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Troubleshooting Flowcharts for Desktop Computers
9. Error Messages, Part 2
1S 2L. Num Lock blinking.
System memory not present or incompatible.
Unplug, open computer, and check memory modules. Ensure memory modules
are correct type and that they match in size and speed.
1L 2S. Cap Lock blinking.
Video controller not present or incorrectly
initialized.
Ensure monitor is plugged in. Unplug, open computer, and check
video card. Reseat card and ensure it is in the proper expansion slot.
1L 3S. All keyboard LEDs blinking.
ROM Failure.
Create ROMPaq diskette and
reload ROM. Download ROMPaq from Compaq website at www.compaq.com.
2L 1S. Scroll Lock blinking.
System HW failure prior to video.
Unplug, open
computer, and check for physical damage. Ensure all cables and cards are seated.
Look for burn marks or smoke.
No beeps. HD and Power LED blinking.
Riser not detected.
Unplug, open
computer, and check and reseat riser board.
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.
Notes:
Short (S) and long (L) beeps will only be
heard if the system has a speaker.
LEDs will only function on PS/2 keyboards, not USB.
Summary of Contents for AP400 - Professional - 64 MB RAM
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