Random FPS drops

[Ps1d3r]

Hi there

About 1 month ago i started having random fps drops on CS GO for no apparent reason, from a normal 150/170 goes to 30/40/50 for a few seconds and goes back to normal.
I didn´t change any settings before this happened (on cs go or on the gfx)
I've searched for solutions online, tried a lot of things (including some from tomshardware 😛) with no results.
I had the previous gfx driver version, but i already updated, and the problem is still there.


Today i did a 15 minute stress test with FurMark and with CPUID HWMonitor open to log the results, but I'm no expert, and can't really tell if the results are acceptable.

I did a DPC latency test, everything was fine.

My PC specs:

Cooler Master Elite Power 500W
Asus B75M-PLUS
Msi Geforce GTX650 Over Clock Edition 2GB GDDR5
Kingston DDR3 HyperX FURY Black 4GBx2 1600MHz
Intel Core i3 - 3240 3.4GHz
Western Digital Caviar Blue 1TB 64MB SATAIII
Benq LED GL2460HM FullHD 2ms (24") 1920x1080

Windows 7 Home Premium X64

I have 2x 120 fan on the side of the PC case which i only activate when gaming (i installed 2 on/off switches on the front), i did not activate them for the stress test.

FurMark log: https://justpaste.it/furmarklog

CPUID HWMonitor log: https://justpaste.it/CPUIDHWMonitorlog

CPUID HWMonitor print screens:

Graphics card global settings:

Graphics card cs go settings:

In game cs go settings:

CPUID HWMonitor print screens after i played CS GO on Deathmatch server for 30/40 minutes:

I don't know what else i can post here that might be relevant...

Thanks in advance for any help


EDIT: Are the voltages on the screenshots normal?

 

[Darkoil]

Check your HD usage, if the read rate is hitting 100% it can cause random lag spikes, usually caused by stuff like antivirus programs.

 

[Ps1d3r]

Check your HD usage, if the read rate is hitting 100% it can cause random lag spikes, usually caused by stuff like antivirus programs.

How can i see it in %? On Windows Resource Monitor only shows KB/sec

 

[Darkoil]

I'm not an expert with windows 7 but in the resource manager there should be a graph for disk usage on the right hand side. if it reaches the top then it could indicate your hdd is reaching its limit.

 

[Ps1d3r]

I'm not an expert with windows 7 but in the resource manager there should be a graph for disk usage on the right hand side. if it reaches the top then it could indicate your hdd is reaching its limit.

This is how it looks like, i'll leave it open later when i play to see if it has something relevant, but i don't think it will.
Although it's not a SSD, it's a pretty fast HD

 

[Ps1d3r]

I'm not an expert with windows 7 but in the resource manager there should be a graph for disk usage on the right hand side. if it reaches the top then it could indicate your hdd is reaching its limit.

I checked and nothing out of the ordinary... Only thing consuming too much CPU is CSGO.exe :/