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Lag spikes in every game, and gpu at 50-55° C with almost all applications closed.

Hi, I recently had a problem of lag I never had since I bought this pc: yesterday I started Overwatch and I noticed constant spikes of lag I didn't have the day before.
I checked into the case and I've seen a lot of dust between the radiator (the CPU is water cooled) and the fan, I removed the dust from the radiator and also some from the graphic card (without opening it, just the dust I found on the fans).
After booting my pc and retrying everything was ok again, but after a few minutes of gaming (cs:go high settings) the lag came back.
Opening GPU Tweak I noticed I have a gpu temp of 54° C (with only chrome opened) when not playing and a temp of 81° C when playing overwatch.
Also the gpu clock is at a constant 1006 Mhz when on the desktop.
Is it normal?
What's the problem? Thank, you in advance.

My specs:
CPU: i5 4440
GPU: gtx 760 2GB OC
mobo: z87-hd3 Gigabyte
RAM: 8gb ddr3
OS: Windows 8.1 64-bit
4 answers Last reply Best Answer
More about lag spikes game gpu applications closed
  1. 81c is high enough to throttle and cause lag, how is your airflow? ambient temp? try using a custom fan curve with MSI afterburner to see if it still does it while the temps are down !
  2. Hi ty for the fast answer, but before trying what you say I need to know if 44° is good (all applications closed) cause I reinstalled graphics drivers and now the temps lowered as well as the clock which now is 135 Mhz.

    Hi, I just wanted to let you know that I figured out what was happening to my GPU: I don't know exactly why but the problem was the desktop capture function in Shadowplay. When, after reinstalling drivers, I decided to toggle it back on, the graphics card clock went back to 1006 Mhz so I guess the problem was Shadowplay, even though I don't know why.
  3. Best answer
    yes 40-45c is normal for a card on idle
  4. Thank you really much! Bye
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