I've recently got this problem and I decided to ask here, since you guys helped me build my first PC and helped me out with other problems.
So, I've had this PC like this for 2 years now, I am running and AMD FX-8370 Wraith, MSI GTX 1050TI 4GB, 8GB HyperX Fury RAM, WTD 1TB HDD.
It has been more than good, I was running a steady overclock on my 1050TI (temps all good) and had bumped the FX-8370 from 4,0 gHz to 4,45 gHz. The PC would run all games in very good fps range, but recently a problem appeared.
In some games- DiRT 4, BeamNG.drive, GTA V, CS:GO, Rust- I started having lag spikes. Let's say DiRT 4, I am averaging about 80-90fps on Ultra graphics but at one point, the fps drops to around 20-30fps and stays like that for about a minute, then it goes back to normal. In GTA V I am getting around 90-100fps on very high settings (all the games are optimized using GeForce), then the fps drops to around 15, that really bothers me, because in an intense situation (combat, race etc.) it can really screw you over.
After I saw this stuff happening, the first thing I did was taking the overclock off. That didn't really change much, except the general fps was lower but the lag spikes were still there.
Then I started monitoring the performance. An interesting thing I saw was that when the frame drop happens, the usage of both CPU and GPU goes down. I continued investigating and saw that while my RAM usage is around 80% of the 8GB, the Page File usage is really up there, it's around 15000MB in the pagefiles when playing GTA V.
My first guess is that I need an SSD and maybe two more RAM sticks to get 16GB. The only thing that's interesting is that it appeared recently and I didn't have such problems before. Some time before the problem appeared, I think there was a GeForce driver update tho.
Any help is appreciated, thank you.