HP Xw8400 HP xw8400 Workstation - Service and Technical Reference Guide - Page 118

Chassis Indicator LEDs, Power LED and Sound, Activity, Diagnosis and Service Action, CAUTION - 5 beeps

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Table 5-2 Diagnostic LED codes (continued) Chassis Indicator LEDs Power LED and Sound Activity Diagnosis and Service Action Power supply failure. 1. Open the access panel and ensure the following connections are secure on the system board: ◦ 24-pin main power (all systems) ◦ 4-pin CPU (xw4000 series) ◦ 8-pin CPU (xw6000/xw8000/xw9000 series) ◦ 4-pin memory (xw8000/xw9000 series) 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 5 times, once per second, then 2 second pause, 5 beeps 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. Reseat DIMMs 2. Replace DIMMs one at a time to isolate faulty module 3. Replace third-party memory with HP memory. 4. Replace system board. Blinks red 6 times, once per second, then 2 second pause, 6 beeps 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. For systems with integrated graphics, replace the system board. For systems with graphics cards, perform the following steps. 1. Reseat the graphics card. 2. Replace the graphics card. 3. Replace the system board. Blinks red 7 times, once per second, then 2 second pause, 7 beeps. 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. 108 Chapter 5 System diagnostics and troubleshooting ENWW

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Chassis Indicator LEDs
Power LED and Sound
Activity
Diagnosis and Service Action
Power supply failure.
1.
Open the access panel and ensure the following connections are secure on the system
board:
◦
24–pin main power (all systems)
◦
4–pin CPU (xw4000 series)
◦
8–pin CPU (xw6000/xw8000/xw9000 series)
◦
4–pin memory (xw8000/xw9000 series)
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 5 times, once per
second, then 2 second pause,
5 beeps
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.
Reseat DIMMs
2.
Replace DIMMs one at a time to isolate faulty module
3.
Replace third-party memory with HP memory.
4.
Replace system board.
Blinks red 6 times, once per
second, then 2 second pause,
6 beeps
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.
For systems with integrated graphics, replace the system board.
For systems with graphics cards, perform the following steps.
1.
Reseat the graphics card.
2.
Replace the graphics card.
3.
Replace the system board.
Blinks red 7 times, once per
second, then 2 second pause,
7 beeps.
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.
Table 5-2
Diagnostic LED codes (continued)
108
Chapter 5
System diagnostics and troubleshooting
ENWW