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I don't need it for arma, but i do play other games on 4k where the overclock is worth the extra few frames.

Yes everything works fine without overclock and the issue is fixed. But i wanna know why it happens when the card is overclocked, because i want to keep it overclocked and not always reset it when playing arma3. Sorry for the confusion.

I was trying to figure out why my Arma3 randomly freezes after playing for about ~5 minutes. After it freezes gpu usage goes to 0% while cpu is still 40%, only way to get out the game is closing it via taskmgr, cmd or restart. After some troubleshooting i reset my gpu's oc and it now works perfectly fine, but why does that happen? My gpu usage is barely 60% when ingame and the temp doesn't go over 55C°. I can run furmark 30 minutes long without a single artifact or problems at all. Specs: i4790k @ 4.9ghz EVGA 1070 FTW Power limit 112 Core +130 Memory +550

There's no need to set memory limit. The auto detection should work perfectly fine so also no reason to use extra threads. Keep the large pages enabled. Not sure about hyper-threading i believe the game uses every logical processor anyway. But parameters won't really give you better performance at all, rather inform yourself of the graphic settings. Some other useful stuff that you might want to enable would be ( -skipIntro, -noSplash, -noLogs, -noPause, -world=empty/altis/whatever world u want to load )