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Maintenance &
Service Guide
|
Probable Cause |
Recommended Action |
|
Drive A: is present, but fails the BIOS POST diskette tests |
1. Run Setup. |
|
Probable Cause |
Recommended Action |
|
Extended memory not working or not configured properly |
1. Replace the
memory modules. |
|
Probable Cause |
Recommended Action |
|
nnn is a map of the bits at the RAM address which failed the memory test |
1. Run Setup. |
|
Probable Cause |
Recommended Action |
|
Hard drive is not working or configured properly |
1. Run Setup. |
|
Probable Cause |
Recommended Action |
|
Hard drive is not working or configured properly |
1. Run Setup. |
|
Probable Cause |
Recommended Action |
|
Type of diskette drive A: not correctly identified |
1. Run Setup. |
|
Probable Cause |
Recommended Action |
|
Problem with NVRAM (CMOS) access |
Replace the system board. |
|
Probable Cause |
Recommended Action |
|
Keyboard, I/O keyboard
controller |
1. Replace the
keyboard. |
|
Probable Cause |
Recommended Action |
|
Keyboard, I/O keyboard
controller |
1. Replace the
keyboard. |
|
Probable Cause |
Recommended Action |
|
Operating system cannot be
located on |
Run Setup. |
|
Probable Cause |
Recommended Action |
|
Parity error found in the system bus |
1. Run Setup. |
|
Probable Cause |
Recommended Action |
|
Parity error found in the I/O bus |
1. Run Setup. |
|
Probable Cause |
Recommended Action |
|
Real-time clock fails BIOS test |
Replace the system board. |
|
Probable Cause |
Recommended Action |
|
RTC battery is dead |
1. Replace the
RTC battery. |
|
Probable Cause |
Recommended Action |
|
System BIOS copied to Shadow RAM |
Replace the
system board. |
|
Probable Cause |
Recommended Action |
|
RAM cache failed the BIOS test |
Run Setup. |
|
Probable Cause |
Recommended Action |
|
CMOS is corrupted or modified incorrectly |
Run Setup. |
|
Probable Cause |
Recommended Action |
|
System RAM failed |
Replace memory modules. |
|
System Timer Error |
||
Probable Cause |
Recommended Action |
|
DMA, timers, etc. |
Replace the system board. |
|
Probable Cause |
Recommended Action |
|
Displays the address nnn
of the upper limit |
Run Setup. |
|
Probable Cause |
Recommended Action |
|
Video BIOS successfully copied to shadow RAM |
Run Setup. |
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