Compaq D315 - Desktop PC, Руководство по устранению неисправностей

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A–14 Troubleshooting Guide
Post Error Messages
POST Diagnostic Keyboard LEDs, Front Panel LEDs
and Audible Codes
This section covers the keyboard and front panel LED codes as well
as the audible codes that may occur during POST that do not
necessarily have an error code or text message associated with them.
✎
If your system is equipped with a Universal Serial Bus (USB)
keyboard, you may hear the beep sequences for some of the keyboard
light error codes, but you may not see the flashing keyboard lights.
Diagnostic Keyboard LEDS, Front Panel LEDs and Audible Codes
Activity Beeps Probable Cause Recommended Action
Flashing Caps
Lock LED on
Keyboard.
None Graphics controller not
present or incorrectly
initialized. 1. Clear CMOS. (See
Appendix B, “Password
Security and Resetting
CMOS.”)
2. If graphics card has been
added, remove and
reseat.
3. Reseat riser board if
applicable.
Flashing Num
Lock LED on
Keyboard (on
select models.)
None System memory not
present. 1. Check memory module
(see the relevant section
of the
Hardware
Reference Guide ).
2. Remove and reseat
memory module.
3. See the “Solving Memory
Problems” section of this
guide.
Ä
CAUTION : For those systems that support ECC memory, Compaq does not support mixing
ECC and non-ECC memory. Otherwise, the
Num Lock
LED on non-USB keyboards will blink
continuously, and the system will not boot the operating system. In addition, if a speaker
is installed in the system, there will be a short beep followed by 2 long beeps.
292974-002.book Page 14 Tuesday, July 9, 2002 5:46 PM