will this power supply work?

Custom / CUSTOM
March 29, 2012 at 14:56:30
Specs: Windows 7, 2.8 GHz / 3071 MB
you guys think this power supply is efficient, i know its cheap, $45 for 850w, 12v rails look fine to me, I am going to be powering a radeon 4870 512mb?

http://www.ebay.com/itm/28080209964...


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#1
March 29, 2012 at 16:02:33
It's a generic cheapie that's only 70% efficient. Stick to brand name PSUs. And what do you have that would require 850W? I'd be willing to bet you could easily get by with a quality 500W unit.

How about this Corsair 500W? It's 80 Plus certified, has active PFC, a single 34A +12v rail, 3yr warranty, & it's less than $35 after coupon code & rebate:

http://www.newegg.com/Product/Produ...

You could probably get by with this Corsair 430W for just $17 after coupon code & rebate:

http://www.newegg.com/Product/Produ...

It's difficult to answer when you don't include your complete system specs.

http://www.guru3d.com/article/radeo...

http://www.techspot.com/review/108-...


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#2
March 29, 2012 at 18:26:24
amd phenom triple core x3
3.01 ghz, windows 7
3gb ram

video card on newegg says required 500 watt and i need one with two 6 pin connectors. I see its only 70% but thats still almost 600 watts and thats minimum could be higher than that. I went onto asus site and the power supply calculator says I need around a 600 watt p/s, I may be adding more components to the comp later on.


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#3
March 30, 2012 at 05:46:18
The eBay PSU is a low end piece of crap, but if that's what you want, go for it.

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#4
March 30, 2012 at 07:32:55
I've found over the years that a poor power supply can reduce the lifespan of the motherboard's voltage regulators.

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#5
March 30, 2012 at 11:03:27
yea looks like ill bet getting another p/s, just got the radeon 4870 today, popped it in, and screen just jumps like crazy, unless its the card, but prob not.

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#6
March 30, 2012 at 23:33:23
You Will be better off with a p/s that is rated around 75 to 85 percent and you should be able to get by with a 600 what p/s. besides my dell optiplex 260 I also have and old pc800 but i amn only running a 500 watt p/s in it, with a radeon agp 1 gig graphic card, 3 520gig hard drives and 2 dvd burners and 2 cd burner with a total of 10 2.0 usb ports 2 web cams and an external 2 tretabyte hd

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#7
March 31, 2012 at 13:01:08
which one out of these two?

http://www.newegg.com/Product/Produ...


http://www.newegg.com/Product/Produ...

i do like the modular cabling a lot.


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