Dell Latitude Xpi CD - Manual (Page 30)

3-2 Dell Latitude XPi CD Service Manual
3-1-1
3-1-2
Slave DMA register
failure
Master DMA register
failure
System board faulty
3-1-3
3-1-4
Master interrupt mask
register failure
Slave interrupt mask
register failure
System board faulty
3-2-4 Keyboard controller test
failure Keyboard assembly faulty or system
board faulty
3-3-4
3-4-1
3-4-2
Display memory test
failure
Display initialization
failure
Display retrace test
failure
System board faulty
4-2-1
4-2-2
4-2-3
4-2-4
No timer tick
Shutdown failure
Gate A20 failure
Unexpected interrupt in
protected mode
System board faulty
4-3-1 Memory failure above
address 0FFFFh Memory module improperly seated
or system memory controller faulty
(system board faulty)
4-3-3 Timer chip counter 2
failure System board faulty
4-3-4 Time-of-day clock
stopped Reserve battery faulty or system
board faulty
4-4-1 Serial port failure System board faulty
4-4-2 Parallel port test failure System board faulty
4-4-3 Math coprocessor
failure System board faulty
Table 3-1. POST Beep Codes (Continued)
Beep Code Error Probable Causes