[Computer problem] Sudden huge performance drop - Help appreciated!

LekkerBeest

Commendable
Feb 27, 2016
7
0
1,510
Hello! I'll get straight to the point. My pc has been functioning incredibly poorly all of a sudden when it comes to gaming. While I used to be able to play The Witcher 3 on ultra settings without problems, now I can't even play a game as simple as runescape smoothly anymore.

I believe the problems might have started occurring about a week ago. That week I had my first crash ever. The kind of crash that makes your screen turn black and asking you to reboot. This happened while playing The Witcher 3, doing nothing out of the ordinary. Then, 2 days later my computer crashed again, but this time while watching youtube, without anything else open. 2 more days passed and I started noticing that I started having incredibly low fps while gaming, compared to how it was before.

Naturally, I started googling my problems and started trying all of the possible solutions, however nothing seemed to help so far. So now I ask you to help me out!

The things I have tried so far:
- running ccleaner - it came up with about 200 problems, fixed all of them
- running malwarebytes - came up with about 500 problems, fixed all of them
- ran a virus scan with AVG - no viruses detected
- ran a "performance boost" with AVG tuneUp - fixed about 200 problems
- used CPUID to check on my temperatures - GPU never even went above 60 degrees C
- tried to use MSI afterburner to overclock my GPU. Only tried pretty safe changes as I'm unexperienced with this. No result
- deleted old programs that I didn't use anymore, made some more space on my computer
- updated my GPU drivers to the latest version

This is the setup I use:
- Windows 7
- Cooler Master K-380 Advanced 3.0
- intel® Core™ i5 4460 3.2 GHz,
- MSI H81M-E34
- Crucial Ballistix Sport 12GB DDR3-1600
- Nvidia GTX 960 2GB
- SSD Crucial BX100 120GB
- 500 Watt Cooler Master voeding

I may have forgotten to add a few things that don't come to mind right now. Thanks in advance! Feel free to ask questions if I need to provide more details or something.
 

BadAsAl

Distinguished
Check event viewer and see if any errors are recorded under Windows Logs> Applications and also check System.
I would use BlueScreenView from Nirsoft to look to see if you actually had a blue screen. It tells you which file caused the blue screen if that is what is happening.
 

LekkerBeest

Commendable
Feb 27, 2016
7
0
1,510
I found 3 critical errors, they are on dates that I think my crashes happened. the errors are basically saying that the pc turned off incorrectly. as for the other errors I found, there are a few errors that just keep repeating, but they have been there since november. that's as far as it still has logs. Bluescreenview didn't show me anything, so I guess I didn't really have blue screen crashes then?
 

BadAsAl

Distinguished
If you are blue screening then it is not writing a dump file for BlueScreenView to pull up.
Under Advanced System Settings > Advanced tab > Startup and Recovery, is write an event to the system log checked?
You can also uncheck automatic restart and it might keep the error on screen long enough for you to see it.
I am thinking RAM might be the next thing to test. Have you done any RAM testing?
 

LekkerBeest

Commendable
Feb 27, 2016
7
0
1,510
write an event to system log is checked indeed. I haven't done any RAM testing. The only thing I checked was to see if the processor speed isn't underclocked. It says 3.20GHz twice, so I guess that's normal.
 

LekkerBeest

Commendable
Feb 27, 2016
7
0
1,510
I have just noticed something while trying to figure out what's wrong by myself. While using CPUID hardware monitor, I played WoW for a few minutes and noticed that all 4 of my cores went to near 100% utilization and all of the voltages remained at 0V all the time. Could this be a problem?
 

Aayushraj

Commendable
Mar 12, 2016
1
0
1,510


clearly a gpu issue , try to benchmark its performance
 

ShadyOrb09

Reputable
Feb 11, 2015
253
0
4,810


Hello, this is hard to detect the issue because when a PSU starts failing it makes it look like all the other parts are failing too because of the power loss. Luckily, I have had the same issue and I'm not exactly 110% sure that this is your issue, but I'm pretty damn positive.

Make sure you run a virus scan! You never know, some viruses are tricky, though I doubt they'd cause this issue.

I'd recommend not using this PC further until you get a new PSU. It'd be dangerous for the parts inside. I got a really nice modular 850W one for about $140. Let me know if you want the info on it, I'll try to find a link to it.
 

LekkerBeest

Commendable
Feb 27, 2016
7
0
1,510
Is there any way to be sure that the problem is my PSU? I'd rather not buy new parts without being 100% sure. I ran a few virus scans over the past few days and they didn't detect any problems.
 

ShadyOrb09

Reputable
Feb 11, 2015
253
0
4,810


I'm pretty sure dude, but if you want to be completely 100% sure I'd recommend reinstalling Windows just in-case.
Also, try turning off your overclock.
What games do you play?