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Do I need a new PSU?

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Last response: in Graphics Cards
a b U Graphics card
May 22, 2011 3:36:56 PM

I bought a BFG GS-550W psu about 3 years go (http://www.newegg.com/Product/Product.aspx?Item=N82E168...). It has been working like a champ so far, except it gives a very annoying whine when I have it on. My current system setup is as follows:

AMD Phenom II x4 B50 @ 3.6Ghz
ASUS M4A88TD-V EVO
G.SKILL Ripjaws 4GB (2 x 2GB) DDR3 1600 @ 7-8-7-24
Nvidia 9800 GT
A couple of HDD running at 7800 rpm or whatever..

My question is, would this psu be enough to power a 6950 or 6870? Down the road I will want to Xfire whatever card I get, at which point I am 100% sure I will need to upgrade my PSU, but will it hold out if I get either one of these cards?

More about : psu

a b U Graphics card
May 23, 2011 5:22:37 AM

it sounds like your fan might be dirty or you could have a cap that's going bad in the unit itself. either way no a 550w will not work for crossfiring a pair of 6870's (1 of these uses 247w under load so you might be able to run 1 of them but not with THAT psu).

So your best bet is to get a 750 or higher watt, 80+ certified psu
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a c 194 U Graphics card
May 23, 2011 9:29:00 AM

if the noise is not the PSU's fan then it is internal electronic resonance (sounds like a high pitched squeel generally) which is not easy to fix. a 6870 would be fine, but you may want a new psu for a 6950 600w+. and if you want xfire 750w+
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a b U Graphics card
May 26, 2011 7:30:18 PM

Anyone else have an idea about this?
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a c 153 U Graphics card
May 26, 2011 7:35:26 PM

I had a 650w BFG power supply that sucked massively, it couldn't even power a single GTX 260. If its anything like mine I'd replace it asap.
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May 27, 2011 3:54:15 AM

Have the same Asus card M4a88TD-EVO USB-3 AMD 965+4 3.4ghz,with a XFX Radon 6870 GPU. Runing a 700 wt Coolermaster pro ,with the 8 fans I have runing+ LEDs .Has a rough time with it.I also am looking to run a crossfire with another 6870,But not till a get a PSU,done some Reading and a 850 wt would do a
nice job,NewEGG .com has got some good deals on PSUs
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a b U Graphics card
May 27, 2011 5:53:20 AM

phishy714 said:
I bought a BFG GS-550W psu about 3 years go (http://www.newegg.com/Product/Product.aspx?Item=N82E168...). It has been working like a champ so far, except it gives a very annoying whine when I have it on. My current system setup is as follows:

AMD Phenom II x4 B50 @ 3.6Ghz
ASUS M4A88TD-V EVO
G.SKILL Ripjaws 4GB (2 x 2GB) DDR3 1600 @ 7-8-7-24
Nvidia 9800 GT
A couple of HDD running at 7800 rpm or whatever..

My question is, would this psu be enough to power a 6950 or 6870? Down the road I will want to Xfire whatever card I get, at which point I am 100% sure I will need to upgrade my PSU, but will it hold out if I get either one of these cards?

strait out answer is NO.
You can not run you system if you want those cards....you will need a good brand 850watt I would even step one higher than that especially if your planning on x firing you plug one of those cards in and run a 3dmark 06 test I would be surprised if your psu didnt blow you definitely need to grab another power supply no other answer
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