Hello, I have problem with a cpu, which seems work at 800 mhz instead of 3.5 ghz.
My specification:
i5 6600k
gtx 1070ti
16 gb ddr4 ram
psu 650w
Game is on a hdd, full client, no change of frequency on dx9 or dx11. I redownloaded a game but it didnt help.
Cpu frequency doesent go back too normal even in other games, only restarting pc can fix it, until i try play in swl.
Any suggestion?
P.S. I m not a native speaker, so please forgive me if i make any mistakes 
Windows 10?
Power Options set to High Performance?
Also look for BIOS, processor chipset, and other driver updates.
Game only utilizes a single core if I remember correctly it is odd that it remains low for other games though until you restart.
I dont know what happened but game seems work well (for SWL atleast…), yet cpu is still on 800 mhz. If anyone have any suggestions please write them maybe i forgot about somthing obvious.
Your power supply is big enough and since you only see this with the one game I do not think that could be the issue. The only other thing I can think of is heat dissipation. When was the computer system built? Have you re-done the thermal paste/checked the cooling solution?
I bought this processor in March, while gpu was bought 2 months ago. I currently have cooling on the processor with three heat pipes, so CPU temperatures are not a problem, I did not overclock it, so it works on standard clock.