Troubleshooting
CSA7404B, TDS7704B, TDS7404B, TDS7254B & TDS7154B Service Manual
6-77
Table 6- 8: BIOS Error messages (Cont.)
Error message Description
Cache Memory Bad Memory may be bad.
CMOS Battery Low Replace battery.
CMOS Display Type Wrong Check Setup to make sure type is correct.
CMOS Checksup Bad Run Setup to reset val ues.
CMOS Settings Wrong Settings corrupted or the battery has failed.
CMOS Date/Time Not Set Run Setup to correct values.
DMA Error Error during read/write test of controller.
FDC Failure Error while trying to access controller.
HDC Failure Error while trying t o access controller.
CheckingNVRAM.... NVRAM is being checked.
Update OK! Invalid NVRAM has been updated.
Updated Failed Unable to update invalid NVRAM.
Keyboard Error Make sure keyboard is connected properly.
KB/Interface Error Keyboard t est failed.
Memory Size Decreased If no memory was removed, the memory may be bad.
Memory Size Increased If no memory was added, system m ay have a problem.
Memory Size Changed If no memory was added or removed, the memory may be bad.
No Boot Device Available Boot device not found.
Off Board Parity Error Parity error occurred on an off-board card.
On Board Parity Error Parity error occurred in on-board memory.
Parity Error Error occurred in on-board memory at an unknown address.
NVRAM/CMOS/PASSWORD cleared by Jumper Turn off power and remove the jumper.
<CTRL_N> Pressed CMOS is ignored and NVRAM is cleared. Enter Setup.
Table 6- 9: POST codes
Displayed
error code
Error message
Displayed
error code
Error message
00h Copying of code to specific area done. 62h DMA#1 base register test passed.
03h NMI is Disabled. To check soft reset/power--on. 65h DMA#2 base register test passed.
05h BIOS stack set. Going to disable cache i f any. 66h DMA unit 1 and 2 programming over.
06h POST code to be uncompressed. 7Fh Extended NMI sources enabling is in progress.
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