Do you enable Speedstep throttling when overclocking Core2Duo?

[GundamF91]

I'm still new to Intel chips and wondering if you enable speedstep throttling with your overclocked rig. Does the system just turn down the multiplier and voltage when the CPU is not stressed at 100% load? Is it adjustable?

I've been using RightMark CPU Clock utility with my current AMD A64 rig and it would drop the multiplier and voltage. Is that what Speedstep does?

 

[Ika]

On my 8x multi E6420, Speedstep lowers the multiplier from 8x to 6x when the computer doesn't need the full CPU power. Therefore, it brings my CPU down from a 3.2ghz to a 2.4ghz. Saves heat, energy, blah blah. AMD's Cool & Quiet did the same thing, I believe.

A lot of overclockers tell you to turn it off, because it could interfere with stability, especially if you have to change the multiplier for your overclock (i.e. 8x stock multiplier operating at 7x multiplier for max CPU speed). If it doesn't cause a problem, though, I'd say leave it on - it doesn't really hurt, and it saves energy too.

 

[tigersty1e]

I turned mine off.

I'm all about performance and when I need the extra juice, my CPU might have a very, very slight delay getting up to 3.15 MHZ from the reduced clock.

Someone might say that there is no delay.

Maybe so, but I know for sure that there is no delay on my system.

 

[SerpentRoyal]

C1E and EIST enabled with Abit IP35-E. Works well as long as CPU is at default multi. No need to worry about Vdroop. If I need 1.42 Vcore to run at 3.49GHz, then I dial in 1.46 in BIOS. PC will idle around 1.29, and run at 1.42 under load. Chip will never see 1.46 in BIOS.

 

[The-Noid]

On ASUS boards EIST seems to work even when multipliers are switched.