CPU-Z reports multiplier switching from 6 to 9

[bloodandsoil]

In CPU-Z, it fluctuates back and forth between Core Speed 1600 MHz and Multiplier 6, and Core Speed 2400 MHz and Multiplier 9.

I have an E6600 CPU and an Asus P5B-Deluxe motherboard.

Why is it doing this? Is is normal?

 

[YO_KID37]

It's Normal, don't worry about it.

 

[1Tanker]

In CPU-Z, it fluctuates back and forth between Core Speed 1600 MHz and Multiplier 6, and Core Speed 2400 MHz and Multiplier 9.

I have an E6600 CPU and an Asus P5B-Deluxe motherboard.

Why is it doing this? Is is normal?

It's the EIST (Intel Speed-Step Technology), which drops the multiplier to 6 in times of low CPU usage...to save power. When cpu cycles are needed, the multiplier goes back up to 9(instantaneously). If you find this irritating, you should be able to turn it off, in the BIOS.

 

[dasickninja]

Like Tanker said, you can turn this off, but unless you really find this annoying, or are going to overclock, I personally recommend leaving this alone, since it extends the life of your chip and reduces both heat and power usage.

 

[TechnologyCoordinator]

AMD has the same thing for Quad FX, it's called "Hot n' Noisy".

 

[dasickninja]

Its not your imagination. Its the truth.

 

[wolfman140]

(puts face in hands) *mutter mutter*

 

[bloodandsoil]

I disabled SpeedStep in the BIOS. But I guess it has no effect, since the multiplier is still dropping to 6.

 

[kukito]

If you're running Vista you need to change your power settings to High Performance. Apparently Vista will hijack Speedstep and C & Q.

 

[Grimmy]

Not sure, but is there 2 parts in the bios?

C1E

&

EIST

Or is it just all in on section in the bios?

I know I'll be messing with a C2D later on.

. o O (waits patiently.. twitches.. fiddles thumbs)

 

[exit2dos]

Right you are, two there is. [/Yoda]

Not sure about the Asus BIOS, but on my Gigabyte board I have to toggle both settings to turn it off.

 

[bloodandsoil]

What is C1E and EIST?

Why isn't SpeedStep disabled even though I have disabled it in the BIOS? (I'm running XP Home by the way).

 

[waleedhk]

disable C1E aswell as the EIST...

 

[InteliotInside]

Both C1E and EIST adjust power usage according to CPU load levels. Low load levels equals low power consumption.

It's quite handy and it helps keeps temps down during idle.

 

[ohwoojin]

Im having the same issues here. Howver, someone above said turn off if your overclocking. Why dont you overclock with speed step enabled? if it helps make the chip last longer.....

so C1E and EIST are both powersaving functions. but what is the difference between the two?

 

[Grimmy]

C1E
Allows the system to change voltage level (lower) of
processor when no work is being done. (voltage only)

EIST
Speedstep technology: Advanced Power management
which includes Frequency and voltage (lowers default multi as well as voltage)

 

[ohwoojin]

Ah, I see.So why is it a good idea to turn it off for overclocking? Surely it would be useful-keeping volts+temp down? And then upping volts when needed surely?

 

[ohwoojin]

Ah, I see.So why is it a good idea to turn it off for overclocking? Surely it would be useful-keeping volts+temp down? And then upping volts when needed surely?

 

[InteliotInside]

I use it even when overclocking.

That way I go from 3GHz idle to 4GHz load. :/

 

[bloodandsoil]

I found C1E but not EIST. I have an Asus P5B-Deluxe btw.