Computer is cool, but shuts down automatically after some time.

[Baekgaard]

I have been using my computer for almost 3 years now, and just recently it shuts down after 2 hours of watching in youtube, sometimes a light tap in the desktop would also trigger the shutdown. After thr shutdoen, it would take some time to boot up. The component which is the hottest is the psu, but its no near dangerous I think because i have felt a very hot psu. So, its either my motherboard or my psu is broken, am i right?

 

[Aeacus]

What's your full specs, including PSU make and model (or part number)?

 

[Baekgaard]

I cant give you my full specs right now, i could givr you some specs but not that accurate.

650 watt psu
Gigabyte mb
1gb radeon gpu
8gb furyx ram
I5 4400 mhz
2 external fans (intake and exhaust)

 

[Aeacus]

Do look up your PSU make and model.

My best guess is that your PSU (which build quality i can't confirm), shows it's age and that's the reason why you'll get only 2 hours out of your PC.

Just in case, what's your CPU/GPU/MoBo temps when browsing?

 

[Baekgaard]

I thi k the temperatures are ok because the computer shuts down after 2 hours of use which regularly, I could use it at 1 day the most.

 

[Baekgaard]

Hi! So the model of the psu is elextron atx-600w(I have spread wrong information, I should make it up)

 

[Aeacus]

Searched the net and didn't find any info about your Electron ATX 600W PSU. No OEM, no rail layout, nothing. Only thing i did find was a picture about it.
Usually, when there's no specs on the net, the PSU is terrible quality unit.

Here, i suggest you replace your PSU. 2 reasons for that:
1. Your aged PSU can't keep your system running more than 2 hours.
2. I wasn't able to confirm it's build quality. The lack of info about it suggests it's terrible quality PSU and it shouldn't be used at all.

For new PSU, i suggest good quality Seasonic PSU, in 500W range,
pcpp: http://pcpartpicker.com/products/compare/TgW9TW,gYMFf7,fZyFf7,DPCwrH/

If you want to know what's the differences between S12II, M12II EVO, S12G and G-series then i can list them too.

All my 3 PCs: Skylake, Haswell and AMD are also powered by Seasonic. Full specs in my sig. (Got PRIME series in Skylake, M12II EVO series in Haswell and S12II series in AMD.)

Just in case, what's the model of your Radeon GPU? So that i can confirm if 500W range PSU is enough for your system.
E.g GPU in my AMD build is also 1GB Radeon while the model is HD 7770 Ghz Edition.

 

[Baekgaard]

Yep! We have the same gpu!

 

[Aeacus]

Radeon HD 7770 Ghz Edition is 80W GPU and 500W range PSU is more than enough for it. Your system will do fine even with 400W range PSU. But you can go with suggested 500W range PSU, just in case you plan to upgrade your GPU to something beefier (e.g GTX 1060).

My S12II-520 has powered my AMD build for over 3 years now and PSU is still going strong. S12II-520 is a good PSU to have. Only drawback is that it's fully wired and cable management is a nice headache. If you want to get better cable management, go for M12II-520 EVO (fully modular) or G-550 (semi-modular) PSU.