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
88
