I suspected this, but whenever I have used one of the online power estimators
http://www.antec.outervision.com/
http://www.pcpower.com/technology/power_usage/
http://support.asus.com/PowerSupplyCalculator/PowerSupplyCalculator_right.aspx
I end up right at what I have, or more, and I while I own a
Kill-A-Watt, and a clamp on meter, I have never figured out how to
bring my PC with video up to its max draw... I guess I would just
run burn in software.
However, I need another PS for another PC, and since I can't find
anything in PCP&C so I am thinking of getting a SeaSonic
S12D 850 Silver 850W ATX12V V2.3/EPS 12V V2.91 80 PLUS SILVER
Certified Active PFC Power Supply -
on sale for sixty percent of what I had paid for the 910.
What exactly is the difference between the S12 the M12 and the X
Gold ( which isn't available above 750w)
thanks
At 05:40 PM 1/26/2010, you wrote:
> >What are you trying to do ATM?
> >Best,
> >Duncan
>
> I run a overclocked Q9650 in a Asus Maximum with 8 GB of DDR2 Two
> Asus ATI 4970, four hard drives, two optical, one floppy, and one
> soon to be two SSDs and a bunch of fans on a PCP&C Quiet 750 and I
> think I am pushing things when I fire up Crossfire Those GPUs and the
> overclock pull a lot of watts
You might actually want to grab a Kill-A-Watt meter or a real clamp-on meter
and actually measure it. Frankly, I'd be surprised if you're pulling more
than 500-600 watts at maximum load. I haven't measured mine recently (Q6600
at 3.6GHz, 8GB, 5770, and 13 HDs, 9 fans, plus a water pump that pulls more
than you might think), but it was around 500 watts load. My brother's system
(dual six-core AMD Opterons, 5870, and 12 HDs, including 4 15k SAS drives)
pulls just shy of 500 watts at full CPU load. And that's from the
mains--figure the PSUs are roughly 85% efficient (both are SeaSonic units),
and that's only around 430 watts off the secondary--which is what a PSU is
rated in.
Either way, I'm still sold on SeaSonic--specifically the S12/M12 and X Gold
series. I have changed my yardstick measure of quality, though...more than
anything else, I look at the manufacturer of the capacitors on the primary
and secondary sides in a PSU. I've found this to be the best measure of a
unit's quality, since you don't really see a PSU advertise that they use
Rubycon or Nippon Chemi-Con--but they are far more expensive than cheaper,
less reliable components and are universally found in the best supplies.
Greg
