HP D530 SFF screeching noise from mobo on startup, led blinking \ VOGONS

HP D530 SFF screeching noise from mobo on startup, led blinking

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First post, by kotel

Posted on 2024-03-24, 12:10

kotel Offline

Rank Newbie

Rank: Newbie
Posts: 79
Joined: 2024-02-15, 14:58

I recently got this HP D530 SFF pc. After replacing 4 1000uf caps and checking the psu, i decided to turn it on. Was greeted with an screeching noise when turned on from mobo and 3 red LED blinks, followed by 4 red LED blinks, then 4 blinks forever. No beeps. Any ideas?
EDIT: I forgot to add that the board is still somewhat covered in fire extinguisher dust. Might that be the issue?

Reply 1 of 1, by kotel

Posted on 2024-03-28, 13:00

kotel Offline

Rank Newbie

Rank: Newbie
Posts: 79
Joined: 2024-02-15, 14:58

Tested the board with an bequiet PSU but still same issue. After shorting ps_on with ground pins on the hp power supply, it turns on for a second then dies. Any ideas?

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