BIOS says 4 GHz, CPU-z says only 3.6 GHz when running stress test

[rgames]

Not sure when this started happening but I have been running an i7 6800k at 4.0 GHz for a while and today I noticed that it's only running at 3.6 GHz according to CPU-z, AIDA, HWMonitor and Windows itself. The behavior is the same when running the AIDA stress test. Even if I set the power plan to always run at max speed it never goes above 3.6 GHz - it just stays at 3.6 GHz, never rises or falls.

But here's the kicker: the BIOS it says it's running at 4.0 GHz.

Any ideas on what could be going on?

Am I running at 4 GHz or not?

Thanks,

rames

 

[rgames]

Update - the BIOS settings are clearly having no effect because I've changed the multiplier to a bunch of different values and everything in Win10 (CPU-z, AIDA, etc.) says 3.6 GHz. Also, when I run the stress test the temps are a lot lower than what they would be if it were actually running at 4+ GHz.

So it's definitely not running at 4.0 GHz in Windows.

Anybody have an idea why not?

Thanks,

rgames

 

[danielgort19]

Yeah i have the exact same issue but mine runs on 1.36 GHz and not the 3.5 that it should be.
Ive tried the stress test and bios settings and nothing seems to work.