Overclocking Sand Bridge + Speedstep

RobG · 23 Jan 2011 at 20:03

Hi,

I have recently assembled a Sandy Bridge setup consisting of:

i5 - 2500k
MSi P67 GD65
4 x 2Gb Geil Value 1600Mhz

I have it all built and windows installed at stock settings whilst I await the arrival of my monitor (expected tomorrow).

Once i have this I hope to complete a moderate overclock in the 4.4 - 4.6 Ghz region. This leads me to my main question that is:

Can I configure the system to give this kind of overclock whilst retaining the 'speedstep' ability where the processor is underclocked/undervolted during idle?

Thanks for taking the time to read this.

Cheers

Rob

DragonQ · 23 Jan 2011 at 20:13

Yes, it'll run from 1.6 GHz up to whatever you set the maximum multiplier to be.

RobG · 23 Jan 2011 at 20:40

DragonQ said:
Yes, it'll run from 1.6 GHz up to whatever you set the maximum multiplier to be.

Thanks for the info. I thought I has read somewhere that if you manually set a voltage (ie to make an overclock stable) then the CPU will always run at that voltage regardless of the speed set by speedstep (thus making speedstep kind of useless). Is that not the case?

Cheers

Rob

shrek2 · 24 Jan 2011 at 00:46

RobG said:
Thanks for the info. I thought I has read somewhere that if you manually set a voltage (ie to make an overclock stable) then the CPU will always run at that voltage regardless of the speed set by speedstep (thus making speedstep kind of useless). Is that not the case?

Cheers

Rob

If you set the voltage to offset in the bios the voltage when the cpu is idle.

RobG · 24 Jan 2011 at 20:19

shrek2 said:
If you set the voltage to offset in the bios the voltage when the cpu is idle.

Thanks for the info.

I've just tried the MSI overclocking tool and it is saying my motherboard isn't supported. I'm thinking a BIOS update may be required (currently on 1.4) but might just give it a bash from the BIOS itself.

Cheers

Rob