2-5 second freezes with 6700k

[metigel94]

Hey guys!

 

I just bought a used 6700k on the German version of craigslist, to replace my 6600k.

 

The CPU arrived today and to test it, I fired up Cinebench and Prime95. I noticed that during the test (in cinebench only right before it finishes) my mouse/the whole system gets stuck for 2-5 seconds. I haven’t noticed the issue when just browsing the internet or similar.

 

I tried it with stock speed and with an underclock to 3.5 GHz. The problem still persists. 

I just installed the newest chipset driver from my mobo’s website but that didn’t help either.

 

It’s nothing big, but I didn’t have that issue with my “old” i5.

 

Has anyone had similar issues and knows a (possible) fix?

 

System:

MSI Z170 Gaming Pro

16GB ddr4 @ 2133

750 Watt Corsair PSU

840 Evo SSD @ 256GB

GTX1070 FE @ ~2030Mhz

1x 1440p 144hz monitor

1x 1650x1080 60hz monitor 

 

thnaks in advance! :-)