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System Board
1.1
Features
The M9A is a dual-processor system board that supports the Intel
P54C and P55C CPUs. The board contains an exclusive slot for the
CPU board that carries the 321-pin zero-insertion force (ZIF) CPU
sockets plus the embedded 512-KB pipeline burst second-level
cache.
This high-performance 64-bit system board utilizes both the EISA and
the PCI local bus architecture. Two EISA, four PCI bus slots, and one
EISA/PCI shared slot reside on the board to allow installation of either
master or slave devices.
The system board has four DRAM banks composed of eight 72-pin
SIMM sockets that accommodate both fast-page mode and EDO
(extended data output) SIMMs. The sockets support a total of 512-
MB system memory using 64-MB SIMMs.
A 50-pin Fast SCSI-II interface and a 68-pin Wide SCSI interface
come with the system board to connect SCSI devices.
external I/O interfaces include two 9-pin serial ports, one parallel port,
a video port, and keyboard and mouse ports.
The system board supports two optional features that allow better
server management, the ASM Pro and the remote diagnostic
management (RDM). The ASM Pro detects system problems, such
as CPU thermal condition, 5V/3.3V detection, and PCI bus utilization
calculation. The RDM allows execution of a diagnostic program from
a remote station to fix the detected problems or to reboot the system.
System Board
Standard
1-1
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Table of Contents
Related Manuals for Acer 9000V
Summary of Contents for Acer 9000V
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Page 1: System Board
System Board Features The M9A is a dual-processor system board that supports the Intel P54C and P55C CPUs. The board contains an exclusive slot for the CPU board that carries the 321-pin zero-insertion force (ZIF) CPU sockets plus the embedded 512-KB pipeline burst second-level cache. -
Page 2: Major Components
Major Components The system board has the following major components: Four DRAM banks composed of eight 72-pin SIMM sockets that support single- and double-density 60 ns SIMMs CPU board slot Four PCI, two EISA bus slots, and one EISA/PCI shared slot 256-KB Flash ROM for system BIOS System clock/calendar plus 8 KB extended CMOS RAM with battery backup... - Page 3 Layout Figure 1-1 shows the system board components. 1 COM1 2 COM2 3 Mouse port 4 Keyboard port 5 Video port 6 Parallel port 7 Video upgrade sockets 8 CPU board slot 9 PCI slots EISA slots Real-time clock Flash ROM BIOS Figure 1-1 System Board Layout System Board...
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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” and “SW. The blackened pin of a jumper represents pin 1. -
Page 5: Jumper Settings
1-2* VGA Feature 1-2* Default setting System Board Function Check password Bypass password Acer Terminator always set to ON Use SCSI Setup Utility to set terminator to ON or OFF Wide SCSI Standard Software shutdown enabled Hardware reset enabled Hardware reset button connector... -
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 Power connector Power connector Backplane board HDD status connector IDE hard disk connector RDM connector RDM connector Diskette drive connector CN11 68-pin Wide SCSI connector CN12... -
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: Memory Configurations
1.6.2 Memory Configurations Table 1-3 Memory Configurations Bank0 Bank1 8 MB 8 MB 16 MB 16 MB 32 MB 32 MB 64 MB 64 MB 8 MB 8 MB 16 MB 16 MB 8 MB 8 MB 32 MB 32 MB 16 MB 16 MB 32 MB... -
Page 9: Installing A Simm
1.6.3 Installing a SIMM Follow these steps to install a SIMM: Carefully slip a SIMM at a 45 angle into a socket making sure that the curved edge indicating the pin 1 of the SIMM matches pin 1 of the socket. A SIMM fits only in one direction. -
Page 10: Removing A Simm
1.6.4 Removing a SIMM Follow these steps to remove a SIMM: Press the holding clips on both sides of the SIMM outward to release it. Move the SIMM to a 45 angle. Pull the SIMM out of the socket. Figure 1-4 Removing a SIMM 1-10 Holding Clip... -
Page 11: Reconfiguring The System
1.6.5 Reconfiguring the System You must enter Setup after installing or removing SIMMs to reconfigure the system. Follow these steps to reconfigure the system: Turn the system on. A memory error message appears, indicating that the total memory does not match the value stored in CMOS. -
Page 12: 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 U18 and U21 on the system board. -
Page 13: Pci Slot Configuration
PCI Slot Configuration 1.8.1 PCI-to-PCI Bridge Feature The system board carries a PCI-to-PCI bridge controller chipset that expands the capability of the PCI system by allowing all the five PCI slots in the system to be bus masters. The bridge has two interfaces. The primary interface connects directly to the PCI bus close to the host CPU. -
Page 14: 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 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 15: Remote Diagnostic Management
1.10 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 16 Insert the cable end with the RDM button into the slot on the housing front panel. Attach the other end of the RDM cable to CN13 (pins 5-6, 11-12) on the system board. Note that the covered pin of the cable connector does not connect to any pin.
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Page 17: Software Error Messages
1.11 Error Messages Do not continue using the computer if you receive an error message of any type. Note the message and take corrective action. section explains the different types of error messages and corresponding corrective measures. There are two general types of error messages: Software System 1.11.1... - Page 18 Table 1-4 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 19 Table 1-4 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...
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Page 20: Correcting Error Conditions
1.11.3 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.