Whole PC lags after ~30 minutes

dutchobama · Jul 5, 2014

A couple of days ago I posted a thread on this forum about my PC lagging after about thirty minutes.
My power supply was only 400 Watt and I was told to upgrade it to at least 550 Watt from Tier 1 or Tier 2, so I bought the Sea Sonic S12II-620 Bronze, which is 620 Watt.

Though earlier today my PC started lagging again after a while and I do not know how to fix this.

The temperatures:
http://i.imgur.com/9C5Vd45.png

System specs:

OS: Windows 8 Pro 64-bit (6.2, build 9200)
CPU: AMD FX-6300, 6 cores ~3.5GHz
Memory: 8gb Ballistic
GPU: AMD Radeon HD 5850

chimera201 · Jul 5, 2014

Download AMD Overdrive and check Thermal Margin for CPU under load. Run Prime95 for load testing

dutchobama · Jul 5, 2014

chimera201 :

This is what you wanted?
http://i.imgur.com/WLqa9lK.png

I just started a game and it started lagging after about 5 minutes. The thermal margin is fluctiating between 23 and 27 degrees.

Oh and the Prime95 thing:
http://i.imgur.com/Fs0Gy3o.png

chimera201 · Jul 5, 2014

dutchobama :

No I said do both things at same time. The thermal margin is at 8% load. I want the readings at 100% load which should be achieved by running prime95

dutchobama · Jul 5, 2014

chimera201 :

dutchobama :

No I said do both things at same time. The thermal margin is at 8% load. I want the readings at 100% load which should be achieved by running prime95

Oops, my bad..
Here you go: http://i.imgur.com/PYts1bk.png

chimera201 · Jul 6, 2014

Hmm seems to be ok. What case do you have? Can you try testing with the case open? And are you using the stock cooler?

dutchobama · Jul 6, 2014

chimera201 :

I don't know what case I have, and I am running my PC with the case open right now.
And yes I am using the cooler that came with my CPU.

chimera201 · Jul 6, 2014

For how much minutes did you run Prime95 the last test

dutchobama · Jul 6, 2014

chimera201 :

A few minutes only. Do you want me to run it longer? If so, when my PC is lagging or when it's running fine?

chimera201 · Jul 6, 2014

Yes i want to see the Thermal Margin when your PC starts lagging

dutchobama · Jul 6, 2014

chimera201 :

That's this one, which I showed you before:
http://i.imgur.com/PYts1bk.png

chimera201 · Jul 6, 2014

dutchobama :

It started lagging there?
Edit: Wait running prime95 is going to make your pc lag anyways. Just run it longer and see if thermal margin decreases

dutchobama · Jul 6, 2014

chimera201 :

No that's when it was lagging for about 10 minutes and I started Prime95 like 3 minutes before taking that screenshot.

dutchobama · Jul 6, 2014

Sorry for the bump, but can anyone else help me?

chimera201 · Jul 6, 2014

Your CPU is probably overheating or it could be a Windows 8 issue. If you can afford get an aftermarket CPU cooler

dutchobama · Jul 6, 2014

chimera201 :

I can't afford yet another upgrade for my PC.
Do I need to apply more thermal paste? Or is there anything else that can fix this?

chimera201 · Jul 6, 2014

Applying thermal paste is the best you can do then

dutchobama · Jul 6, 2014

It literally just started lagging and I found this:
http://i.imgur.com/DzMSk44.png

Maybe it's not my CPU but my GPU?

chimera201 · Jul 6, 2014

What makes you think the GPU could be a problem. 69C is too good for GPU under load.
It is probably the CPU overheating or It could be some problem with Win 8 or maybe you have a virus. I don't have Win8 so i can't advise you on Win8

EliteMKD · Jul 6, 2014

clean your heatsinks on cpu and gpu appy thermal grease and you are good to go.

dutchobama · Jul 7, 2014

My screens just went black for like 3 seconds, so I do think it's my GPU. Is it broken or something? Because the heatsinks are still clear (only placed them 5 days ago).

Update:
Cleared the heatsinks just to be sure, applied thermal paste, but it's still lagging.
I think it only starts to lag when I'm playing a game for around five minutes.

dutchobama · Jul 8, 2014

Reinstalling windows seems to have done the trick.

Whole PC lags after ~30 minutes

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