Chassis Indicator LEDs
Power LED and Sound
Activity
Diagnosis and Service Action
Blinks red/beeps four
times, once per second,
then a two–second pause
CAUTION: Disconnect AC power from the workstation before reseating or
replacing components because there is power to the system board even
when the workstation is powered down.
Power supply failure.
1. Open the access panel and ensure the following connections are secure
on the system board:
◦
24–pin main power
◦
8–pin CPU
◦
4–pin memory
2. Locate faulty device by removing all devices and then reinstalling one
at a time until workstation fails. Replace the device causing the failure.
Continue adding devices to ensure all are functioning properly.
3. Verify power supply functionality.
a. Disconnect AC power.
b. Remove all internal power supply cables from the system board.
c. Plug in AC power.
●
If the power supply fan spins and the BIST* LED lights, then the
power supply is good. Replace the system board.
●
If the power supply fan does not spin or the BIST* LED does
not light, replace the power supply.
Blinks red/beeps five
times, once per second,
then two-second pause
CAUTION: Disconnect AC power from the workstation before reseating or
replacing components because there is power to the system board even
when the workstation is powered down.
Pre-video memory error.
1. Ensure DIMMs are loaded in correct slots.
2. Reseat DIMMs.
3. Replace DIMMs one at a time to isolate faulty module.
4. Replace third-party memory with HP memory.
5. Reseat CPUs.
6. Replace system board.
Blinks red/beeps six
times, once per second,
then a two-second pause
CAUTION: Disconnect AC power from the workstation before reseating or
replacing components because there is power to the system board even
when the workstation is powered down.
Pre-video graphics card error.
1. Ensure auxiliary power cable is connected if applicable (high power
graphics cards only).
2. Reseat the graphics card.
3. Replace the graphics card.
4. Replace the system board.
Table 6-2 Diagnostic LED codes (continued)
136 Chapter 6 System diagnostics and troubleshooting ENWW
To Next Page
Loading...
