Is Your Intel Not At Full Speed? READ THIS!! - Overclock.net

coldchillen · 08-09-07

Intel has designed their newer CPUs with power management in mind. When the CPU is at idle or when the not a lot of computing power is necessary, it drops the multiplier by a couple, depending on which model you have. I have an Intel E6300 with C1E and EIST enabled in the BIOS. When the CPU power isn't necessary, my multiplier drops from from x7 to x6, dropping overall CPU speed and FSB like so:

However, when loading programs, gaming and other CPU intensive activities are going on, such as stress testing, the CPUs multiplier goes right back up to the set default (which is maximum), illustrated here:

C1E and EIST does not hurt your CPUs overclocking potential at all. Its there to save energy.

However, if you decide you cannot have this function, it can be easily disabled in the BIOS.

**TheLegend** · 08-09-07

Thanks for the information, but this is a pretty well known fact within the Intel community.

It's proper name is Speedstep.

coldchillen · 08-09-07

Quote:

Originally Posted by TheLegend

Thanks for the information, but this is a pretty well known fact within the Intel community.

It's proper name is Speedstep.

yup, its pretty well known, but theres only like 10 threads a day asking why their intel CPUs are not at full speed

Muhahahaha · 08-09-07

And there seem to be a lot of people who turn it off for some reason... even though it doesn't slow you down at all.

Coma · 08-09-07

Somebody just posted a How To about this =\

**dr4gon** · 08-09-07

Great now we have 2 FAQs lol....

http://www.overclock.net/intel-cpus/...g-windows.html

this should get the message accross. They should be merged and stickied.

born2killU · 08-09-07

it should be on the full multi all the time

FOLD !!!!!

coldchillen · 08-09-07

Quote:

it should be on the full multi all the time

FOLD !!!!!

when you fold, its on full

h00chi3 · 08-09-07

If you leave C1E on, and you have overclocked your cpu, and you have entered manually adjusted voltages, when the cpu drops from no usage, won't that higher voltage hurt the cpu. I mean if I am running 3.6 @ 1.45vcore and the cpu drops to 2.4 @ 1.45vcore, isn't that bad?

JacKz5o · 08-09-07

Quote:

Originally Posted by h00chi3

If you leave C1E on, and you have overclocked your cpu, and you have entered manually adjusted voltages, when the cpu drops from no usage, won't that higher voltage hurt the cpu. I mean if I am running 3.6 @ 1.45vcore and the cpu drops to 2.4 @ 1.45vcore, isn't that bad?

Well the voltage definitely isn't needed for the lower clock speed but its not really bad in a way. 1.45 vcore on a 2.4GHz speed is the same as 1.45 vcore on 3.6GHz.

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Is Your Intel Not At Full Speed? READ THIS!!

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