PC is Semi-frozen (video inside)

BandarFHD

Prominent
May 13, 2017
2
0
510
Hi,
My PC is acting weird the last few days. After using the pc for 2 or 3 hours it suddenly slow down and most of the functions just stop working. I thought in the beginning it was a virus so I ran multiple antiviruses to look after the the virus but nothing was there.
So I decided to google it and saw many suggestions like checking the ram and the hdd but it was perfect no errors were there.
So at this point I thought maybe the problem is in windows itself so I formated the pc and reinstalled windows. But guess what? The problem is still there.
I can't open web pages and the pc is super slow and nothing happens whatever I do ( see this video of me using the pc when it happens https://youtu.be/J4M4bdyL7J4 ).
So at this point I gave up and I'm seeking help. Please see the video before commenting so you have an idea of what I'm talking about.
My rig:
CPU: i7 4790k (not oc)
GPU: GTX 980 MSI
Ram: 16 gb
MB: Gigabyte (don't know the model)
PSU: CoolerMaster 850W
SSD 250 GB for windows

I had this rig for a year now and it was perfect until today
PS: I vape and most of the vapor end up going to the pc as the air circles. Thought this might have to do with it.
Thanks in advance
 

BandarFHD

Prominent
May 13, 2017
2
0
510


Yes I opened it. It was very dusty tbh but I don't think it's from the vape. I just formatted the pc again with a usb stick and that didn't solve it so at this point I'm sure 100% it's one of the components but can't figure out which. The disks are perfect after smart tests and the rams were checked by windows memory diagnostic. And the PSU didn't shock me or anything when I checked it which I guess is a good sign. So at this point it's eather CPU, GPU or MB.
 

Carnaxus

Reputable
Apr 18, 2017
1,431
3
5,665
If it's very dusty, clean it out. Grab a can of compressed air at your local office supply or computer store, take the computer outside, open it up, and liberally blast the heck out of it until there's little to no dust left. Dust prevents good heat dissipation, which in turn leads to components overheating and either throttling back or straight up quitting.