Error Messages - Dell OptiPlex 990 Mini-Tower Service Manual

Code
Cause
Code
Cause
Code 4–4–1
Cause Serial or parallel port test failure
Code 4–4–2
Cause Failure to decompress code to shadowed memory
Code 4–4–3
Cause Math coprocessor test failure
Code
Cause

Error Messages

Address mark not found
Description The BIOS found a faulty disk sector or could not find a particular disk
sector.
Alert! Previous attempts at booting this system have failed at
checkpoint [nnnn]. For help in resolving this problem, please note
this checkpoint and contact Dell Technical Support.
Description The computer failed to complete the boot routine three consecutive times
for the same error. Contact Dell and report the checkpoint code (nnnn) to
the support technician
4–3–3
Timer-chip counter 2 failure
4–3–4
Time-of-day clock stopped
4–4–4
Cache test failure
77