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HP 8300 won't start up, 4 beeps and 4 red lights observed.

Ask a question Dhonzzz - Last answered on Mar 16, 2017 at 10:29 AM by jawo
Hello,

I had a problem with my HP desktop. When I plug in the AC cord, I already hear beeps and red light flashing. And when I tried to power it on, nothing happened (no fan turning) so I believed it was a power supply issue. But when I replaced with a new PSU, same error occurred.

PLEASE HELP !!!!!..
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I'm sorry I meant a motherboard failure. I suggest you consult a repair shop.
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Dhonzzz 3Posts Wednesday October 19, 2016Registration date October 19, 2016 Last seen - Oct 19, 2016 at 05:24 AM
Oh NO!!!
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Hello

You are correct ! It is a power supply issue and it needs to be replaced.
Dhonzzz 3Posts Wednesday October 19, 2016Registration date October 19, 2016 Last seen - Oct 19, 2016 at 04:59 AM
I already replaced it with a new PSU but problem still persist. I also tried resetting the RAM by removing it on the slot. But same issue happened.
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Now I disconnected almost all connectors on my motherboard. What is left connected were wires from new PSU, internal speaker (to hear the beeps), processor heat sink fan, memory RAM and power button/LED connector. But same result.. 4 beeps and red light flashing... Even without pressing the power on button!!
jawo- Mar 16, 2017 at 10:29 AM
same problem here,pls help us sir
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