Tom's Hardware > Forum > Homebuilt Systems > General Homebuilt > 550W PSU enough ?
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tonnyp   10-10-2009 at 03:14:11 AM

My current builds:
MSI P35 NEO2-FIR
Xeon E3110 @3.00Ghz
2x2Gb Team Xtreem Dark PC6400
MSI GTX 275 TwinFrozr
1 DVD ROM, 1 DVD Multi
HDD 500Gbx2, 640Gbx1
HAF 922, 6x120mm Led fans,1x250mm Led Fans
Currently using Corsair VX550W PSU
Is my psu enough to supply my system on 100% load?

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skora   10-10-2009 at 03:57:21 AM
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By the numbers alone, no. But the Corsairs will run higher than they are rated, so you shouldn't have any problems with it. The down side is, the PSUs are most efficient at less than full load, somewhere in the 80% range. So as you get upto and past that peak effeciency, then it drops off quick.

Edit, Antecs PSU calc has your system at 358w with all the drives and fans. So, aford10 is correct below.
http://www.antec.outervision.com/PSUEngine


Message edited by skora on 10-10-2009 at 04:36:44 AM
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aford10   10-10-2009 at 04:27:03 AM
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Yes, that PSU is fine. At load, you are using ~370w.
http://www.neoseeker.com/Articles/ [...] 75/14.html

------------------------------ CM HAF 932 - 300GB Velociraptor
GIGABYTE GA-EP45T-DS3R
E8500 - Sapphire 1Gb 4850
4G DDR3 OCZ Reaper 1333
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tonnyp   10-10-2009 at 08:21:26 AM
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Ok, thanks for the answer.

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