
Quick Troubleshooting Guide
2-9
8. Error Messages, Part 1
Power LED has no color showin
.
Computer is off.
Power LED blinks
reen 1x/second.
Normal suspend mode.
Power LED
lows red.
CPU not installed/fetchin
code.
Power LED blinks red 4x/second.
CPU thermal shutdown.
Power LED blinks red 1x/two or more seconds.
Power supply crow bar.
Beeps,
CPU or Keyboard Li
hts,
or POST error messa
es.
Power and hard drive LEDs
low red.
Riser board not seated.
Caution:
Power is continuous to the system board and power
supply even when the power switch is turned off. To prevent
dama
e to the unit, disconnect the power cord from the power
source or the unit before be
innin
disassembly procedures.
Num Lock LED flashin
reen.
Memory error.
Caps Lock LED flashin
reen.
No video.
Scroll Lock LED flashin
reen.
System board failure, prior to video.
Power LED
lows
reen.
Computer is on.
Audible. 1L 3S.
System ROM is bad; system is runnin
in FailSafe Boot Block
Mode.
Audible. 2S.
Power-ON successful.
Continued on Pa
e 2-10,
Error Messa
es, Part 2.
Notes:
Short (S) and lon
(L) beeps will only be
heard if the system has a speaker.
LEDs will only function on PS/2 keyboards, not USB.
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