cpu multiplier limited to 39

[Bxephos123]

I have a z75 motherboard with an i7 2600k.the multiplier can go above 39 to say 41 and stay there and cpuz says 4.1Ghz but as soon as i stress test it reduced to 3.9Ghz

 

[utroz]

How are your cpu temps?

 

[Bxephos123]

How are your cpu temps?

about 50C during a stress test with a h100i gtx

 

[utroz]

How about power management settings in the BIOS? Things like speed step can slow your cpu down. Also did you make sure to disable turbo boost?

 

[Bxephos123]

How about power management settings in the BIOS? Things like speed step can slow your cpu down. Also did you make sure to disable turbo boost?

speed step and turbo boost were disabled but turboboost re enables on anything higher than 34 multiplier

 

[utroz]

Huh that is interesting.. Many motherboard makers have a overclocking utility for windows. Also intel has https://downloadcenter.intel.com/download/24075/Intel-Extreme-Tuning-Utility-Intel-XTU- that might be able to tweak your cpu and see if you can stop it from slowing down. What exact motherboard do you have?

 

[Bxephos123]

Huh that is interesting.. Many motherboard makers have a overclocking utility for windows. Also intel has https://downloadcenter.intel.com/download/24075/Intel-Extreme-Tuning-Utility-Intel-XTU- that might be able to tweak your cpu and see if you can stop it from slowing down. What exact motherboard do you have?

asrock z75 pro 3

 

[utroz]

http://www.overclock.net/t/1198504/complete-overclocking-guide-sandy-bridge-ivy-bridge-asrock-edition is a nice guide that might be helpful as well.

 

[utroz]

So what BIOS version are you running? This thread right here http://forums.tweaktown.com/asrock/49807-asrock-z75-pro3-cpu-throttle-problems.html seems to be exactly what you are experiencing. Maybe a BIOS update could help.

 

[Bxephos123]

So what BIOS version are you running? This thread right here http://forums.tweaktown.com/asrock/49807-asrock-z75-pro3-cpu-throttle-problems.html seems to be exactly what you are experiencing. Maybe a BIOS update could help.

nothing seems to work 🙁 bclk is at 105.2 putting it at 4.1Ghz and it wont boot on anything higher. is there anything i can do to get it higher? there isnt a Vcore setting on this board either.

 

[utroz]

I am out of ideas at the moment. Anyone else have any??

 

[Bxephos123]

I am out of ideas at the moment. Anyone else have any??

what about adjusting the multiplier per core? or overclocking ram? I'm pretty new to overclocking

 

[utroz]

I am out of ideas at the moment. Anyone else have any??

what about adjusting the multiplier per core? or overclocking ram? I'm pretty new to overclocking

Yes you can try tweaking per core multipliers. Ram overclocking does not yield as much of a performance boost as cpu overclocking but can help in certain workloads. Generally you want to keep your cpu base clock at 100Mhz as it can cause all sorts of issues.