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SATA harddrive power consumption

Posted: Mon Apr 25, 2005 2:35 am
by shunx
How much do SATA harddrives use on the 12V, say a Seagate 7200.7? I already have three 7200.7 ATAs running on a Nexus 300w so I have to start being careful.

Posted: Mon Apr 25, 2005 2:47 am
by shunx
Well this is from Seagate's site, for the 200gb model:
http://www.seagate.com/support/disc/spe ... 822as.html
POWER REQUIREMENTS: +12V START-UP (amps) _2.8
POWER MANAGEMENT (Watts):
ACTIVE _______________13.5
IDLE _________________9.0
STANDBY (typ/max) ____2.0/

That looks like 1.1A on the 12V when active.

For the ATA version:
http://www.seagate.com/support/disc/spe ... 0822a.html
POWER REQUIREMENTS: +12V START-UP (amps) _2.8
POWER MANAGEMENT (Watts):
ACTIVE _______________12.5
IDLE _________________7.5
STANDBY (typ/max) ____0.7/

Or a bit lower usage than the SATA version. Has anyone tested if this seems to be true in general?

Posted: Mon Apr 25, 2005 4:33 am
by sthayashi
I'm going from memory on this one since my only 200GB Seagate is an enclosure and, I'm sorry, but I'm not going to shut it down and bust it out for you this morning (it's a 10 minute procedure and I need to be out the door early today).

The power draw I believe is pretty evenly split between the 12V line and the 5v line. The 12V was something like 0.37A and the 5V was something like 0.73A.

This was for the IDE version of the drive though.