Huge FPS drops when playing videogames. Any help?

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deadlymaul

Reputable
Jul 20, 2014
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4,510
Hello, I have encountered quite a weird problem when it comes to gaming. I have recently upgraded my PC (By adding an additional 4 GB ram and replacing the CPU with Q6600- original was an E3400 from Intel).
I have experienced huge FPS drops in quite few games since I have changed my specs, more specifically: GTA 5, CS:GO and DOTA 2. I played LoL to see if this happens but all went fine over there while on Minecraft it went fine aswell, but the huge FPS drop started after about 1-2 hours of continuous playing, while on the previously mentioned games it takes max 30 mins before it starts, depending on their requirements). The FPS drop doesnt last long tho (around 15-30 seconds until it returns to normal, but during that time, it is unplayable). RAM usage is doing fine, there's always around 3GB+ of available RAM left, but free RAM drops to 0-especially in the case of GTA 5. What I have observed is that the CPU usage gets ridiculuosly high when the FPS drops occur. CoreTemp indicated that the temp of the cores is normal, in between the recommended ranges but the Load was always at 100% during the drops. Does anyone know why does this happen and how could I fix it? PC was scanned with both Kaspersky and Malwarebytes, no viruses/malwares found to cause such a problem.

Here are my full PC specs:
8GB RAM Kingmax DDR3 1333Mhz
Intel Quad Core Q6600 2.4Ghz
Nvidia Geforce GTX650 2GB from ZOTAC
Motherboard MSI G41M-P26
Pretty basic CPU cooler, Deepcool CK-11509 styled but from different brand
A 450 W Power source and that's pretty much all that counts.

I have removed dust from PC about 2 weeks ago (When I updated its hardware) from everything, including the power source.
I think the problem might be the CPU, since I didn't have problems with CS:GO FPS drops back when I had the E3400, but why would it do that?

Thanks in advance.
 
Solution
basically if a psu is broken, it could be giving enough juice to power everything one minute but then the next minute it could be not giving enough power out, basically voltage spikes, if your psu was making noises before you really should have replaced it then as thats not a good sign. the power supply itself looks really cheap and tacky (no offence) and im surprised its still going at all.

check this list out for a few cheap psus that are branded and would be better for the job
https://uk.pcpartpicker.com/parts/power-supply/#sort=a9&page=1&X=0,5387&W=400,470
Good news, it was the PSU after all. After a few days of waiting for the new one to be delivered, I installed it with no problems (Got a 600W PSU at a promotion). I played GTA 5 for 2 hours straight, no FPS drops, same goes with CS:GO.
Thanks a lot!
 

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