Help with BIOS on P55-UD3

[GoonerTCN]

Hi guys, need a bit of help please. I have just built a new system, the main components of which are i5 750, Gigabyte P55-UD3, and G-Skill 4gb 1600mhz 7-7-7-24 RAM.

It's the BIOS I'm struggling with...it defaults the RAM to 1333mhz (133 bclk) and the CPU to x20 (x21 for turbo), which is fine, however I want the RAM to run at 1600mhz. I selected the XMP RAM profile which automatically altered the bclk to 160 (increasing RAM speed to 1600) and the CPU multi to 16. Now the problem I've got is the turbo multi for each core also says 16 and sure enough I don't get any turbo kicking in in Windows.

I've tried enabling/disabling C1E and EIST etc but nothing I do seems to allow me to have any turbo. I'm not bothered about overclocking as I only have stock cooler, I just want the damn turbo to kick in!! Is this impossible due to changing the bclk?

Any help appreciated, thanks

[Beekeeper]

just use Super PI to load the CPU and while Super PI is running then check the settings of CPU by CPU-Z software

[Freakapotamus]

I think you want to be changing the memory multiplier and not the CPU multiplier .. by changing the cpu multiplier and the bclk you are overclocking your CPU.   Also depending on the CPU you are using they are generally CPU multiplier locked anyways.

I tested this on my i7 860 (UD5) last night you need to take memory multiplier off auto ( X10) and change it to X12 this will keep the cpu at the same speed and bump the memory frequency from 1333HHz to 1600Mhz.  The only issues I had was by doing this it broke Turbo mode and also didnt allow the cpu to lower the frequency.  It usually dynamically adjusts the CPU multipler between x9 -x 22 depending on the load. once the memory multiplier was changes it was permentally fixed at cpu multiplier x21  which is the defualt for this core.

[oggmonster]

Running a small fft test with Prime95 will stress all cores and should raise your multi.