Computer shuts down after 3 seconds

[Jason Porter]

The other day i went to boot up computer and it just shunut down after 3 seconds or so. Would do that for a few tries then work fine. So i stopped shutting down. Restarts worked ok but if i left off too long same problem. Today it shut down middle of using and now 3 second shut down. In that 3 seconds everything lights up and spins. All 6 case fans, cpu cooler fan attached to radiator, psu fan, gpu fans. I tried different plugs and noticed when i unplug epu cable ot doesnt shut down but doesn't fully boot. When inplug in shuts down.

Asus msa99fx pro r2.0 motherboard
Not sure cpu but it's the amd 8 core
Msi 970 gtx gpu
Thermaltake toughpower grand 1050w
16gb ram
Cooler master water cooler cpu.

System was built year ago and worked fine whole time

Oh i just noticed something. When working good i would hear a fan ramp up. Think psu? Now as soon as it starts to ramp up thats when it shuts down. Or no ramp at all. Im leaning towards psu but need help. Thanks

 

[Sohom]

Not worth it, checked the prices, its better to upgrade... You can give i5 or a Ryzen 3 a go....

 

[Jason Porter]

Upgrade board and cpu?

 

[Jason Porter]

Its 500+ for new cpu/mb wife gonna throat punch me of i do that

 

[Jason Porter]

Unless you know something i dont

 

[Sohom]

Its 500+ for new cpu/mb wife gonna throat punch me of i do that

what no, i can give you something under 100

 

[Sohom]

Check it out... https://pcpartpicker.com/products/motherboard/#c=17

 

[Jason Porter]

Awesome. Looks like ram will work too. Thanks

 

[Jason Porter]

So i got a short boot screen said cpu fan error. F1 to run setup but before i can do anything shuts down. Thing that's the issue or just from me unplugging stuff it said that?

 

[Sohom]

Cpu fan error points to something obvious. .. Now i can 100% guarantee its your mobo...

 

[Bo Lee]

The PSU is generally the most obvious culprit in a situation like that. But not always. My desktop was doing the same thing. My CPU cooling fan was bad. It would shut the computer down almost immediately. Hadn't had time to get hot, I guess the BIOS could tell that the fan wasn't there and would just shut down to protect the system.

 

[Jason Porter]

The PSU is generally the most obvious culprit in a situation like that. But not always. My desktop was doing the same thing. My CPU cooling fan was bad. It would shut the computer down almost immediately. Hadn't had time to get hot, I guess the BIOS could tell that the fan wasn't there and would just shut down to protect the system.

Did your radiator fan spin during this?

 

[Jason Porter]

Not the mobo. New one installed same issue

 

[Bo Lee]

The PSU is generally the most obvious culprit in a situation like that. But not always. My desktop was doing the same thing. My CPU cooling fan was bad. It would shut the computer down almost immediately. Hadn't had time to get hot, I guess the BIOS could tell that the fan wasn't there and would just shut down to protect the system.

Did your radiator fan spin during this?

My CPU fan did. But it was making a slight rattling sound and the RPMs was way low. In BIOS it showed the fan there and it was spinning, but as soon as I would go to boot up, it would shut down. Perhaps BIOS was detecting that the fan wasn't spinning near the RPM is should have been. I switched the fan out and it works fine ever since.

 

[Bo Lee]

Not the mobo. New one installed same issue

What power supply does your PC have?

 

[Jason Porter]

Thermaltake toughpower grand 1050w platinum

 

[Jason Porter]

I got it fixed. Installed new cpu cooler and all is well. Thanks for all your help. Got a new mobo out of it too. Wife thinks i sent it back.

 

[Bo Lee]

I got it fixed. Installed new cpu cooler and all is well. Thanks for all your help. Got a new mobo out of it too. Wife thinks i sent it back.

Good deal. Sometimes it is the simplest solution that we overlook. Happy gaming!