Compaq 486 - Chapter 3.2 Diagnostic Error Codes

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1782 - Disk None Fixed disk drive 1. Run Diagnostics.
Controller controller error 2. Check and/or
Failure replace the power
distribution board.
3. Replace the fixed
disk drive.
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Message Beeps Probable Cause Recommended Action
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1790 - Disk 0 Error None Fixed disk drive 1. Run Diagnostics.
error or wrong 2. Replace the
drive type drive.
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1791 - Disk 1 Error None Fixed disk drive 1. Run Diagnostics.
error or wrong 2. Replace the
drive type drive.
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XX000Y ZZ Parity None Parity RAM Run Diagnostics.
Check 2 failure
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Audible 1 Short Power on None.
successful
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Audible 2 Short Power on None.
successful
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(RESUME = None As indicated Press F1 key
"F1" KEY) to continue.
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Cha
p
ter 3.2 Dia
g
nostic Error Codes