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What size power supply do I need?


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#1
jhemfl

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What kind of power supply do i need for (how many watts):



CoolerMaster CM 690
Intel Core 2 Duo Processor E6850
Asus P5N-E SLI nForce® 650i SLI Chipset
2048MB DDR2-800 PC6400 Mushkin Xtreme w/Heat Spreader
Nvidia Geforce 8800gtx 768MB
320 GB Serial-ATA-II, 3Gb, 7200 RPM, 16M Cache
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#2
Titan8990

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When it comes to PSUs it isn't just about max wattage. Other things to look at is the efficientcy rating (I don't recommend anything lower than 75% full load) and the +12v amperage is also very important when it comes to high end graphics cards.

For your system I recommend this PSU: http://www.newegg.co...N82E16817371001.

It has max efficiency of 85%, 650 max watts, and a total of 57a +12v. Also you could look in to the Silverstone Olympia series or the Thermaltake Toughpower.
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#3
Curryjl

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If one video card is all your using i would recommend you do about 800w to 1000w just in case you upgrade to use the scalable link interface.
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#4
Troy

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Curryjl, the PSU that was suggested is already SLI-certified. Going anymore than this would be overboard, given the current specs supplied. :)
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#5
Curryjl

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I knew it was coming hence the fact i didn't see the above post about the already listed nice looking psu so back at ya FPVDriF6 *pow pow* :)
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#6
Troy

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:) I just noticed they were a minute apart - sorry! :)
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#7
Curryjl

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You just got PWND :)
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#8
jhemfl

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What the...? 800w? no way, I'm deciding between 600 or 650, or maybe even 550 if i can get away with it.
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#9
Titan8990

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I don't recommend going below 650. When i put your specs into a PSU calculator it came out to a little under 500w. You never want it to be anywhere close when it comes to power. Is there something wrong with the PSU I recommended?
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#10
Troy

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800 watts is probably a little overboard, but I wouldn't go any lower than what Titan8990 has suggested.
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#11
rinconjoe

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When it comes to PSUs it isn't just about max wattage. Other things to look at is the efficientcy rating (I don't recommend anything lower than 75% full load) and the +12v amperage is also very important when it comes to high end graphics cards.

For your system I recommend this PSU: http://www.newegg.co...N82E16817371001.

It has max efficiency of 85%, 650 max watts, and a total of 57a +12v. Also you could look in to the Silverstone Olympia series or the Thermaltake Toughpower.

would be fine above 600 watts that is SLI cert and stable should be ok
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#12
james_8970

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Give me your budget for a PSU, since your running a GTX I wouldn't cheap out. However in the end it's your call.
James
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