[opensuse] [OT] How much power does a PC really consume?
- From: Per Jessen <per@xxxxxxxxxxxx>
- Date: Thu, 14 Feb 2008 14:56:23 +0100
This is really off-topic, but as the initial discussion took place here,
I figured this was a reasonable place for a follow-up.
In my attempt to track down the instability problem in my newly acquired
workstation with AMD Phenom, Radeon graphics etc., I went out to buy a
new powersupply having been convinced (after a couple of suggestions
from others) that my powersupply of 350W was just not enough.
It led to a bit of discussion wrt what is the right size for a
powersupply?
Well, here are some numbers. I've measured how much power my new
workstation uses under different loads.
The system is comprised of:
1 x AMD Phenom quad-core CPU. It think it is supposed to draw 95W.
4 x 1Gb memory
2 x 320GB SATA drives (RAID1)
1 x Sapphire ATI Radeon X1650 with passive cooling.
Miscellaneous: DVD, CRDW, floppy, cabinet fan.
The current powersupply is a Thermaltake Toughpower rated for 850W. A
very nice powersupply, also very quiet.
standby = 3.0W
idle = 130-150W. Peaks of 165W.
startup = 150W. Peaks of 175W.
resync of 280Gb RAID1 = 155-160W.
1 core full load = 185-190W. Settles on 190W after a while.
2 core full load = 205-210W.
[the system rebooted at this point, system temp=50, CPU temp=60,
temp3=87]
[added large 40cm fan to keep temps down]
3 core full load = 220-225W. Settles on 225W after a while.
4 core full load = 228W-230W.
(the machine reboots after a while, but it's more stable with the
verylarge and very noisy fan).
I'm just now looking into something to stresstest the graphics card, but
even if it were to add 100W extra load, well ...
/Per Jessen, Zürich
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