Question about HP Bestec ATX-250-12ZD 250w HP Pavillion Zinfandel Power Supply Part 5187-1098 (ATX25012ZD) Power Supply
Computer won't boot up, the green light on the power supply on back of desktop just flashes.
The described problem might not be the Power Supply Unit, there are a number of different reasons that may cause this symptom. Consulting HP would be advisable.
Posted on Jan 30, 2006
I have the same problem. I found this on HP's website. Give it a shot. I hope this works for you (and me).
Posted on Feb 23, 2008
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Jun 17, 2012 | System Power Supplies
Test your PSU or replace it if your power supply units fan is not working your PSU is faulty
One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive
Test all leads that attach to your hard drive including electrical extensions,IDE,SATA
the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they are probably old and faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error
hope this will help
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