processor "underclocking" dramatically under load

[ullert]

Disabled speedstep in the bios and gone into Windows and had a look?

 

TBH - My 4690 is set to stay at its highest clock 3.9Ghz, even on idle. with 0-1% usage on idle, It's not pulling much power at all, very very similar wattage to having speedstep on @ idle.

I'd set speedstep off and see if it still has issues.

Ok i will try that

[ullert]

Disabled speedstep in the bios and gone into Windows and had a look?

 

TBH - My 4690 is set to stay at its highest clock 3.9Ghz, even on idle. with 0-1% usage on idle, It's not pulling much power at all, very very similar wattage to having speedstep on @ idle.

I'd set speedstep off and see if it still has issues.

Ok i turned the speedstep off and now it seems to work. For some strange reason Windows crashed on startup after i turned speedstep off, it went trough a "quick fix" or something like that, and then when i got on my pc, my screen got all weird and blury, it turned grey and black for some seconds before eventually going back to normal. I did the benchmark, and tested some games and it seems to work better then before actually. Maximum speed boost in 3dmark is now 3.9 instead of 3.7 as it has used to be up until now. Thanks ;D

 

Edit: Do i lose any performance or advantages by turning this off btw?

[SkilledRebuilds]

You gain performance.

Your CPU will not declock on idle to 1.6Ghz, so when you startup an application, it's instantly using your 3.5+ Turbo CPU speeds to open it.

Your CPU load will go up @ those clocks, and then when done, it stays at those clocks still, but with zero load. If you open up AIDA64 or anything that shows realtime WATTAGE used by the CPU.

You'll see its in the teens. 10-20w idle. Which is very close to speedsteps 8-11w Idle that it gives when @ 1.6Ghz idle clocks.

 

Gaining performance with zero negatives except at a very very very very small negligible cost of extra power (few watts)

 

@ullert How has further testing been so far since you disabled it, what else have you been running to check performance?

[ullert]

@ullert How has further testing been so far since you disabled it, what else have you been running to check performance?

it seems like its really good now, i have seen an increase in fps in all the games i have run (tomb raider, hitman absolution, next car game, watch dogs etc) though i have noticed that my screen has gone from bad to worse(completely different problem im trying to solve), though i dont think i can blaime that on turning off the speedstep  

 

Other than that i have not noticed any bad things, i will send a message again later if i find anything strange i guess

Thanks for the help!