Hi! >[15W for my PIII933 Idle/Prime95]
>Otherwise the increase in power consumption could be due to the FPU >being active. Based on my experience with CPU core temperature monitors >on PIII systems, I rather doubt that a PIII-933 FPU consumes as much as >15W above the normal load. I would think 15W extra for an Athlon FPU or P4 >SSE2 would be reasonable. I also thought 15W are are to much, but i measured the power consumption with an energy monitor that measures the real power consumption in W and not only VA, so i don't think it's an error in the measurement. I guess some Watts add to the CPU-consumption, because the efficiency of the power supply is far below 100% when there is a huge demand of 5V-power creating some more loss there. > Hmm. PSU fans normally run continuously. In any case the consumption would be > low - computer case/PSU/CPU fans rarely consume more than 0.2A @ 12V (2.4W), > often significantly less than this. Hmmm. The PSU fan is thermal controlled. Perhaps is uses about 1W more when Prime95 is running... not sure... > > Perhaps it would be interesting to find the system thats optimal for > > LL-tests energywise ;) > [your thoughts about power-consumption and costs] I have not thought of most of those topics - thanks. Ciao, Lars _________________________________________________________________________ Unsubscribe & list info -- http://www.ndatech.com/mersenne/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
