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How Much Power Do I Need?

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - How Much Power Do I Need?

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dpeel   08-10-2009 at 12:54:09 AM

I am planning on building a new system about the time that Windows 7 is released since I want to do a fresh install and it would be a good time. I am planning to buy a Phenom II X-4 955 Black Edition CPU and a Asus Crosshair III Formula Motherboard. I will have one Seagate 1 TB internal Hard Drive and one LG DVD Burner. I have a EVGA Nvidia 8800GT Video Card that I am hoping to use for awhile until DirectX 11 Video Cards are out. My current sytem Power Supply is a Fortron Source ATX 400W 20/24 pin Power Supply, w/SATA & 12cm Fan, model FSP400-6oTHN-R - OEM. I do want to overclock but not push things to extreme or have to use anything more than air cooling.

My Question is.......do I need a new Power Supply and how much Power should I need?.......I'm thinking I might need around 600 Watt Power Supply......any suggestions?

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o1die   08-10-2009 at 01:00:38 AM

Corsair, pc power and cooling, antec, seasonic, ocz and enermax are usually safe bets. Check newegg for rebates; look at the 12v rail amps; 40 is the minimum I would go with. If your ps has more than one 12v rail, then add them together to get at least 40.

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theAnimal   08-10-2009 at 05:15:00 AM

o1die wrote :

then add them together to get at least 40.


Then check the PSU label to see the actual total. ;)

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dpeel   08-10-2009 at 09:16:07 PM

Thanks All......the Cooler Master I selectedis rated at 50 amps.

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TexasRattleSnake   08-10-2009 at 10:11:13 PM

if its not one of the real power pro, or the UCP series then I would be very hesitant to go with Cooler Master..look at Corsair's line up, its top notch in quality

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