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HP Master
6,826 Answers
- Posted on Dec 13, 2011
Re: My HP D530C does not power on. The power LED flashes...
HP xw6200 Workstation - Diagnostic LED Code: Four Flashes
ISSUE:
When the workstation is powered on, the front LED
might flash red four times, once per second, followed by a two second
pause.
SOLUTION:
The front LED flashing four times is a sign of a
power failure.
To fix this issue, complete the following
steps:
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Open the access panel, and check to see if the
four-wire power supply cable is properly connected to the system board.
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There may be a faulty device. Locate it by removing
all devices and then reinstalling them one at a time until the workstation
fails. Replace the device causing the failure. Continue adding devices to ensure
all are functioning properly.
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Verify the power supply functionality, as
follows:
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Disconnect AC power.
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Remove all internal power supply cables from the
system board.
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Plug in AC power.
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If the power supply fan spins, and the BIST
LED illuminates, then the power supply is good. Replace the system board.
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If the power supply fan does not spin, or the
BIST LED does not illuminate, replace the power
supply.
Thanks for your advice. The power supply fan does not spin, but the LED still flashes 4 times.
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