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Acer 930 Manual

High-performance system board.
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C h a p t e r
C h a p t e r
1 1

System Board

1.1
Features
This high-performance system board supports the Intel Pentium II CPU
running at 233/266/300 MHz. Designed to work with Intel 440LX system
controller, which consists of the PCI/AGP controller (PAC) and the PCI/ISA
IDE accelerator (PIIX4), the CPU carries a new generation of power.
The PAC host bus interface supports up to two Pentium II processors with
66 MHz bus frequency. It also provides a 72-bit DRAM support using both
extended data output (EDO) and synchronous DRAM (SDRAM) DIMMs.
The PAC introduces a new technology, which is the Accelerated Graphics
Port (AGP) interface. Supporting up to 133 MHz data transfer rate, the
AGP interface boosts graphics performance.
The PIIX4 is a multifunction PCI device controller implementing system
functions including PCI-to-PCI bridge, PCI IDE, universal serial bus (USB)
host/hub, and enhance power management. It also supports Ultra DMA/33
synchronous DMA-compatible devices.
The system board utilizes both the ISA and the PCI local bus architecture.
Two ISA and four PCI bus slots (including one PCI/ISA shared slot) reside
on the board to allow installation of either master or slave devices.
Four memory banks composed of 168-pin dual inline memory module
(DIMM) sockets support a maximum system memory of 512 MB using
128-MB DIMMs. The sockets support both EDO and SDRAM-type
DIMMs.
A 50-pin Fast SCSI-II and a 68-pin Wide SCSI interface come with the
system board to connect SCSI devices. Standard I/O features such as two
enhanced IDE drive interfaces, two serial interfaces, one parallel port
interface, a diskette drive interface, and PS/2 mouse and keyboard
connectors reside on the system board.
The system board supports two optional features, the ASM Pro and the
remote diagnostic management (RDM), that allow better server
System Board
1-1

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   Summary of Contents for Acer 930

  • Page 1: System Board

    C h a p t e r C h a p t e r System Board Features This high-performance system board supports the Intel Pentium II CPU running at 233/266/300 MHz. Designed to work with Intel 440LX system controller, which consists of the PCI/AGP controller (PAC) and the PCI/ISA IDE accelerator (PIIX4), the CPU carries a new generation of power.
  • Page 2 management. The ASM Pro detects problems in CPU thermal condition, CPU working voltage detection ( 12V/ 5V/3.3V/1.5V), and PCI bus utilization calculation. It also detects if the CPU fan or the chassis fan malfunctions. The RDM allows execution of the RDM diagnostic program from a remote RDM station to fix detected problems or to reboot the system.
  • Page 3: Major Components

    Major Components The system board has the following major components: Exclusive slots for two Intel Pentium II processors Memory banks (Bank 0 to Bank 3) composed of four 168-pin DIMM sockets Two ISA and four PCI expansion slots (including one PCI/ISA shared slot) 256-KB Flash ROM for system BIOS 50-pin Fast SCSI-II and 68-pin Wide SCSI interfaces...
  • Page 4: System Board Layout

    1.2.1 System Board Layout DIMM sockets Pentium II CPU slot 1 Pentium II CPU slot 2 Accelerated graphics port (AGP) interface slot Primary IDE connector Secondary IDE connector RDM connectors Battery Narrow SCSI connector Wide SCSI connector Figure 1-1 System Board Layout ISA slots PCI slots BIOS...
  • Page 5: Jumpers And Connectors

    Jumpers and Connectors 1.3.1 Jumper and Connector Locations Figure 1-2 shows the jumper locations on the system board. The blackened pin on a jumper represents pin 1. Figure 1-2 Jumper and Connector Locations The blackened pin of a jumper or connector represents pin 1.
  • Page 6: Jumper Settings

    SCSI Termination JP12 1-2* Default setting Function Enabled Disabled CPU1 Dual CPU CPU 2 66 MHz 60 MHz Acer Check password Bypass password Buzzer Speaker Terminator set to ON SCSI terminator set to ON or OFF by software User’s Guide...
  • Page 7 Table 1-2 lists the CPU core over bus frequency ratios depending on JP5 settings. Table 1-2 JP5 Settings for CPU Core/Bus Frequency Ratio JP5 Settings Closed Closed Closed Closed Closed Open Closed Closed Closed Closed Open Closed Closed Open Open Open Open Open...
  • Page 8: Connector Functions

    1.3.3 Connector Functions Table 1-3 lists the different connectors on the system board and their respective functions. Table 1-3 Connector Functions Connector 250W power control connector 420W power control connector Housing fan connector 1 Housing fan connector 2 Backplane hard disk LED connector 10-pin power connector USB connector CPU1 fan connector...
  • Page 9: Esd Precautions

    Table 1-3 Connector Functions (continued) Connector CN25, CN28 RDM connectors CN26 Redundant power status connector CN27 Wake up ON LAN connector CN29 Feature connector (for Intel SMM) CN30 Narrow SCSI connector CN32 Wide SCSI connector CN33 Speaker connector CN31 Housing door connector ESD Precautions Always observe the following ESD (electrostatic discharge) precautions before installing any system component:...
  • Page 10: Installing The Processor Heat Sink

    Installing the Processor Heat Sink and Fan The Pentium II processor module comes with holes on one side to hold the clips of the heat sink and fan. The upper set of holes (near the latches) on the processor are wider and should match the wider ends of the clips on the heat sink.
  • Page 11 Follow these steps when installing the heat sink and fan to the Pentium II processor module: Remove the thermal tape protector at the back of the heat sink. Insert the wide clip ends to the wide holes on the processor and the narrow clip ends to the narrow holes.
  • Page 12 Figure 1-5 Locking a Wide Clip End Figure 1-6 Locking a Narrow Clip End Repeat step 3 to lock the other clip. 1-12 User’s Guide...
  • Page 13: Installing A Pentium Ii Processor

    Installing a Pentium II Processor Follow these steps to install the Pentium II processor to the socket on the CPU board. Place the retention mechanism over the processor socket on the CPU board. Secure it with the screws that came with the package. Figure 1-7 Installing the Pentium II Retention Mechanism With the processor module golden fingers pointing downward, align...
  • Page 14 Press down the processor module until the golden fingers completely fit into the socket. Figure 1-8 Installing a Pentium II Processor Press the latches on the sides to lock the processor module into place. Figure 1-9 Securing the Pentium II Processor 1-14 User’s Guide...
  • Page 15: Removing A Pentium Ii Processor

    Removing a Pentium II Processor Follow these steps to remove the Pentium II CPU module from the slot. Unlock the latches the secure that processor module. Figure 1-10 Unlocking the Module Latches Firmly hold the processor module and pull it out of the socket. Figure 1-11 Removing the Pentium II Processor System Board...
  • Page 16: Memory Upgrade

    Memory Upgrade The four 168-pin sockets onboard support both extended data output (EDO) and SDRAM-type DIMMs. You may install 16-MB, 32-MB, 64-MB, or 128-MB DIMMs for a maximum of 512-MB system memory. Each of the sockets represents one independent bank. This allows you to install DIMMs with different capacities to form a configuration.
  • Page 17: Installing A Dimm

    1.8.2 Installing a DIMM To install a DIMM, align it with the socket and press it down until the holding clips secure the DIMM in place. The DIMM socket is slotted to ensure proper installation. If you slip in a DIMM but does not completely fit, you may have inserted it the wrong way.
  • Page 18: Removing A Dimm

    1.8.3 Removing a DIMM To remove a DIMM, press the holding clips on both sides of the socket outward to release the DIMM. Place your forefingers on the top of the DIMM before you press the holding clips to gently disengage the DIMM from the socket.
  • Page 19: Reconfiguring The System

    1.8.4 Reconfiguring the System Reconfigure the system after installing or removing DIMMs. Follow these steps to reconfigure the system: Reboot the system. A memory error message appears, indicating that the total memory does not match the value stored in CMOS. Press during the power-on self-test (POST) routine to run Setup.
  • Page 20 VGA/LAN Combo Card (Optional) The system board supports the VGA/LAN combo PCI card. This allows the system to support enhanced video and local area network capabilities through a single card. The VGA/LAN combo card is an option and may not be present in all models. 1.9.1 Features The combo card includes external video (CN3) and LAN (CN4) connectors.
  • Page 21 1.9.2 Card Layout Figure 1-14 shows the VGA/LAN combo card layout and jumper settings. Figure 1-14 VGA/LAN Combo Card Layout System Board 1-21...
  • Page 22 1.9.3 Jumper Settings Table 1-5 VGA/LAN Combo Card Jumper Settings Jumper Setting ROM Remapping Interrupt 2-3* VGA Controller 2-3* VGA Feature 2-3* Wake-up on LAN 1-2* LAN Power 2-3* Default setting 1-22 Function Map top 8K to bottom 8K No remapping Enabled Disabled Disabled...
  • Page 23 Table 1-6 VGA/LAN Combo Card Connector Functions Connector ATI Multimedia Connector Wake-up on LAN connector Table 1-7 VGA/LAN Combo Card LED Functions LED1 Link Integrity LED. This LED turns ON to indicate that there is a good network connection at either 10 Mbps or 100 Mbps.
  • Page 24: Card Installation

    1.9.4 Card Installation Follow these steps to install the VGA/LAN combo card. Remove a bracket cover opposite an empty PCI slot. Position the card over the PCI slot, then insert the card golden fingers into the slot until the card fits in place. Secure the card with a screw.
  • Page 25: Scsi Feature

    1.10 SCSI Feature The system board features a single-chip SCSI host adapter that adds SCSI I/O capability to the system. The chipset consists of an onboard microcontroller, bus master interface controller, and SCSI controllers. A 50-pin Fast SCSI-II interface with 10 MB/s transfer rate and a 68-pin Wide SCSI interface that transfers at 20 MB/s (Wide SCSI) and 40 MB/s (Ultra SCSI) are also onboard to accommodate various SCSI devices.
  • Page 26: Server Management Features

    1.11 Server Management Features 1.11.1 ASM Pro The ASM Pro is a server management tool based on the Simple Network Management Protocol (SNMP). It detects server problems related to the CPU thermal condition, 5V/3.3V detection, or PCI bus utilization calculation. This feature is designed primarily for server supervisors and management information system (MIS) personnel to help them detect errors or potential trouble spots in their network servers through a single management station.
  • Page 27: Remote Diagnostic Management

    1.11.2 Remote Diagnostic Management The Remote Diagnostic Management (RDM) is a network management tool that utilizes modems and telephone lines to control a host of servers from a remote station. It monitors and analyzes the server condition, updates the BIOS settings if necessary, or reboots the server in the event of failure and quickly return it to normal operation.
  • Page 28: Error Messages

    1.12 Error Messages Do not continue using the computer if you receive an error message of any type. Note the message and take corrective action. This section describes the types of error messages and lists their corresponding corrective measures. There are two general types of error messages: Software System 1.12.1...
  • Page 29 Table 1-8 System Error Messages Message CMOS Battery Error CMOS Checksum Error CPU BIOS Update Code Mismatch Diskette Drive Controller Error or Not Installed Diskette Drive Error Diskette Drive A Type Mismatch Diskette Drive B Type Mismatch Equipment Configuration Error Hard Disk Controller Error Hard Disk 0 Error Hard Disk 1 Error...
  • Page 30 Table 1-8 System Error Messages (continued) Message Memory Error at: MMMM:SSSS:OOO (W:XXXX, R:YYYY) where: M: MB, S: Segment, O: Offset, X/Y: write/read pattern Memory Size Mismatch CPU Clock Mismatch Onboard Serial Port 1 Conflict Onboard Serial Port 2 Conflict Onboard Parallel Port Conflict Pointing Device Error Pointing Device Interface Error Press F1 key to continue or...
  • Page 31: Correcting Error Conditions

    1.12.3 Correcting Error Conditions As a general rule, if an error message says "Press F1 to continue," it is caused by a configuration problem, which can be easily corrected. An equipment malfunction is more likely to cause a fatal error, i.e., an error that causes complete system failure.

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