OC ing

[marklp77]

I take it that OCing pulls more juice from the power supply...

[Target]

I'll probably get clobbered by an electrician for my answer...but here goes.

As a general rule, simply over-clocking your CPU does not pull more juice from the power supply. It could however, if increasing the voltage to your CPU is part of your over-clock strategy.

[Banti]

Forcing a chip to operate faster will pull more electrons per second, thus it will pull more 'juice'.

Another way to think of it...
You OC your chip and it gives off 20 more watts of heat. Those 20 watt2 have to come from somewhere, and your PSU is a good place to get extra electrons throughput.

Banti

[bdog]

I agree with Banti. That heat has to come from somewhere. I don't think the added pull on the PS would be large enough that you have to worry about it.

[marklp77]

Thanks all!

[U-96]

if you are overclocking by ramping up the FSB speed to an exotic number (75/83MHz for example), will the PCI/AGP busses also change their power consumption from the norm, depending on the ratio you chose in the BIOS setup?
I'm just thinking that in a heavily-laden box (V2 SLI, cd burner, NIC, etc) the knock-on effects, especially for a modest PSU, could become a consideration?
However there's also another voice in my head harking back to an old physics lesson on wave theory, about energy usage re: amplitude and frequency, but it's not shouting loud enough http://www.sysopt.com/forum/wink.gif
Maybe someone could do the math for us?

U-96