PC Master Race

15638 readers

41 users here now

A community for PC Master Race.

Rules:

No bigotry: Including racism, sexism, homophobia, transphobia, or xenophobia. Code of Conduct.
Be respectful. Everyone should feel welcome here.
No NSFW content.
No Ads / Spamming.
Be thoughtful and helpful: even with ‘stupid’ questions. The world won’t be made better or worse by snarky comments schooling naive newcomers on Lemmy.

Notes:

PCMR Community Name - Our Response and the Survey

founded 2 years ago

MODERATORS

[email protected]

[Solved] My PC suddenly won't turn on. Need help. (feddit.org)

submitted 1 week ago* (last edited 3 days ago) by [email protected] to c/[email protected]

13 comments fedilink hide all child comments

Hi there, hope this is the right place for something like this.

So today I used my computer like normal, everything was fine this morning.
Then after a brief walk I came home and it won't turn on since.
When I click the power button there is the normal click sound of the psu and nothing happens.
My keyboard lights up, the ethernet port lights up, but other than that - nothing. Already tried to remove the ram, the graphics card (just removing the power cable of it turns on its red light), removing just the cpu power cable does turn on the motherboars red status light, but non of the fans or other status leds light up.

My build is not new and other than the keyboard I did not change anything lately.
The build consists of:
Asus ROG Strix B550 A
Ryzen 5600x
32 GB Ram (Crucial ballistix)
Asus RTX 3060ti
Corsair RM650 PSU

I also unplugged the psu for a while. It makes a slight buzzy noise after powering the computer, but I do not know if this is normal.

Can anybody help me please?

Edit: Thank you all for helping, I installed a new psu and everything is working again! Thank you.

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 4 points 1 week ago* (last edited 1 week ago) (1 children)

I also unplugged the psu for a while. It makes a slight buzzy noise after powering the computer, but I do not know if this is normal.

I'd recommend starting with the PSU. A buzzing noise is not a good sign. This article has details on how you can test your PSU: https://www.howtogeek.com/172933/how-can-i-test-my-computers-power-supply/

You can perform a basic test with just a paper clip or a bit of 16 or 18 gauge wire.

It sounds like the PSU is giving some power, given that the keyboard lights up. The issue could be isolated to one or more rails, e.g. it's not delivering anything / enough on the 12V or 3.3V rail. I'm guessing 5V is OK since that's USB voltage and your USB keyboard gets power. You'd need a multimeter to check individual power pins on the PSU connector.

Edit: if you have access to a second PC, you can swap PSUs between them. If the problem follows the PSU then that's the faulty component. If the problem stays with the original PC then it's likely motherboard, CPU or RAM.

If you can determine that the PSU is OK then the next step is to try booting with the bare minimum amount of hardware. That's motherboard, CPU and one stick of RAM. If that won't boot then you try with a different RAM. If it still won't boot then the issue is motherboard or CPU. Before you replace either of those expensive components, try replacing the cheap CMOS battery as another poster recommended.

[–] [email protected] 3 points 1 week ago

Thanks, I did this test and it just clicks and buzzes, without fan movement. But I did throw away my old psu while moving and I may have to wait for next week.