System control panel and CPU-z disagree

[bwanaaa]

on my cpu speed. how could this be?
I have a q6600 running at 8 x 400 set in the bios.
CPU z reports this correctly.
The system control panel as well as the system information app
(Start Menu->Programs->Accessories->System Tools->System Information
) both report
Processor Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2128 Mhz, 4 Core(s), 4 Logical Processor(s)

Where are they getting 2128 MHz from? This is the EXPECTED speed from an FSB set to 266. They should say 3200. Is this a known bug?

 

[Schmide]

What is 8x266?

 

[lakedude]

on my cpu speed. how could this be?
I have a q6600 running at 8 x 400 set in the bios.
CPU z reports this correctly.
The system control panel as well as the system information app
(Start Menu->Programs->Accessories->System Tools->System Information
) both report
Processor Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2128 Mhz, 4 Core(s), 4 Logical Processor(s)

Where are they getting 2128 MHz from? This is the EXPECTED speed from an FSB set to 266. They should say 3200. Is this a known bug?

That CPU has SpeedStep so it will run at different speeds as needed. That might cause an unexpected reported speed...

 

[bwanaaa]

aha. speed step. so if disable the c1e bit in the bios, it should stay locked at the same number? anyway, i thought speedstep would only turn down the multiplier, not the fsb.

 

[46664]

I never remember windows displaying the correct speed for an overclocked cpu. Tools like CPU-Z will but not the OS itself

 

[Schmide]

aha. speed step. so if disable the c1e bit in the bios, it should stay locked at the same number? anyway, i thought speedstep would only turn down the multiplier, not the fsb.

It's not speed step. Windows probably reads the base information for the fsb then multiples the set multiplier. I.e. 8x266=2128.