POST error messages
The
Audible and visual messages occur before the operating system starts if the POST encounters a problem. POST checks the following items to ensure that the workstation system is functioning properly:
●Keyboard
●DIMMs
●Diskette drives
●All mass storage devices
●CPUs
●Controllers
●Fans
●Temperature sensors
●Cables (front/rear panels, audio, and USB ports)
The table shown next describes the POST error messages.
Table 6-10 POST error messages
Screen message | Probable cause | Recommended action | |
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System ROM checksum. | Verify the you have the latest ROM: | ||
Error |
| 1. | Flash the ROM, if needed. |
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| 2. | If an expansion card was recently added, remove |
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| it to find out if the problem remains. |
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| 3. | Clear CMOS. If the message disappears, there |
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| might be a problem with the expansion card. |
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| 4. | Replace the system board. |
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DMA, timers, and so forth, might be set | 1. | Clear the CMOS. | |
| improperly or might be defective. | 2. | Remove the expansion boards. |
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| 3. | Replace the system board. |
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Option ROM for a device could not run | Run the Computer Setup (F10) Utility to disable | ||
option ROMs | because of memory constraints. | unneeded option ROMs, and to enable ACP0/USB | |
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| Buffers at Top of Memory. |
● RTC battery might need replacement.
● CMOS jumper might not be properly installed.
1.Set the date and time from the Control Panel or in the Computer Setup (F10) Utility (depending on the operating system).
2.If the problem persists, replace the RTC battery.
ENWW | Diagnostic codes and errors 139 |