HP Xw4300 HP xw Workstation series Setup and Troubleshooting Guide - Page 49

Basic troubleshooting, Diagnostic lights and audible codes - ram

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Table 5-3 Diagnostic lights and audible codes Activity Possible cause Recommended action Green Power LED On. No Workstation on. beeps. Green Power LED blinks every two seconds.** No beeps. Workstation in Suspend to RAM mode (select models only) or normal Suspend mode. Green Power LED is off.** Workstation in Suspend to No beeps. Disk or "Hibernate" mode. None Green Power LED blinks three times, once per second.** No beeps Workstation in Suspend to RAM mode (select models only) or normal Suspend mode. Green Power LED blinks four times, once per second.** No beeps. Workstation in Suspend to Disk or "Hibernate" mode. NOTE: ** - The BIOS option you select controls the green LED function during these suspend modes. For the following LED activity and beeps, the beeps are heard through the chassis speaker. Blinks and beeps repeat for 5 cycles, after which, only the blinks continue to repeat. Red Power LED blinks two times, once every second, followed by a two-second pause. Two beeps. Processor thermal CAUTION: Internal components might be powered even when the protection activated by either system is off. To prevent damage, disconnect the workstation power cord of the following methods: before you remove a component. ● A fan might be blocked 1. Ensure that the workstation air vents are not blocked and the cooling or not turning. fan is running. ● The heatsink and fan 2. Open the access panel, press power button, and verify that the assembly is not processor fan is spinning. If the processor fan is not spinning, make properly attached to the sure the fan cable is plugged into the system board header. Ensure processor. the fan is fully and properly seated or installed. 3. If fan is plugged in and seated properly, but is not spinning, the problem might be in the processor fan. Contact HP for assistance. 4. Verify that the fan assembly is properly attached. If problems persist, there might be a problem with the processor heatsink. Contact HP for assistance. Red Power LED blinks three Processor not installed (not 1. Verify that the processor is present. times, once every second, an indicator of bad followed by a two-second processor). 2. Reseat the processor. pause. Three beeps. Red Power LED blinks four times, once every second, followed by a two-second pause. Four beeps. Power failure (power supply CAUTION: Internal components might be powered even when the is overloaded) system is off. To prevent damage, disconnect the workstation power cord before you remove a component. 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) ENWW Basic troubleshooting 43

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Table 5-3
Diagnostic lights and audible codes
Activity
Possible cause
Recommended action
Green Power LED On. No
beeps.
Workstation on.
None
Green Power LED blinks
every two seconds.** No
beeps.
Workstation in Suspend to
RAM mode (select models
only) or normal Suspend
mode.
Green Power LED is off.**
No beeps.
Workstation in Suspend to
Disk or “Hibernate” mode.
Green Power LED blinks
three times, once per
second.** No beeps
Workstation in Suspend to
RAM mode (select models
only) or normal Suspend
mode.
Green Power LED blinks
four times, once per
second.** No beeps.
Workstation in Suspend to
Disk or “Hibernate” mode.
NOTE:
** — The BIOS option you select controls the green LED function during these suspend modes.
For the following LED activity and beeps, the beeps are heard through the chassis speaker. Blinks and beeps repeat for 5 cycles, after
which, only the blinks continue to repeat.
Red Power LED blinks two
times, once every second,
followed by a two-second
pause. Two beeps.
Processor thermal
protection activated by either
of the following methods:
●
A fan might be blocked
or not turning.
●
The heatsink and fan
assembly is not
properly attached to the
processor.
CAUTION:
Internal components might be powered even when the
system is off. To prevent damage, disconnect the workstation power cord
before you remove a component.
1.
Ensure that the workstation air vents are not blocked and the cooling
fan is running.
2.
Open the access panel, press power button, and verify that the
processor fan is spinning. If the processor fan is not spinning, make
sure the fan cable is plugged into the system board header. Ensure
the fan is fully and properly seated or installed.
3.
If fan is plugged in and seated properly, but is not spinning, the
problem might be in the processor fan. Contact HP for assistance.
4.
Verify that the fan assembly is properly attached. If problems persist,
there might be a problem with the processor heatsink. Contact HP
for assistance.
Red Power LED blinks three
times, once every second,
followed by a two-second
pause. Three beeps.
Processor not installed (not
an indicator of bad
processor).
1.
Verify that the processor is present.
2.
Reseat the processor.
Red Power LED blinks four
times, once every second,
followed by a two-second
pause. Four beeps.
Power failure (power supply
is overloaded)
CAUTION:
Internal components might be powered even when the
system is off. To prevent damage, disconnect the workstation power cord
before you remove a component.
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)
ENWW
Basic troubleshooting
43