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Corsair CX430 enough for a Radeon 4850?

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  • Graphics Cards
  • Graphics
Last response: in Graphics & Displays
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November 28, 2012 8:26:20 PM

Last week I bought 4 CX430 PSU's on sale for $17 after rebates (430 Watt) to replace several P.O.S Logisys 480 Watt (which have EXTREMELY high failure rates that came with the cases of some older systems. These have been long overdue to be replaced. At the time, I failed to remember that the recommended PSU for a Readeon 4850 was 450 watt. 2 of the systems are running 9800 GT cards (which reccomends a 400 Watt PSU) on the box, so I am positive those 2 are fine. The others run a PowerColor 512 MB Radeon 4850 on an Athlon II X2 245 2.9GHz CPU (no overclocking) and a single hard drive. I know I am riding the margin... but certainly they over-rate PSU requirements on Graphic Cards to have a bit of a safety magin and tolerance for the variations in CPU, motherboard, fans, harddrives and everything else that draws power don't they? You guys think this will be fine?

More about : corsair cx430 radeon 4850

a b U Graphics card
November 28, 2012 8:32:09 PM

It needs a minimum of 450 and a 6-pin power connector, but I've seen people run cards on way lower PSU's and it works fine. The only thing that would happen if it wouldnt be able run would be that your computer would boot up and run slow, or when it comes into load you might freeze, or blue screen. But corsair builder series PSU's are pretty high quality and you should be fine.

http://www.amd.com/us/products/desktop/graphics/ati-rad...
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a b U Graphics card
November 28, 2012 8:34:35 PM

Easily enough.
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November 28, 2012 9:57:50 PM

http://www.xbitlabs.com/articles/cases/display/system-w...

Quote:
the total power draw of the computer is rather modest: 189W. A 300W power supply will ensure a 50% reserve of wattage, and there is absolutely no point in purchasing anything better than a 400W PSU for this configuration.


So the answer to the OP q:
Quote:
Corsair CX430 enough for a Radeon 4850?

Yes. Yes it is. Easily.
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a b U Graphics card
November 28, 2012 11:43:30 PM

Well 4850 need 148W on peak w/o oc.

148W GPU
65W CPU
16W Ram
15W Hdd
25W Dvd
=269W
Add some oc = 300 W

So delivers 370W on the 12 v rail and up to 430W on 12 V rail still being stable.

http://www.bit-tech.net/hardware/2012/09/13/nvidia-gefo...

So this means that you are ok !

Good Luck
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a c 365 U Graphics card
November 29, 2012 2:37:43 AM

As long as you are not overclocking you should be okay.

The Radeon HD 4xxx series were power hogs.
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November 29, 2012 4:51:52 AM

Best answer selected by ufo_warviper.
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November 29, 2012 4:58:21 AM

Thankyou EVERYONE for your help and overwhelming confirmation. I had a tough time narrowing down the "best answer", and I just want to let you all know that I appreciate each and every one of you for taking the time to reply and give meaningful input. It looks like the margins for the Power Supply Ratingings are marked up ~50% of what is actually drawn on a typical system from you guys's replies. Is this generally the case with with the listed PSU "minimum" requirements? Or is this a special case? I would think its done because there is a VERY wide range of hardware any user might run in conjunction with a video card, from low end/low power parts to multi-core multi-drive configurations with a board decked out with all RAM slots filled. So the req's on the box gotta factor those extreme cases basically?
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a b U Graphics card
November 29, 2012 9:44:16 AM

Yes there is and it took you the average wattage (except the GPU that i said it can peak 148W ). As being an old gen card will work hard to play new games so it will usually peak that W.

The same thing about the CPU. He will consume less than 65W(or more) but just to be sure.

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