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Boomer33
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BIOS issue

HP Recommended
OMEN by HP Obelisk Desktop 875-0014
Microsoft Windows 10 (64-bit)

So a while back I had an overheating issue, fixed that. Then I had a BIOS issue, updated that. Now my PC keeps cutting on and off without booting up, and it won’t stay on long enough for me to pull up any menu. I need to know if it’s a new part I need or what am I missing?

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itsmyname
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It is possible that the previous overheating issue has affected your motherboard, such that it shuts down.

With the computer powered-off, can you open the case on your desktop, and identify the fans (on top of the CPU, maybe one on the back of the case)?  then, when you power-on the computer, do the fans spin, or not?

 

Can you try temporarily using a different power-supply, to see if that is the current issue?

 

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Boomer33
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Yes all fans work, and after switching power supplies same issue.

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