Rough estimate of maximum HD power consumption?

wsc · Post by **wsc** » Sat May 29, 2004 6:37 pm

I was talking to a few folks on another forum who swore up and down that a 7200 RPM hard drive pulls more amps to spin up than a "typical" CPU would under 100% load. Obviously this struck me as ridiculous. I was wondering if anyone had heard a rough figure for HD start up? I searched and searched, no luck though

Thanks for any help

dan · Post by **dan** » Sat May 29, 2004 10:07 pm

samsung lists about 10 watts for their sp80,

given the size, volume, surface area, metal, and mass, 10 watts spread out over 3 dimensions results in little heat.

p4's can use 100+ watts in a 2-dimensional chip the size of your fingernail.

halcyon · Post by **halcyon** » Sun May 30, 2004 8:15 am

Lots of power draw figures from Takaman's PSU calculator:

http://takaman.jp/D/index.html?english

fmah · Post by **fmah** » Sun May 30, 2004 8:22 am

Hard drive spin up for a WD 7200rpm 80GB is no more than 20 W. I was using a Kill A Watt device to measure this.

wsc · Post by **wsc** » Sun May 30, 2004 4:47 pm

thanks fellas - exactly what i was looking for!