New Computer Freezing

[Polichronian]

I recently baught some computer parts and made my own computer.When i first built it,it would freeze and stay like this until i powered it off with the button,the hard drive led was also off during the freeze period.I defragged the disk and it was running fine for quite a while,but after some time,while playing games like LoL and CS:GO the computer would freeze again.Sometimes it froze for 5 seconds and the screen signal turned off and on and it would work fine,sometimes it would freeze completely and i would have to restart it with the button.I ve been also getting some blue screens,ntoskrnl.exe,dxgmms2.sys,watchdog.sys,atikmdag.sys,dxgkrnl.sys while playing Hearthstone or just watching a youtube video.I have defragged the disk numerous times,ive done the sfc /scannow,the memtest86,i ve run benchmarks for both cpu and gpu and they were working perfectly,temps are always below 65,i ve wiped and reinstalled my gpu drivers.Any help is greatly appreciated.Thank you

 

Specs:

Mobo:z97 anniversary

Cpu:pentium g3258 @4.2ghz

Ram:8gb of hyperx 1866mhz

Gpu:Xfx rx 460 4gb

Psu:A cx430 that used to be in my old pc for a year

Hdd:a random 300gb hdd that was also in my old pc

 

[Electronics Wizardy]

run memtest 86+

try it with linux

[Christopher_]

Your overclock might be unstable, as recommended run memtest and the cup stresstest for a couple of hours.

if unstable give some more juice.

[Cyracus]

if you installed win7/8 and upgraded to 10 upgrading caused a similar issue on my computer, old OS files stuck in core stuff borked things out. Clean install fixed it. Otherwise if you've done any registry tweaks it could be that as well. bad overclock also sounds possible

[Polichronian]

i run memtest86 for two hours and it had no problems,i have done a fresh install of windows 10 and i overclocked using the pentium anniversary boost of the mobo.tries to play league now.both games during the second minute the screens turns black but the sound keeps playing and then it turns on again.

[Polichronian]

UPDATE:I turned off the cpu thermal throttling of the mobo and i tried to play some CS:GO

First two games were running fine,no lags or freezes.During the third game my screen blacked out and after a minute it blacked out again and my ping went to 1000.After that it was running fine.I also upped the cpu voltage to 1.3

[0x1e]

29 minutes ago, Polichronian said:

UPDATE:I turned off the cpu thermal throttling of the mobo and i tried to play some CS:GO

First two games were running fine,no lags or freezes.During the third game my screen blacked out and after a minute it blacked out again and my ping went to 1000.After that it was running fine.I also upped the cpu voltage to 1.3

Are you getting notified that a GPU driver has crashed?

[Polichronian]

3 hours ago, 0x1e said:

Are you getting notified that a GPU driver has crashed?

The blue screens were gpu crash related but i reinstalled my drivers and i havent had a problem with it since,the screens just black out for a few seconds and they turn on again,it doesnt give me bsod anymore

[0x1e]

9 hours ago, Polichronian said:

The blue screens were gpu crash related but i reinstalled my drivers and i havent had a problem with it since,the screens just black out for a few seconds and they turn on again,it doesnt give me bsod anymore

I once had this.

I RMA'ed the GPU and the problem was solved.

 

So try another GPU if possible.