MITSUBISHI Mustang Motherboard User Guide

MITSUBISHI Mustang Motherboard User

Front View

1| Power Mode light| 8| Line In socket
2| Power buttonCD Eject button| 9| Headphones socket
3| Front bezel door| 10| Universal Serial Bus (USB) port
4| Message Button (and light)| 11| FireWire port (factory option)
5| CD-ROM| 12| S-Video In port (factory option)
6| Diskette drive| 13| Composite Video In port (factory option)
7| Infra-red sensor|  |

Rear View

Motherboard

Memory

The motherboards two DIMM sockets accept DIMMs of up to 128 Mbytes in any combination(giving a maximum memory capacity of 256 Mbytes)

Technical Note

The DIMMs you use must have the following specification: gold contacts,3.3V, 64-bit, unbuffered, SDRAM-type with Serial Presence Detect (SPD) anda CAS latency of 2 at 66 MHz. If you use any other type of DIMM you riskdamaging the motherboard.

Cache

Cannot be Upgraded

Video RAM

Cannot be Upgraded

Processor Upgrade (MS500 MW)

This section covers processor upgrades for the MS500 with the model number prefix MW.
To use the tables below, select the processor you wish to upgrade to and confirm that the upgrade is possible.Then check additional requirements such as BIOS upgrades & processor speed jumper settings.

Processor Speed Jumper Table

Listed below are the Processor Speed Jumpers for an MS Series computer with a model number prefix ofMW.

MS500 (MW) Motherboard Processor Speed Jumper Settings

Jumper Settings

On-board video disabling (J50)

If you install a video adapter expansion card, the computer should automatically detect this and disable theon-board video adapter. If for some reason this does not happen, and you experience problems with a newly-fitted card, you can manually disable the on-board video adapter by moving the jumper in block J50 to pins 2- 3.

Audio disabling (J80)

The on-board audio codec can be disabled bt moving the jumpers on jumper block J80 to pins 2 – 3. Disablingthe audio system frees the interrupts and DMA channels used by that system (normally IRQ5, IRQ11, DMA0and DMA1).

BIOS Upgrade

For MW (MS500) model machines, the latest version of the BIOS is 11.01, which you can Download Here

Once the BIOS update file has been downloaded & saved in your C:\WINDOWS\TEMP folder

• Click on START
• Click on RUN
• Type in C:\WINDOWS\TEMP\MSTNG_15.EXE (this will create three files in your C:\WINDOWS\TEMPfolder).
• Place a blank formatted disk into the floppy drive A:
• Click on START
• Click on RUN
• Type in C:\WINDOWS\TEMP\IMAGE MUSTANG.IMG A: /M /B /Q
• When the boot disk has been created, restart the computer and boot from the diskette. When the BIOS updatehas completed, remove the diskette and restart the computer

CMOS

Replacing the configuration battery

The computer keeps a record of its current hardware configuration in a CMOS memory chipwhich is sustained by a small battery. This battery has a life of up to 5 years. If you find thatyou have to reconfigure the computer every time you turn it on, the battery is probably failingand needs to be replaced

The battery is a 3 volt lithium type (CR2032 or equivalent) typically used in calculators andother small, battery-powered electronic items

To replace the battery

1. Turn off the computer and unplug all power cords.
2. Take suitable anti-static precautions and remove the system unit cover. Formore information see the section on “Anti-static precautions” in the Safety &Regulatory Notices at the start of this manual.
3. Remove any expansion cards that impede access to the battery holder.
4. Using a non-conductive implement, release the latch that holds the battery inplace. The battery will pop up allowing you to lift it out of the holder
5. Check that the replacement battery looks the same as the battery you haveremoved.
6. Taking care not to touch the top or bottom surface of the battery, pick up thereplacement with the positive (+) terminal upwards. Press the battery into theholder using a non-conductive implement.
7. Replace any expansion cards you removed earlier and refit the system unit cover.
8. Dispose of the discharged battery in accordance with the batterymanufacturer’s instructions.

Warning

You must not use a metal or other conductive implement toremove the battery. If a short-circuit is accidentally madebetween the battery’s positive and negative terminals, thebattery may explode.

System Resources

KEY

• Fixed assignment
• Usual assignment
• Alternative assignment by BIOS Setup
• Alternative assignment by Plug-and-Play
• BS = Can be disabled by BIOS Setup
• JS = Can be disabled by changing amotherboard jumper setting

Beep Codes

3

| BIOS ROM checksum
20| 1-3-1-

1

| DRAM refresh.
22| 1-3-1-

3

| 8742 keyboard controller
2C xxxx| 1-3-4-

1

| RAM failure on address line xxxx.
2E xxxx| 1-3-4-

3

| RAM failure on data bits xxxx of low byte of memory bus.
30 xxxx| 1-4-1-

1

| RAM failure on data bits xxxx of high byte of memory bus.
46| 2-1-2-

3

| Check ROM copyright notice
58| 2-2-3-

1

| Test for unexpected interrupts
98| 1-2| Video configuration failure, or option ROM checksum failure. (One long, two short beeps.)

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