HP NV517UT Maintenance & Service Guide: Compaq 500B and 505B Minitower Bus - Page 70

LED Codes, The following table describes the LED states for the Compaq 500B and 505B MT Desktop PCs. - mt ram

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Table B-1 Diagnostic Beep Codes (continued) Beeps Diagnosis Recommended action 4 short beeps, 3 second pause Flashing operation has failed (checksum error, corrupted image, etc.) 1. Verify the correct ROM. 2. Flash the ROM if needed. 3. If an expansion board was recently added, remove it to see if the problem remains. 4. Clear CMOS. 5. If the message disappears, there may be a problem with the expansion card. 6. Replace the system board. 5 short beeps, 3 BIOS recovery was successful second pause No action required. LED Codes The following table describes the LED states for the Compaq 500B and 505B MT Desktop PCs. LED Power LED Indicator Drive LED Indicator State System on (normal operation) Suspend to RAM Computer off Normal hard drive activity LED Status Steady green Blinks green every 2 seconds LED not on Green drive LED is flashing 62 Appendix B Diagnostics

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Beeps
Diagnosis
Recommended action
4 short beeps, 3
second pause
Flashing operation has failed
(checksum error, corrupted image,
etc.)
1.
Verify the correct ROM.
2.
Flash the ROM if needed.
3.
If an expansion board was recently added, remove it to see if
the problem remains.
4.
Clear CMOS.
5.
If the message disappears, there may be a problem with the
expansion card.
6.
Replace the system board.
5 short beeps, 3
second pause
BIOS recovery was successful
No action required.
LED Codes
The following table describes the LED states for the Compaq 500B and 505B MT Desktop PCs.
LED
State
LED Status
Power LED Indicator
System on (normal operation)
Steady green
Suspend to RAM
Blinks green every 2 seconds
Computer off
LED not on
Drive LED Indicator
Normal hard drive activity
Green drive LED is flashing
Table B-1
Diagnostic Beep Codes (continued)
62
Appendix B
Diagnostics