PC wont power up

mattyj1085 · 16 Sep 2024 at 19:10

I was using my pc fine and rebooted to install latest updates, it's usually just left on all the time and now it won't power back on.

I've tried the paper clip trick on the PSU and that fires up still but when all reconnected and press the power button nothing happens.

No fans spin up or anything but the network light is flashing in the nic so I know the motherboard is getting power.

Any ideas what could have happened?

Do I need a new motherboard?

ED209 · 16 Sep 2024 at 19:18

Tried powering it up via the pins on the motherboard rather than the power button in case this is faulty?

What is the spec of the PC?

mattyj1085 · 16 Sep 2024 at 19:22

I've tried just joining the power button pins with a paper clip but not sure if that's right way to do it.
I'm going to see if I can find another button to test tomorrow.

mattyj1085 · 16 Sep 2024 at 19:22

It's a fairly old Asus micro board with 8gb DDR4 and intel CPU just used for web browsing mainly.

drakulton · 16 Sep 2024 at 19:33

Do you have a GPU fitted, if so, remove it and try to start the PC.

mattyj1085 · 16 Sep 2024 at 19:36

Had a GPU but already tried removing with no difference, I'm just taking the board out of the case now to see if it's shorting out somewhere.

freddie64 · 18 Sep 2024 at 08:21

How old is the PSU?

Just because the paperclip trick worked does not mean there is enough life left in it to run a PC.

iamdjdz · 18 Sep 2024 at 08:35

I had similar after my 2 year old kept smashing the power button, had to check PSU and power button and ended up replacing the motherboard (with a full rebuild in the end).

This guide is useful if you have a multimeter to test the PSU properly:

How to Test Your Computer's PSU With a Multimeter

Your handy multimeter can test so many things, including your PSU.

www.howtogeek.com

ED209 · 18 Sep 2024 at 11:01

iamdjdz said:
I had similar after my 2 year old kept smashing the power button, had to check PSU and power button and ended up replacing the motherboard (with a full rebuild in the end).

This guide is useful if you have a multimeter to test the PSU properly:

How to Test Your Computer's PSU With a Multimeter

Your handy multimeter can test so many things, including your PSU.

www.howtogeek.com

Handy site and easy to follow.

Just need a good multimeter now lol

Drumroll · 18 Sep 2024 at 11:27

As mentioned before, the PSU on its own may fire up, but if is faulty, won’t manage when feeding the system. Had this issue with an OCZ power supply and a Thermaltake, both ages ago.