
Quick Troubleshooting Guide 2-9
8. Error Messages Part 1
Power LED has no color showing. Computer is off.
Power LED blinks green 1x/second. Normal suspend mode.
Power LED glows red. CPU not installed/fetching 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 Lights,
or POST error messages.
Power and hard drive LEDs glow 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
damage to the unit, disconnect the power cord from the power
source or the unit before beginning disassembly procedures.
Num Lock LED flashing green. Memory error.
Caps Lock LED flashing green. No video.
Scroll Lock LED flashing green. System board failure, prior to video.
Power LED glows green. Computer is on.
Audible. 1L 3S. System ROM is bad; system is running in FailSafe Boot Block
Mode
Audible. 2S. Power-ON successful.
Continued on page 2-10, Error Messages, Part 2.
Click Here to Find Error Code
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