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Acer 9100 User Manual

Dual-processor system board
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System Board

1.1
Features
The M9N is a dual-processor system board that supports the Intel
Pentium II CPU. It contains an exclusive connector for the CPU board
that carries two slots for the Pentium II CPU modules.
This high-performance 64-bit system board utilizes both the ISA and
the PCI local bus architecture. Two ISA and five PCI bus slots reside
on the board to allow installation of either master or slave devices.
A 50-pin Fast SCSI-II interface and two 68-pin Wide SCSI interfaces
come with the system board to connect SCSI devices. External I/O
interfaces include a parallel port and a video port, RJ-45 and USB
connectors, and keyboard and mouse ports.
The system board supports two optional features, the ASM Pro and
the remote diagnostic management (RDM), that allow better server
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.
System Board
1-1

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Summary of Contents for Acer 9100

  • Page 1: System Board

    System Board Features The M9N is a dual-processor system board that supports the Intel Pentium II CPU. It contains an exclusive connector for the CPU board that carries two slots for the Pentium II CPU modules. This high-performance 64-bit system board utilizes both the ISA and the PCI local bus architecture.

  • Page 2: Major Components

    Major Components The system board has the following major components: CPU board slot Two ISA and five PCI bus slots (one PCI slot may include an optional RAID port) 256-KB Flash ROM for system BIOS System clock/calendar with battery backup 50-pin Fast SCSI-II and two 68-pin Wide SCSI interfaces Two 24-pin RDM interfaces IDE hard disk and diskette drive interfaces...
  • Page 3 Layout Figure 1-1 shows the system board components. Keyboard port Mouse port Parallel port Video port RJ-45 connector USB connector CPU board slot PCI slots ISA slots Flash ROM BIOS RAID port (optional) Figure 1-1 System Board Layout System Board Wide SCSI connector 2 Wide SCSI connector 1 Narrow SCSI connector...

  • Page 4: Jumper And Connector Locations

    Jumpers and Connectors 1.4.1 Jumper and Connector Locations Figure 1-2 shows the jumper and connector locations on the system board. Figure 1-2 System Board Jumper and Connector Locations Jumpers are prefixed “JP”. Connectors are prefixed “CN”. The blackened pin of a jumper represents pin 1.

  • Page 5: Jumper Settings

    1.4.2 Jumper Settings Table 1-1 lists the system board jumpers with their corresponding settings and functions. Table 1-1 System Board Jumper Settings Jumper Setting Software Shutdown Control for CN4 BIOS Type 2-3* Password Security 2-3* SCSI Channel 1 High-Byte Termination 1-2* Open VGA Feature...

  • Page 6: Connector Functions

    1.4.3 Connector Functions Table 1-2 lists the different connectors on the system board and their respective functions. Table 1-2 Connector Functions Connector COM 1 CN2, U3, U8 Power connectors COM 2 Software shutdown connector for 420-watt SPS PS/2 mouse (above) / keyboard (below) connectors Power switch Power LED and keylock connector CN10...

  • Page 7: Esd Precautions

    ESD Precautions Always observe following precautions before installing a system component: Do not remove a component from its antistatic packaging until you are ready to install it. Wear a wrist grounding strap before handling electronic components. Wrist grounding straps are available at most electronic component stores.

  • Page 8: Video Memory Upgrade

    Video Memory Upgrade Larger video memory allows you to display higher resolutions and more colors. The system board comes with a 1-MB video memory onboard upgradable to 2 MB. Follow these steps to upgrade the video memory: Locate the video DRAM upgrade sockets labeled U36 and U37 on the system board.

  • Page 9: Asm Pro

    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/1.5V 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 10: Remote Diagnostic Management

    Remote Diagnostic Management Remote Diagnostic Management (RDM) 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 11: Software Error Messages

    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 explains the different types of error messages and corresponding corrective measures. There are two general types of error messages: Software System 1.9.1...
  • Page 12 Table 1-3 System Error Messages Message CMOS Battery Error CMOS Checksum Error Display Card 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 Keyboard Error or No...
  • Page 13 Table 1-3 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...

  • Page 14: Correcting Error Conditions

    1.9.3 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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