Why Won’t My New Motherboard Boot Up?

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Asked By TechMaster42 On

I just installed a new Z790 Tomahawk motherboard, but I'm having trouble getting it to boot. I've connected the 24-pin and the two 8-pin connectors from the PSU, but nothing happens when I try to power it on. I did a PSU paperclip test, and that works fine, so it's not the power supply. I also checked the CPU seating and noticed a few pins that look a bit off. Could this be why it won't boot? I've disconnected all fans and extra cables, and even tried jumping the JFP1 power pins with a screwdriver, but still no luck. Here are some images showing the CPU pins and a different angle of the motherboard for reference: [Image1](https://tinypic.host/image/WhatsApp-Image-2025-05-08-at-13.06.24-5c6d0ba4.3U2LXv), [Image2](https://tinypic.host/image/WhatsApp-Image-2025-05-08-at-13.09.15-a1a920c2.3U2bew)

2 Answers

Answered By ElectroWizard77 On

You shouldn't have any bent pins on your CPU. If you see any, it's best to exchange the motherboard for a new one. Those bent pins can definitely cause boot issues.

ConfusedAsEver -

Sigh. So they are bent? Bended pins can cause faulty MB?

Answered By GearHead99 On

I've only dealt with bent pins on AMD AM5 CPUs, but for any motherboard, I recommend returning it if there's a possibility of damage. If they give you a hard time about it, just stand your ground and explain the situation.

TechMaster42 -

Yeah, makes sense. I'm not sure yet if it's really the motherboard. I’ll test some other components to confirm. Just frustrating because I wanted to get everything set up today.

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