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Power supply question

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kmoney_93   08-31-2009 at 03:30:00 AM

i recently tried using a wattage calculator for my 1700$ build.
i will be using an i7 920 , 3 1gb 1600mhz gskill ram sticks, 2 gtx 295's, a 7200 rpm 1tb hard drive, dvd rw drive,two cold cathodes, and a flaming blade mobo, using an coolermaster haf 932 case also.
this wattage calculator says i need about 800 watts. that cant be right.
thanks for your time


Message edited by kmoney_93 on 08-31-2009 at 03:31:41 AM
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Bronze Home Brew badge dndhatcher   08-31-2009 at 03:59:36 AM

Why only 3GB Ram with all those other top end components? (not that it affects the wattage).

Nvidias specs are 680W for a system with one 295, and 290W more for the second GPU so more like 970. Highly unscientific but probably very safe.

I noticed the free PSU calculator I used seems to be calculating alot lower than I would risk. Its quite possible that 800W is correct, though because you only have 2 graphics CPUS. Given you dont seem to be budget minded, I would get at least a 1000W to leave room for overclocking and peak loads.

This PSU can do anything and is modular so you dont have cables hanging out everywhere:
http://www.newegg.com/Product/Prod [...] 6817256041

Reply to dndhatcher
stonebattle   08-31-2009 at 04:00:52 AM

That's one power intensive combination you have there, although I would think a 750W power supply should work well. If you plan to overclock your CPU to 4G then you might push the limit of that supply.

What calculator did you use?

Reply to stonebattle
jtt283   08-31-2009 at 04:37:40 AM

If you don't mind spending the money, get the best. The Antec SG-850 will run your rig. It is $229: http://www.newegg.com/Product/Prod [...] 6817371018

Reply to jtt283
kmoney_93   08-31-2009 at 04:40:49 AM

i used: http://www.antec.outervision.com/
thanks for the help guys!
i also decided to stick with this psu just to be safe: http://www.newegg.com/Product/Prod [...] 6817171029


Message edited by kmoney_93 on 08-31-2009 at 04:42:33 AM
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Bronze Home Brew badge jsc   08-31-2009 at 04:03:22 PM

I agree with mindless. Go with the 1 kw Corsair. It's a much better PSU overall.

Reply to jsc
Bronze Home Brew badge dndhatcher   08-31-2009 at 10:18:13 PM

I also agree with mindless (that sounds bad...) - plus that PSU is modular so you wont have something looking like a dead black octopus laying in the bottom of your case...

Reply to dndhatcher
baddad   08-31-2009 at 10:39:25 PM

I 3 that.

------------------------------ ASUS Striker II Extreme , C2D Q9450 OC 3.4, 8 Gig Memory, EVGA 8800GTX Triple SLI, Thermaltake 1000W PSU, Thermaltake Armor + Case, Acer 24" LCD, Water Cooled, 12 Foot DVI Cable, Vista 64 Bit SP2
 Reply to baddad
kmoney_93   09-01-2009 at 07:03:06 AM

okay guys i decided the corsair is the way to go! thanks for all the help and time!

Reply to kmoney_93
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