Dell OptiPlex 790 (Early 2011) User Manual
Page 74
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Code
3-2-2
Cause
Interrupt vector loading failure
Code
3-2-4
Cause
Keyboard Controller Test failure
Code
3-3-1
Cause
NVRAM power loss
Code
3-3-2
Cause
NVRAM configuration
Code
3-3-4
Cause
Video Memory Test failure
Code
3-4-1
Cause
Screen initialization failure
Code
3-4-2
Cause
Screen retrace failure
Code
3-4-3
Cause
Search for video ROM failure
Code
4–2–1
Cause
No time tick
Code
4–2–2
Cause
Shutdown failure
Code
4–2–3
Cause
Gate A20 failure
Code
4–2–4
Cause
Unexpected interrupt in protected mode
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