Acer M9D User manual

& K DSWHU



System Board

System Board 1-1

1.1 Features

The M9D is a dual-processor system board built on an ATX baseboard

that supports the Intel Pentium II CPU processor running at 266/66

MHz, 300/66 MHz, 333/66 MHz, 350/100 MHz, 400/100 MHz, and

future Intel Pentium II processors. It contains an exclusive connector

for the CPU board that carries two slots for the Pentium II CPU

modules.

The host bus interface supports a Pentium II processor with 66 or 100

MHz bus frequency. It also supports synchronous DRAM (SDRAM)

DIMMs.

The M9D supports PCI IDE, universal serial bus (USB) host/hub, and

enhanced power management. It also supports Ultra DMA/33

synchronous DMA-compatible devices.

A 50-pin Fast SCSI (Small Computer System Interface) and two 68-pin

Wide SCSIs come with the M9D to connect SCSI devices. Wide SCSI

supports 16-bit transfers while Fast SCSI uses an 8-bit bus that

doubles the clock rate to support data transfer rates of 80 Mb/s.

The M9D system board supports the USB (Universal Serial Bus)

connector, and other standard features such as two UART NS16C550

serial ports, one parallel port with Enhanced Parallel Port

(EPP)/Extended Capabilities Port (ECP) features, a diskette drive

interface, and two embedded hard disk interfaces. It also includes a

built-in 10/100 Mb/s Intel 82558 LAN chip.

1-2 User’s Guide

To allow better server management, the system board also supports

the optional ASM Pro and Remote Diagnostic management (RDM).

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. Meanwhile, RDM allows execution of the RDM

diagnostic program from a remote RDM station to fix detected

problems or to reboot the system.

The system is fully compatible with MS-DOS V6.X, DOS/V, IBM OS/2

Warp, Novell Netware, Novel SFT III, SCO UNIX, and Windows NT.

System Board 1-3

1.2 Major Components

The system board has the following major components:

•CPU board slot

•Two ISA and five PCI bus slots (one PCI/ISA shared slot)

•512-KB Flash ROM for system BIOS

•System clock/calendar with battery backup

•One 50-pin Fast SCSI and two 68-pin Wide SCSI interfaces

•One RDM interface (two 24-pin connectors)

•IDE hard disk and diskette drive interfaces

•Onboard 2 MB Video DRAM

•Super I/O, SCSI, VGA, memory, and Advanced Server

Management (ASM) controller chipsets

•External ports:

•PS/2-compatible keyboard port (optional AT-keyboard port)

•PS/2-compatible mouse port

•Parallel port

•Video port

•RJ-45 connector

•Universal Serial Bus (USB) connector

1-4 User’s Guide

1.3 Layout

Figure 1-1 shows the system board components.

1 PS/2 Mouse port

2 PS/2 Keyboard port

3 Parallel port

4 Video port

5 RJ-45 connector

6 USB connector

7 LAN controller

8 PCI slots

9 Flash ROM BIOS

10 ISA slots

11 PCI to PCI bridge chipset

12 SCSI chipsets

13 SMM connector

14 Wide SCSI connectors

15 CPU board connectors

16 Narrow SCSI connector

17 PCI chipset

18 IDE connector

19 Super I/O chipset

20 Diskette drive connector

21 I/O APIC chipset

22 RDM connectors

23 Battery

24 Power connectors

25 Video controller

Figure 1-1 System Board Layout

810

23 17

21 18

System Board 1-5

1.4 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

and connectors represents pin 1.

1-6 User’s Guide

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 Function

VGA Disable Control

JP1 1-2*

2-3 Auto

Onboard VGA disable

Password Security

JP2 1-2

2-3* Check password

Bypass password

BIOS Type

JP3 1-2

2-3* Acer

Fujitsu

Buzzer

JP4 1-2

2-3* Use LCD board’s buzzer

Use onboard buzzer

Boot Block Function

JP5 1-2

2-3* Supports boot block function

Do not support boot block function

*Default setting

System Board 1-7

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 Function

CN1 Power switch connector

CN2, CN17 RDM connectors

CN3 COM 1 port connector

CN4,CN10,CN11 Power connectors

CN5 HDD LED outlet connector

CN6 Thermal inlet connector

CN7 Chassis Door Intrusion

CN8 COM2 port connector

CN9 Power LED connector

CN12 PS/2 mouse (above) / keyboard (below)

connectors

CN13 5V Standby supply and power supply connector

CN14 Debugging connector

CN15 Fail LED connector

CN16 Power supply status connector

CN18 LCD board connector

CN19 RDM LED connector

CN20 Printer/VGA outlet connector

CN21 FDD connector

CN22 IDE connector

CN23 RJ-45 LAN connector

CN24 50-pin narrow SCSI connector

CN25 USB connector

CN28 WOL adapter connector

CN29 First channel 68-pin SCSI connector

CN30 P3 hot-plug notification connector

CN31 Hot-plug LED connector

1-8 User’s Guide

Table 1-2 Connector Functions

Connector Function

CN32 Second channel 68-pin SCSI connector

CN33 P2 hot-plug notification connector

CN34 HDD LED inlet connector

CN35 SMM Card connector

FAN1-FAN4 Housing fan connectors

System Board 1-9

1.5 ESD Precautions

Always observe the following electrostatic discharge (ESD)

precautions before installing a system component:

1. Do not remove a component from its antistatic packaging until

you are ready to install it.

2. Wear a wrist grounding strap before handling electronic

components. Wrist grounding straps are available at most

electronic component stores.

Do not attempt the procedures described in

the following sections unless you are a

qualified technician.

1-10 User’s Guide

1.6 Video Function

The ATI Rage IIc VGA controller chipset is a highly integrated 64-bit

graphics accelerator that supports 2D and 3D video applications. The

board comes with a 2-MB video memory.

1.6.1 Supported Video Resolutions

The onboard video controller and MPEG decoder enable the system to

support video functions, as well as enhance the video display.

The following table lists the video resolutions that the system supports:

Table 1-3 Video Resolutions

Display

Resolution Refresh

Rate Horizontal

Frequency (KHz) Pixel Clock

(MHz)

640 x 480 60 31.4 25.1

640 x 480 72 37.7 31

640 x 480 75 37.5 31.5

640 x 480 90 47.9 39.9

640 x 480 100 52.9 44.9

800 x 600 48

int.

33.8 36.0

800 x 600 56 35.2 36.0

800 x 600 60 37.8 39.9

800 x 600 70 44.5 44.9

800 x 600 72 48.0 50.0

800 x 600 75 46.9 49.5

800 x 600 90 57.1 56.6

800 x 600 100 62.5 67.5

1024 x 768 43

int.

35.5 44.9

1024 x 768 60 48.3 65.0

1024 x 768 70 56.4 75.0

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