i7 Clock going crazy

Soldato
Joined
27 Aug 2011
Posts
5,310
Location
Sheffield, UK
I've got the i7 2600k in my system (full spec in my sig)

I've got a load of different monitoring software running, Core Temp, CPU Usage, Touch Bios, CPU-Z

I've messed around in the Bios looking for a stable clock (anything from 3.4 to 4Ghz) Now I'm running stock at 3.4Ghz (until my H100 arrives) but CPU Usage's realtime clock speed keeps jumping from 1566Mhz at idle, to 5000ish for a split second, then back down to 1566Mhz, even though all I'm running is Firefox, the ram usage is at 25% (8GB total ram)

The core temps aren't even high, they're idle at 32-40, max is 60 when I'm running benchmarks, but whats going on with my system?

Is it just CPU Usage going mental or is my i7 jumping from 1.5Ghz to 5Ghz for a reason?
 
It seems to jump to 5Ghz even when it's only overclocked to 4Ghz though, just randomly, I put it down to crappy software
 
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