Pc won't turn on but motherboard lights up

[Symylar]

I need help, my pc was working perfectly fine until one day I pressed the on button and it just didn't turn on. The motherboard lights are on meaning that the power is reaching fine, but it just doesn't turn on. I thought it was the power supply as it was very old so I bought a new one and installed it, but the same thing happens

[Bad 💀 Motha]

Publicado originalmente por PapiSymylar:

Publicado originalmente por Bad 💀 Motha:

No.... what model of motherboard and cpu are you using, is the question.

You never listed your pc specs, so we can't help otherwise.

Oh, mobo is asus prime a320m-k and cpu is amd ryzen 5 2600

Yea those MB don't support that cpu. Those are for Athlon and Ryzen 1xxx series.

Get a decent B450 / B450M board

[Jasper]

Publicado originalmente por Bad 💀 Motha:

Publicado originalmente por PapiSymylar:

Oh, mobo is asus prime a320m-k and cpu is amd ryzen 5 2600

Yea those MB don't support that cpu. Those are for Athlon and Ryzen 1xxx series.

Get a decent B450 / B450M board

This motherboard does support the ryzen 5 2600, according to the manufacturer's website.
Besides that his rig has been working fine, as he stated in his post.

[Symylar]

Publicado originalmente por Jasper:

Publicado originalmente por Bad 💀 Motha:

Yea those MB don't support that cpu. Those are for Athlon and Ryzen 1xxx series.

Get a decent B450 / B450M board

This motherboard does support the ryzen 5 2600, according to the manufacter's website.
Besides that his rig has been working fine, as he stated in his post.

Exactly, I've been running this rig for 2 months without any problems, it just suddenly stopped working

[Jasper]

Publicado originalmente por Snow:

Also try removing all the memory sticks and put them one by one, in different slots as well, trying to launch PC in every possible memory configuration. The issue you have was already how one of my memory slots died, single channel since then.

Have you tried this? ^

Also have you checked all of your cable connections?

It's hard for us to judge what the problem is across a forum.
Since you have your mobo + cpu for 2 months, i find it hard to believe something would be wrong with those parts (could always be possible though).
Im sure everyone here wants to help you but the eassiest and fastest thing for you would probably be visiting a computer specialist purely for a diagnose, if that's still possible considering covid-19.

[Symylar]

I have tried that, I've tried everything I can think of. I think this is probably something that requires professional help, but that isn't possible for me in my country given the situation with covid-19. But I think I will just wait until lockdown ends, because I'm all out of ideas. Thank you all for your help and suggestions

[r.linder]

Publicado originalmente por PapiSymylar:

I need help, my pc was working perfectly fine until one day I pressed the on button and it just didn't turn on. The motherboard lights are on meaning that the power is reaching fine, but it just doesn't turn on. I thought it was the power supply as it was very old so I bought a new one and installed it, but the same thing happens

1. What does the CPU fan do? Does it turn on and then immediately turn off once, or does it repeatedly start up and then stop?
I've had an AMD board die on me in a way where the CPU fan would just repeatedly start and stop without actually booting, and it worked fine whenever I unplugged power to the CPU. That time, it was the motherboard, because I put the CPU in another motherboard and it worked without issue. Given that this is an A320, I wouldn't be surprised because the quality is lesser than dirt. I would get an ASRock B450M Pro4 or Gigabyte B450M-DS3H.

2. Are the standoffs installed? Could be a short if the motherboard only started touching the metal of the case only now.

[chiefputsilao✖️ping]

does not turn on or just NO MONITOR DISPLAY?

if the motherboard lights are on, then the PC is turned on.

recheck, unplug/replug your video cable (hdmi, dvi, display port, etc)) to and from the gpu, use other video ports, use spare video cables.

[Snow]

You know, there have been comments about your board being a bit too low for your CPU, so here's another thing to try. Unplug the 4-pin CPU power supply, but do connect everything else, then plug in the power cord and try to start the PC this way. If it's indeed the issue of weak VRM which simply died - PC will at least start, won't show image, but everything will look like it's working. I've had a lot of motherboards with dead mosfets and that's how I knew VRM is the issue on an exact board.

[Symylar]

Publicado originalmente por Escorve:

Publicado originalmente por PapiSymylar:

I need help, my pc was working perfectly fine until one day I pressed the on button and it just didn't turn on. The motherboard lights are on meaning that the power is reaching fine, but it just doesn't turn on. I thought it was the power supply as it was very old so I bought a new one and installed it, but the same thing happens

1. What does the CPU fan do? Does it turn on and then immediately turn off once, or does it repeatedly start up and then stop?
I've had an AMD board die on me in a way where the CPU fan would just repeatedly start and stop without actually booting, and it worked fine whenever I unplugged power to the CPU. That time, it was the motherboard, because I put the CPU in another motherboard and it worked without issue. Given that this is an A320, I wouldn't be surprised because the quality is lesser than dirt. I would get an ASRock B450M Pro4 or Gigabyte B450M-DS3H.

2. Are the standoffs installed? Could be a short if the motherboard only started touching the metal of the case only now.

The cpu fan does nothing, I press the on button and nothing happens. Also the standoffs are installed

[Symylar]

Publicado originalmente por chiefputsilao✖️ping:

does not turn on or just NO MONITOR DISPLAY?

if the motherboard lights are on, then the PC is turned on.

recheck, unplug/replug your video cable (hdmi, dvi, display port, etc)) to and from the gpu, use other video ports, use spare video cables.

No, when I say that the motherboard lights are on I mean the standby lights which are on 24/7 as long as there is power going into the pc, regardless of whether the pc is on or off. The pc is definitely OFF, as none of the other lights are on and none of the fans are spinning

[Symylar]

Publicado originalmente por Snow:

You know, there have been comments about your board being a bit too low for your CPU, so here's another thing to try. Unplug the 4-pin CPU power supply, but do connect everything else, then plug in the power cord and try to start the PC this way. If it's indeed the issue of weak VRM which simply died - PC will at least start, won't show image, but everything will look like it's working. I've had a lot of motherboards with dead mosfets and that's how I knew VRM is the issue on an exact board.

I just tried and still nothing, it's as if the pc is just dead, the only thing that works are the motherboard lights, which come on as soon as I plug in the power cord and flick the power switch

[emoticorpse]

Try a heat reflow or whatever it's called by powering it on while running a blow dryer in the back of the PSU to give it a jump start (don't have it too close)

[Masque]

Try:

Take out all the RAM except one stick. Turn it on. It should POST, (beep once), and then should turn on.

Turn it off again.

Put all your RAM sticks back in. Works for me whenever that happens, which is twice now in the last three years it's done that.

[CravenCoyote]

I had a similar issue once - the power switch died. On motherboard, switched power button with reset button to turn system on and off which worked.

Could also be a trapped power switch cable which has happened to me in the past.

[skef]

Publicado originalmente por PapiSymylar:

I need help, my pc was working perfectly fine until one day I pressed the on button and it just didn't turn on. The motherboard lights are on meaning that the power is reaching fine, but it just doesn't turn on. I thought it was the power supply as it was very old so I bought a new one and installed it, but the same thing happens

did you plug it into the gpu or motherboad