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Need advice on PSU for gaming build

Last response: in Components
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August 21, 2011 1:20:57 PM

Hi all,

I'm trying to figure out how much power I need for a new gaming build.
Some calculators take is as around 600, while others show 700+.

The following listing is the build:

ASUS P8P67-Pro
Intel Core i5-2500
Kingston PC3 12800/1600 CL7 4GB
Kingston PC3 12800/1600 CL7 4GB
WD Caviar Black WD1001FALS 1TB
WD Caviar Black WD2002FAEX 2TB
WD Caviar Green WD20EARX 2TB
Sapphire HD6950 2GB GDDR5
Corsair Hydro H80
CoolerMaster HAF X
LG BH10LS30 Blu-Ray Burner Internal

I'm planning to put in the maximum number of fans for the case and maybe 3 or 4 USB items like portable HDD and media players.

I have my eyes set on a Seasonic 660W PSU but I'm not sure if it is enough.

Thanks!
a b ) Power supply
August 21, 2011 1:58:50 PM

Power consumption hd 6950 underload arround 256W and Seasonic X660 morethan enough for your system +OC
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August 21, 2011 2:07:08 PM

Seasonic is a great company, that will be plenty for your one video card setup. If you plan to CF in the future, grab a beefier one, say around 750w
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a c 1203 ) Power supply
August 22, 2011 12:41:55 AM

The Seasonic X-Series 660W Model X-660 (SS-660KM Active PFC F3), with its +12 Volt continuous current rating of 54 Amps and four 6+2 pin PCI Express Supplementary Power Connectors, is enough to power a system using two Radeon HD 6950 graphics cards in 2-way CrossFireX mode.

You'll also be happy with its full modular design.

It should be able to handle any overclocking you may wish to attempt. That power supply is over-engineered so it should be able to deliver over 750 Watts on its DC Outputs.
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August 22, 2011 12:26:16 PM

I'm curious on how you guys calculate the requirements.
Based on the calculators I've used, some say it may not be enough.
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a b ) Power supply
August 22, 2011 3:49:02 PM

+1 bippedal, calculator is same as my think more power will enough .. That's need a lot of money :D 
Please read spec in expert footnote : you will more idea
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a c 1203 ) Power supply
August 23, 2011 4:40:14 PM

amsga said:
I'm curious on how you guys calculate the requirements.
Based on the calculators I've used, some say it may not be enough.

I don't use the online power supply calculators.

I use the knowledge I gained when I studied Electrical Engineering at university.
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August 23, 2011 4:51:07 PM

Buy a Corsair AX650 or 750 to be on the safe side. ;) 
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August 25, 2011 11:16:15 AM

008Rohit said:
Buy a Corsair AX650 or 750 to be on the safe side. ;) 


Aren't Corsair's from Seasonic?
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a b ) Power supply
August 25, 2011 11:54:13 AM

Some PSUs corsair have OEM Seasonic :) 
and other made by CWT
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a c 1203 ) Power supply
August 25, 2011 4:12:42 PM

amsga said:
Aren't Corsair's from Seasonic?

Corsair currently uses three OEMs.

CWT (Channel Well Technology), Flextronics and Seasonic.

The CMPSU-1200AX 1200 Watt PSU is the only model made by Flextronics.

The new Enthusiast TX series hybrid modular models CMPSU-550TXM, CMPSU-650TXM, CMPSU-750TXM and CMPSU-850TXM are all made by CWT and are just now appearing in the marketplace.
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September 4, 2011 6:44:10 AM

Best answer selected by amsga.
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