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What strength power supply do I need?

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Last response: January 16, 2012 8:54 PM in Systems

Biotite

January 6, 2012 9:00:23 AM

Greetings. I have recently discovered, through much effort, that my power supply is crapping/crapped out. I have recently completely rebuilt my system with a few components kept from my last build. My specs are:

ASRock Z68 PROFESSIONAL GEN3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard

Intel Core i7-2600K Sandy Bridge 3.4GHz (3.8GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor

2 SLI configured EVGA GeForce GTX 570 HD

G.SKILL Sniper Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900) Desktop Memory Model F3-14900CL9D-8GBSR

A liquid cooling block w/ radiator cooling fan

run of the mill dvd/cdrw drive

1 Samsung Terrabyte HD

1 WDC 500G HD

Logitech gaming backlit keyboard and gaming mouse

All of this inside a full size Case with 6 high performance fans and a few LEDs

I know the PSU went bad since I was having problems with random shutdown/restarts during games. I swapped out my RAM to test and see if it was it and now my computer wont even post. Even after I remove all peripherals but one of my RAM stick, both of which passed MEMTEST with flying colors. The power supply, dvd drive, one of the HDs, and the case and fans were kept from my old build. The power supply was an Ultra X3 1000W. Based on the above build, would another 1000W cut it or do I need to go bigger?

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Best solution

jacknhut

January 6, 2012 9:10:16 AM

Biotite said:

You don't need more than a quality 850W PSU to power that rig, although 1000W wouldn't hurt either.

Depend on your budget, I would suggest going for a quality brand 850W rather than going for a so so or mediocre brand with 1000W.
Here are some of the best quality PSU you can get:
Seasonic X 850W Gold http://www.amazon.com/Seasonic-ATX12V-EPS12V-Power-Supp...
Corsair AX 850W Gold http://www.amazon.com/Corsair-Professional-850-Watt-Cer...
OCZ ZX 850W Gold http://www.amazon.com/OCZ-Fully-Modular-80PLUS-Performa...
Corsair HX 850W Silver http://www.amazon.com/Corsair-Professional-850-Watt-Cer...

The top 3 are Gold rated in Power efficiency and the last one is silver rated (not as good). All 4 are of highest quality and are highly rated in a review by Jonnyguru (received 9+ point out of 10).