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Nexcom NEX 6620A User Manual

Atx industry server board
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NEX 6620A User's Guide
Rev. B0
0301
NEX 6620A
ATX Industry Server Board
User' ' ' ' s Guide
NEXCOM

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Summary of Contents for Nexcom NEX 6620A

  • Page 1 NEX 6620A User's Guide Rev. B0 0301 NEX 6620A ATX Industry Server Board User′ ′ ′ ′ s Guide NEXCOM...
  • Page 2 Trademarks NEX 6620A is registered trademarks of NEXCOM Co., Ltd., IBM PC is a registered trademark of International Business Machines Corporation. Intel and Pentium are registered trademarks of Intel Corporation.
  • Page 3 0301 How to use this guide This manual is written to help you use NEX 6620A. It describes how to arrange various settings on the Pentium CPU board to meet your requirements. It is briefed as follows: Chapter 1, “Introduction” gives an overview of the product‘s specifications. It also tells you what are included in the product package.

  • Page 4: Chapter 1 Introduction

    DP architectures. Again, the standard ATX form factor is the greatest advantage of the NEX 6620A for any workstation chassis, and it will help a lot for the NEX 6620A to be widely accepted by the power users in the compute-intensive workstation applications or the I/O intensive server applications.

  • Page 5: Specifications

    NEX 6620A User's Guide Rev. B0 0301 1-1 Specifications Specification Model Available NEX 6620A -- ATX Dual Socket 370 Pentium III DDR Full Function Server Board NEX 6620 -- ATX Dual Socket 370 Pentium III DDR Server Board Basic Model...
  • Page 6 NEX 6620A User's Guide Rev. B0 0301 Drivers support：DOS/Windows, Windows 95/98/2000, Windows NT4.0, Netware, SCO Open Server 5.0 Rear Panel 4 LAN LED (active/link ×2, speed ×2) On Board SCSI Adaptec AIC 7899 dual channel Ultra 160 SCSI controller Brand New Ultra 160 SCSI support 160MB/s (Max.) transfer rate, up to 12 meter cable...
  • Page 7 9 pin D-type connector ×2 (for SIO) 25 pin D-type connector ×1 (for PIO) LAN LED ×4 (active/link ×2, speed ×2) NEX 6620A / NEX 6620 NEX 6620VL2 Power Requirements ( With Basic configuration running Windows 2000 WIN HCT system stress ) +3.3V：1A...

  • Page 8: Switches And Connectors

    NEX 6620A User's Guide Rev. B0 0301 Chapter 2 Switches and Connectors 2-1 Main Board Layout This chapter gives the definitions and shows where to locate the positions of switches and connectors. Switches and Connectors...
  • Page 9 NEX 6620A User's Guide Rev. B0 0301 2-2 Connector Pin Define & Jumper Setting Switches and Connectors...
  • Page 10 NEX 6620A User's Guide Rev. B0 0301 CN1 : Dual High PC99 Complied PS/2 Connector Pin No. Description Pin No. Description Keyboard Data Mouse Data Chassis Ground Chassis Ground +5V Standby +5V Standby Keyboard Clock Mouse Clock Chassis Ground Chassis Ground...
  • Page 11 NEX 6620A User's Guide Rev. B0 0301 CN4 : Parallel Port & VGA ( DB25 + DB15 Connector ) Pin No. Description Pin No. Description Strobe# Data 0 Data 1 Data 2 Data 3 Data 4 Data 5 Data 6...
  • Page 12 NEX 6620A User's Guide Rev. B0 0301 CN5 : Stand-alone VGA DB-15 Connector Pin No. Description Pin No. Description Green Blue Ground Chassis Ground Chassis Ground Chassis Ground Ground Pull-up DDC Data Horizontal Sync. Vertical Sync. DDC Clock Chassis Ground...
  • Page 13 NEX 6620A User's Guide Rev. B0 0301 CN8: Dual High RJ45 LAN Connector Pin No. Description Pin No. Description LAN1 TX+ LAN1 TX- LAN1 RX+ TERMPLANE TERMPLANE LAN1 RX- TERMPLANE TERMPLANE LAN2 TX+ LAN2 TX- LAN2 RX+ TERMPLANE TERMPLANE LAN2 RX-...
  • Page 14 NEX 6620A User's Guide Rev. B0 0301 CN10, CN11 : IDE Connector Pin No. Description Pin No. Description Reset # Ground Data 7 Data 8 Data 6 Data 9 Data 5 Data 10 Data 4 Data 11 Data 3 Data 12...
  • Page 15 NEX 6620A User's Guide Rev. B0 0301 CN12, CN14 : SCSI 68 Pin Connector Pin No. Description Pin No. Description Plus Data12 Plus Data13 Plus Data14 Plus Data15 Plus High Byte Parity Plus Data0 Plus Data1 Plus Data2 Plus Data3...
  • Page 16 NEX 6620A User's Guide Rev. B0 0301 CN13 : Floppy Disk Connector Pin No. Description Pin No. Description Ground Drive Density Select 0 Ground Ground Drive Density Select 1 Ground Index Pulse Input Ground Motor On 0 Ground Drive Select 1...
  • Page 17 NEX 6620A User's Guide Rev. B0 0301 J8 : 1x4 Pin Header for SCSI LED Pin No. Description Pin No. Description Pull-up Channel A Active# Pull-up Channel B Active# J9 : 1x2 Pin Header for ACPI Function S0_LED Pin No.
  • Page 18 NEX 6620A User's Guide Rev. B0 0301 J15 : 2x4 Pin Header for Digital I/O ( Refer to Appendix for Control Table ) Pin No. Description Pin No. Description Digital input 1 Digital output 1 Digital input 2 Digital output 2...
  • Page 19 NEX 6620A User's Guide Rev. B0 0301 ( * = Default ) JP1 : 1x3 Jumper for On Board RTC Pin No. Description Operation Mode 1, 2 Short 2, 3 Short Clear CMOS Switches and Connectors 2-12...

  • Page 20: Chapter 3 Capability Expanding

    CPU. 3-1 System Memory NEX 6620A series can install to 4 Double Data Memory Module (DDR) DIMM sockets and supports the maximum memory size up to 4GB. The architecture to provide the best choice for performance vs. stability 184 pins DDR SDRAM DIMM Module.
  • Page 21 NEX 6620A User's Guide Rev. B0 0301 This page is intentionally left blank. Capability Expanding...

  • Page 22: Award Bios Setup

    The Chapter show the currently BIOS setup picture is for reference only, which may change by the BIOS modification in the future. Any Major updated items or re-version, user can download from NEXCOM web site http://www.nexcom.com.tw ,or any unclear message, can contact NEXCOM Customer Service people for help http://www.nexcom.com.tw/contact/contact.htm...

  • Page 23: Control Keys

    NEX 6620A User's Guide Rev. B0 0301 Control Keys Up arrow Move to previous item Down arrow Move to next item Left arrow Move to the item in the left hand Right arrow Move to the item in the right hand...

  • Page 24: Getting Help

    NEX 6620A User's Guide Rev. B0 0301 Getting Help Main Menu The on-line description of the highlighted setup function is displayed at the bottom of the screen. Sub-Menu If you find a right pointer symbol appears to the left of certain fields (as shown in the right view), that means a sub-menu containing additional op-tions for the field can be launched from this field.

  • Page 25: Integrated Peripherals

    NEX 6620A User's Guide Rev. B0 0301 The Main Menu Once you enter Award BIOS CMOS Setup Utility, the Main Menu (Figure 1) will appear on the screen. The Main Menu allows you to select from ten setup functions and two exit choices. Use arrow keys to select among the items and press <Enter>...

  • Page 26: Pnp/Pci Configuration

    NEX 6620A User's Guide Rev. B0 0301 PNP/PCI Configuration This entry appears if your system supports PnP / PCI. PC health Status Display CPU/System Temperature, Fan speed. Frequency/Voltage Control Use this menu to specify your settings for frequency/voltage control. Load Fail-Safe Defaults Use this menu to load the BIOS default values for the minimal/stable performance for your system to operate.

  • Page 27: Standard Cmos Features

    NEX 6620A User's Guide Rev. B0 0301 Standard CMOS Features The items in Standard CMOS Setup Menu are divided into 10 categories. Each category includes no, one or more than one setup items. Use the arrow keys to highlight the item and then use the <PgUp> or <PgDn>...
  • Page 28 NEX 6620A User's Guide Rev. B0 0301 1.2M, 5.25 in 720K, 3.5 in 1.44M, 3.5 in 2.88M, 3.5 in 3 Mode floppy disk drives (FDD) are 3 1/2” Disabled drives used Japanese computer Drive A systems. If you need to access data...
  • Page 29 NEX 6620A User's Guide Rev. B0 0301 IDE Adapters The IDE adapters control the hard disk drive. Use a separate sub menu to configure each hard disk drive. Use the legend keys to navigate through this menu and exit to the main menu. Use Table 3 to configure the hard disk.

  • Page 30: Advanced Bios Features Setup Menu

    NEX 6620A User's Guide Rev. B0 0301 Advanced BIOS Features Setup Menu This section allows you to configure your system for basic operation. You have the opportunity to select the system’s default speed, boot-up sequence, keyboard operation, shadowing and security.
  • Page 31 NEX 6620A User's Guide Rev. B0 0301 CPU Internal Cache/External Cache These two categories speed up memory access. However, it depends on CPU/chipset design. The default value is Enable. If your CPU without Internal Cache then this item “CPU Internal Cache” will not be show.

  • Page 32: Typematic Rate Setting

    NEX 6620A User's Guide Rev. B0 0301 Gate A20 Option Select if chipset or keyboard controller should control GateA20. Normal A pin in the keyboard controller controls GateA20 Fast Lets chipset control Gate A20 Typematic Rate Setting Key strokes repeat at a rate determined by the keyboard controller. When enabled, the typematic rate and typematic delay can be selected.

  • Page 33: Hdd S.m.a.r.t. Capability

    NEX 6620A User's Guide Rev. B0 0301 HDD S.M.A.R.T. Capability S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a technology developed to manage the reliability of the hard disk by predicting future device failures. The hard disk needs to be S.M.A.R.T.

  • Page 34: Advanced Chipset Features Setup Menu

    NEX 6620A User's Guide Rev. B0 0301 Advanced Chipset Features Setup Menu Since the features in this section are related to the chipset in the CPU board and all are optimized, you are not recommended to change the default settings in the setup table, unless you know very detailed of the chipset features.

  • Page 35: Agp & P2P Bridge Control

    NEX 6620A User's Guide Rev. B0 0301 DRAM Clock The chipset supports synchronous and asynchronous mode between host clock and DRAM clock frequency. Host CLK The DRAM clock will be equal to the Host Clock. HCLK-33M The DRAM clock will be equal to the Host Clock minus 33MHz.
  • Page 36 NEX 6620A User's Guide Rev. B0 0301 The Choice: 4M, 8M, 16M, 32M, 64M, 128M, 256M. AGP Mode 1X, 2X, 4X The Choice: AGP Driving Control This filed is used to adjust the AGP driving force. Selecting Manual allows you to type an AGP driving force in AGP Driving Value.

  • Page 37: System Bios Cacheable

    NEX 6620A User's Guide Rev. B0 0301 In order to improve performance, certain space in memory can be reserved for ISA cards. This memory must be mapped into the memory space below 16 MB. The Choice: Disabled, 15M - 16M.

  • Page 38: Via Onchip Ide Device

    NEX 6620A User's Guide Rev. B0 0301 Integrated Peripherals Onboard VGA/LAN1/LAN2/SCSI H/W Active Select the enabled if there is a H/W active installed on the system board and you wish to use it. The Choice: Enabled, Disabled. Onboard LAN Boot ROM Select enabled if you wish to run the LAN Boot ROM as boot–up your computer.
  • Page 39 NEX 6620A User's Guide Rev. B0 0301 IDE Prefetch Mode The onboard IDE drive interfaces supports prefetching, for faster drive accesses. Set to Disabled if your primary and/or econdary add-in IDE interface does not support prefetching. The Choice: Enabled, Disabled.

  • Page 40: Usb Controller

    NEX 6620A User's Guide Rev. B0 0301 The Choice: Half, Full. TxD, RxD Polarity Active This item allows you to determine the active of IR. TxD, RxD signal. The Choice: “Hi, Hi”, “Lo, Lo”, “Lo, Hi”, “Hi, Lo”. Onboard Parallel Port This item allows you to determine access On-Board parallel port controller with which I/O address.

  • Page 41: Power Management Setup

    NEX 6620A User's Guide Rev. B0 0301 Power Management Setup The Power Management Setup allows you to configure you system to most effectively save energy while operating in a manner consistent with your own style of computer use. ACPI Function This item allows you to enable/disable the Advanced Configuration and Power Management (ACPI).

  • Page 42: Soft-Off By Pwr-Bttn

    NEX 6620A User's Guide Rev. B0 0301 When enabled and after the set time of system inactivity, the hard disk drive will be powered down while all other devices remain active. The Choice: ranges from 1 min. to 15 min. and Disable.

  • Page 43: Resume Time (Hh:mm: Ss)

    NEX 6620A User's Guide Rev. B0 0301 When enabled, you can “wake-up” your system using a PCI rev.2.2 card, when a “PME” event occurring. The Choice: Enabled, Disabled. Modem Ring Resume An input signal on the serial Ring Indicator(RI) line (in other words, an incoming call on the modem) awakens the system from a soft off state..

  • Page 44: Reset Configuration Data

    NEX 6620A User's Guide Rev. B0 0301 PnP/PCI Configuration This section describes configuring the PCI bus system. PCI, or Peripheral Component Interconnect, is a system which allows I/O devices to operate at speeds nearing the speed the CPU itself uses when communicating with its own special components.

  • Page 45: Memory Resources

    NEX 6620A User's Guide Rev. B0 0301 Press <Enter> to enter the sub-menu, and you will see a sub-menu. IRQ Assigned To This item allows you to determine the IRQ assigned to PCI Device or Reserved. The Choice: PCI Device, Reserved.
  • Page 46 NEX 6620A User's Guide Rev. B0 0301 PC Health Status CPU Warning Temperature This item is used to specify a thermal standard for CPU. If CPU temperature reaches the specified standard, the system will issue a warning and allows you to prevent the CPU overheat problem.

  • Page 47: Spread Spectrum Modulated

    NEX 6620A User's Guide Rev. B0 0301 Frequency/Voltage Control Auto Detect DIMM/PCI Clk Use this item to enable or disable the feature of auto detecting the clock frequency of the installed DRAM DIMMs and PCI cards. The Choice: Enabled, Disabled.

  • Page 48: Supervisor/User Password Setting

    NEX 6620A User's Guide Rev. B0 0301 The Choice: X3.0~X8.0. Supervisor/User Password Setting You can set either supervisor or user password, or both of then. The differences between are: supervisor password : can enter and change the options of the setup menus.

  • Page 49: Power-On Boot

    NEX 6620A User's Guide Rev. B0 0301 Power-On Boot After you have made all the changes to CMOS values and the system cannot boot with the CMOS values selected in Setup, restart the system by turning it OFF then ON or Pressing the "RESET" button on the system case.
  • Page 50 NEX 6620A User's Guide Rev. B0 0301 4-2 BIOS Reference - POST Message During the Power On Self Test (POST), if the BIOS detects an error requiring you to do something to fix, it will either sound a beep code or display a message.
  • Page 51 NEX 6620A User's Guide Rev. B0 0301 DISPLAY TYPE HAS CHANGED SINCE LAST BOOT Since last powering off the system, the display adapter has been changed. You must configure the system for the new display type. EISA Configuration Checksum Error PLEASE RUN EISA CONFIGURATION UTILITY The EISA non-volatile RAM checksum is incorrect or cannot correctly read the EISA slot.
  • Page 52 NEX 6620A User's Guide Rev. B0 0301 Hard Disk(s) fail (08) Sector Verify failed. Invalid EISA Configuration PLEASE RUN EISA CONFIGURATION UTILITY The non-volatile memory containing EISA configuration information was programmed incorrectly or has become corrupt. Re-run EISA configuration utility to correctly program the memory.
  • Page 53 NEX 6620A User's Guide Rev. B0 0301 OFFENDING SEGMENT: This message is used in conjunction with the I/O CHANNEL CHECK and RAM PARITY ERROR messages when the segment that has caused the problem has been isolated. PRESS A KEY TO REBOOT This will be displayed at the bottom screen when an error occurs that requires you to reboot.

  • Page 54: Bios Reference - Post Codes

    NEX 6620A User's Guide Rev. B0 0301 4-3 BIOS Reference - POST Codes POST (hex) Description Test CMOS R/W functionality. Early chipset initialization: -Disable shadow RAM -Disable L2 cache (socket 7 or below) -Program basic chipset registers Detect memory -Auto-detection of DRAM size, type and ECC.
  • Page 55 NEX 6620A User's Guide Rev. B0 0301 POST (hex) Description for ESCD & DMI support. Reserved Use walking 1’s algorithm to check out interface in CMOS circuitry. Also set real-time clock power status, and then check for override. Reserved Program chipset default values into chipset. Chipset default values are MODBINable by OEM customers.
  • Page 56 NEX 6620A User's Guide Rev. B0 0301 POST (hex) Description Reserved Reserved Reserved Initialize INT 09 buffer Reserved 1. Program CPU internal MTRR (P6 & PII) for 0-640K memory address. 2. Initialize the APIC for Pentium class CPU. 3. Program early chipset according to CMOS setup. Example: onboard IDE controller.
  • Page 57 NEX 6620A User's Guide Rev. B0 0301 POST (hex) Description Test 8259 interrupt mask bits for channel 2. Reserved Reserved Test 8259 functionality. Reserved Reserved Reserved Initialize EISA slot Reserved 1. Calculate total memory by testing the last double word of each 64K page.
  • Page 58 NEX 6620A User's Guide Rev. B0 0301 POST (hex) Description Reserved (Optional Feature) Show message for entering AWDFLASH.EXE from FDD (optional) Reserved 1. Initialize Init_Onboard_Super_IO switch. 2. Initialize Init_Onbaord_AUDIO switch. Reserved Reserved Okay to enter Setup utility; i.e. not until this POST stage can users enter the CMOS setup utility.
  • Page 59 NEX 6620A User's Guide Rev. B0 0301 POST (hex) Description Enter AWDFLASH.EXE if : -AWDFLASH is found in floppy drive. -ALT+F2 is pressed Reserved Detect & install all IDE devices: HDD, LS120, ZIP, CDROM….. Reserved Detect serial ports & parallel ports.
  • Page 60 NEX 6620A User's Guide Rev. B0 0301 POST (hex) Description 8. Clear noise of IRQs. Reserved Reserved Reserved Reserved Reserved Reserved Reserved Read HDD boot sector information for Trend Anti-Virus code 1. Enable L2 cache 2. Program boot up speed 3.
  • Page 61 NEX 6620A User's Guide Rev. B0 0301 Appendix : Digital I/O Digital I/O Control Table: IO Port (hex) Pin Name Bit = 1 Bit = 0 Locate Digital Input Input High Input Low J15.1 Digital Input Input High Input Low J15.3...

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