Questions - Undervolting

Heeey. I managed to drop kick all my voltages down to 1.050, even those pesky 11x ones. Sadly enough, 6x won't go any lower either, but that's okay.

I'm averaging 45 idle, 55 load, (on a t7300) but that's not important to me.

I was wondering if at different multipliers, say 6x or 11x - if both are using the same voltage (1.050), do they dissipate the same amount of heat/power?
Because if they DO, then there's no point in using the lower multipliers, right?

 

6x cant go any lower cuz its locked

the answer is yes and no, at idle they probably will but at load times the 11x will probably produce more heat cuz it is running at a faster speed and therefore demands more power

 

I believe that the power consumption is also a function of frequency, so 11x will use more power than 6x. However, there's a basic power overhead (leakage) which I think is independent of frequency.

You are unlucky if your T7300 is locked at 1.05V minimum. I thought I had one of the worst at 1.0V. However, watch out for an 8x mode with a lower (0.95V?) which is actually 800MHz with half speed FSB. The bad news is that RMClock isn't compatible with this mode but you should be able to see it using CPU-Z.

John

 

Oh, no. My minimum is at 1.0, but there, it crashes in 5 minutes or less. :s

 

I always leave 6x at the minimum voltage and let the software interpolate the intermediate settings.

Once you are near 1V the power differences become small because power is a function of V squared (times frequency). The big saving is getting down from 1.25V (or thereabouts) to 1.05V which is worth about 10W.

John

 

hmmm i think mine's at 12x 1.025V T7200, cant seem to get the 12x to 0.95 as it immediately gives me a BSOD

 

Im a bit interested in this undervolting.. Pros as i see it is lower heat? But, how about stability issues and other follow up problems?