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

Code

4–3–1

Cause

Memory failure above address 0FFFFh

Code

4–3–3

Cause

Timer-chip counter 2 failure

Code

4–3–4

Cause

Time-of-day clock stopped

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

4–4–4

Cause

Cache test failure

Error Messages

Address mark not found

Description The BIOS found a faulty disk sector or could not find a particular disk sector.

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Image 48
Dell 4691901 owner manual Error Messages, Address mark not found, Code Cause No time tick Shutdown failure Gate A20 failure