02 SMARTPORT 16 Card ISAAE03 SMARTPORT Card ISAAE01 AST Research 3270/COAX II Rev. X4 ISA8200 5251/11 Enhanced Plus ISA8201 Rampage 286 ISA8203 RAMvantage ISA8204 SixPackPlus, Version A ISA8202 AT&T...
  • Page 185 Table E–1 (Cont.) ISA Option Configuration Files Company Description CFG File Category BlueLynx 3270 Remote ISAC302 BlueLynx 5250 ISAC301 BlueLynx 5251-12 ISAC300 BlueLynx Enhanced 5251-11 ISAC303 Boca Research, Inc. Bocaram/AT Plus ISABC00 I/O Master AT ISABC01 Capital Equipment PC 488 IEEE Printer Controller ISAC500 Corporation Chase Research...
  • Page 186 Table E–1 (Cont.) ISA Option Configuration Files Company Description CFG File Category IRMA2 3279 Graphics adapter ISA8508 IRMA2 adapter ISA8500 IRMA3 Convertible adapter ISA8503 Smart Alec 5250 ISA8505 DEC (Digital DEPCA EtherLink adapter, Rev D1 ISA8B00 Equipment Corp.) DEPCA EtherLink adapter, Rev E, F ISA8B01 DigiBoard DigiBoard Com/8s...
  • Page 187 Table E–1 (Cont.) ISA Option Configuration Files Company Description CFG File Category G/Token Ring 8-bit ISA9402 G/Token Ring AT ISA9403 Genoa Systems QIC-02 Tape Controller ISA9F07 Corp. Super VGA, 16 bit ISA9F00 SuperEGA HiRes+ ISA9F03 SuperSpectrum Model 4640 ISA9F05 SuperSpectrum Model 4650 ISA9F04 SuperVGA ISA9F02...
  • Page 188 Table E–1 (Cont.) ISA Option Configuration Files Company Description CFG File Category Hughes Lan 4140 Ethernet Board ISAD700 Systems 6130 Broadband Network Card ISAD701 6140 Token Ring Network Board ISAD702 Advanced 3278/79 adapter ISA8303 Enhanced 5250 Emulator ISA8300 Enhanced 5250 Emulator, Rev B ISA8301 Enhanced Graphic adapter ISA830C...
  • Page 189 Table E–1 (Cont.) ISA Option Configuration Files Company Description CFG File Category Visual Edge printing enhancement ISA9207 system Iomega Corporation Bernoulli II Combo Adapter Board ISAB702 Bernoulli PC2/50, PC2B/50 Boards ISAB701 Bernoulli PC3B/50 Board ISAB700 Konan TNT-1050 Caching Disk Controller ISACB00 LSE Electronics Platinum VGA 16 card...
  • Page 190 Table E–1 (Cont.) ISA Option Configuration Files Company Description CFG File Category Novell Coax adapter 3270 connection ISA8700 COAX Graphics, Rev. A ISA8701 NE1000 Ethernet adapter ISA8711 NE2000 Ethernet adapter ISA8712 RX-Net, Rev B,C,D network interface ISA8713 RX-Net, Rev E,F,G network interface ISA8714 Twinax 5250 ISA8702...
  • Page 191 Table E–1 (Cont.) ISA Option Configuration Files Company Description CFG File Category PXB-721 Parallel Expansion ISABE05 QS-100M 4 Channel Asynchronous ISABE02 SmartLynx Multiport Adapter ISABE08 WSB-10 Waveform Synthesizer ISABE07 Quadram QuadEGA+ ISA9100 QUADMEG-AT ISA9102 Quadram+ w/IO ISA9103 QuadVGA Video adapter ISA9101 Rabbit Software RB14 X.25 Adapter...
  • Page 192 Table E–1 (Cont.) ISA Option Configuration Files Company Description CFG File Category Street Electronics ECHO PC+ Speech Synthesizer ISAC800 Corporation Sun Micro Systems TOPS Flashcard ISAAD00 Tecmar EGA Master 480/800 ISA8804 Maestro AT ISA8805 QIC PC36 Tape Controller TEC8001 QIC60 Host adapter TEC8000 QT Host Adapter TEC8002...
  • Page 193 Table E–1 (Cont.) ISA Option Configuration Files Company Description CFG File Category Vermont Micro Cobra VMI0211 Systems Cobra Plus VMI0E01 Image Manager 1024 VMI0201 Image Manager 640 VMI0601 Page Manager 100 ISAA000 Verticom, Inc. M16/M256E ISA9A00 MX16/AT & MX256/AT ISA9A01 Video Seven FastWrite VGA Video adapter ISA9802...

  • Page 195: Index

    Index CPU module, 1–9 Bezel removal, 4–7 DC switch BIOS, 2–2 removal, 4–58 shadow, 5–16 Devices command Block command system exerciser, 3–14 system exerciser, 3–11 Disk activity LED, 1–2 Disk drive troubleshooting, 2–22 to 2–23 Diskette removal caution, 4–4 Cache, 1–9 Display command Cache card system exerciser, 3–16...
  • Page 196 Flags (cont’d) Jumpers, system board, 1–9 system exerciser, 3–9 Flags command system exerciser, 3–18 Front panel wire assembly Keyboard removal, 4–51 function keys, 5–6 FRU parts, 4–1 Keylock, 1–2 Full-height drives, 1–12 mechanical, 4–5 Go command Library diskette, 5–22 system exerciser, 3–19 Loading message system exerciser, 3–6 Log command...
  • Page 197 Running tests system exerciser, 3–8 RX23 3.5-inch diskette drive Parallel port, 1–4, 5–17 removal, 4–28 Parts list, 4–1 Password, 5–9 changing password, 5–10 set power-on password, 5–10 SCO UNIX System V operating system, 4–4 POST, 2–2 SCSI adapter, 1–12 messages, 2–20 SCSI bus, 1–12 Power SCSI bus ID, 4–33...
  • Page 198 System exerciser (cont’d) Special tools, 2–1 loading failure, 3–6 Status command log command, 3–20 system exerciser, 3–24 machine state, 3–24 SX25, 4–9 modes, 3–8 System modifying data in memory, 3–18 opening, 4–5 obtaining status on system testing, 3–24 shutdown, 4–4 quit and reboot, 3–22 System board, 1–8 quit command, 3–22...

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