Extreme Perfomance Spikes - i7 4790K

Zhycallister

Honorable
Oct 4, 2014
6
0
10,510
Hi guys,

About two or so days ago, my machine began to experience lag spikes in about five second intervals when doing anything above simple browsing or idling, mostly during gaming. FPS will go from 80+ to 30 FPS over the course of two seconds, and idle there until it returns to normal, before repeating. After working on this issue for many long hours tonight, I thought I'd finally come here to ask, as I've exhausted all of my knowledge, and all attempted solutions have come up futile. Here's my specs down below:

Operating System: Windows 7 Home Premium 64 Bit
Motherboard: Asrock Z97 Extreme6
CPU: Intel i7 4790k (4.2GHz)
CPU Cooler: Hyper 212 Evo
RAM: Corsair Vengeance 16GB DDR4
GPU: Nvidia Gigabyte Windforce GTX 980Ti
HDD: Seagate BarraCuda ST375064

Originally, my thought process for this issue was that there might have been a driver issue with my video card, as the latest Nvidia driver update, 391.0 was causing lag spikes and other similar issues for lots of folks. However, even after rolling back with DDU, and reinstalling many, MANY drivers from the past that worked just fine, the problem persisted. Since then, I have done the following:

1.) Run other video driver installations
2.) Run clock and temperature monitors, no abnormal temperatures (32c idle, 40c load)
3.) Run memory checks (All passed)
4.) Run disk defrag, optimization, and registry cleaners.
5.) Run Malwarebytes and Avast scans, twice.
6.) Unparked all idle cores.
7.) Changed power options.
8.) Disabled global V-Sync from Nvidia control panel.
9.) Booted in Safe Mode, repeated steps 1-8.
10.) Reinstalled Windows.

None of these attempts have fixed my problem. This was all so very abrupt and sudden, as my machine appears to be healthy on all accounts, and was not exhibiting any of these behaviors just two days ago. I am at a loss. Do you guys think it's the CPU? The GPU? I don't understand.

Thank you.
 
There was a WIndows update (2nd Tue of each month) pushed out last week, your drivers might have been inadvertently botched during the process...

Reinstall chipset drivers then GPU drivers again as though was a new build....

If that does not work, restore to an earlier date a week ago, assuming you have restore points enabled...
 

Zhycallister

Honorable
Oct 4, 2014
6
0
10,510


Hey, thanks for the suggestion. Unfortunately, this did not resolve my issue. After more testing, the GPU appears to be the one spiking now, rather than the CPU, but no rollback of drivers has done anything for it. Windows did not create a restore point for this update, and manual rollbacks have done nothing.

This was very random and sudden, as stated prior. Absolutely bewildered, my system was perfectly fine days ago. Preparing for another clean Windows install. If you or anyone else has suggestions, please, do share.
 

Zhycallister

Honorable
Oct 4, 2014
6
0
10,510
To anyone who finds this thread seeking a solution to their own issue:

In the end, this ended up being a video card issue. After doing everything posted above, I swapped it out for another card of mine, problem solved. The culprit card is on it's way under RMA for repairs. So, to anyone who reached this point, I think that's your best option.

Best of luck.