Power Source for 4850

Hey!

I'm thinking on upgrading my video card to a 4850. But I don't know for sure if my power source can handle it.

My PC:
AMD Athlon 64 X2 Windsor 5200+ 2.6GHz
AliveXFire-eSATA2
Kingston 1GB 800Mhz x2

Power Source:
Xilence SPS-XP500

+3,3V +5V +12V +12V -12V -5V +5VSB
28,0A 30,0A 20,0A - 0,8A - 2,0A

Notice that it has only 20A on the +12V.

For more info on the power source please visit: http://www.xilence-power.com

So ... what do you think, can my power source handle a 4850? Or at least a 8800 GT?

You'll be okay.

I'd be a little worried about the 20A. Also, a lot of the lower tier PSUs (Xilence is one of them) can't even hold up to the factory ratings. I would get a solid PSU with 28-30A on the 12V rail.

Earthwatts 430 - $40 w/ free shipping
It is from a good OEM (Channel Well, if I remember correctly) and has 30A on the 12V rail (I'd suggest the Earthwatts 380 @ 28A, but it currently has a higher price on Newegg).

OOPS! Did I make a mistake by falsely assuming the psu was rated at 500 watts? My bad!

i'm running my 4850 with a mild overclock (690/1093) on an OCZ 500W power supply with dual +12V rails each putting out 18A.

James found a nice looking PSU. Antec, Corsair, OCZ, and PC Power & Cooling all make good ones.

Ignore the labels on most PSUs; they were created in Marketing, not Engineering. Look for a review of it on jonnyguru.com, hardocp.com, hardwaresecrets.com, or similar site that does COMPETENT, TECHNICAL reviews of PSUs, including load testing and waveform analysis.

What is it running at the moment - we can then look for something that takes the same or less power to be on the safe side...

I don't see what the current gfx card is - so I ask again... What is it running at the moment?

We can't guarantee any of the cards will work... Unless you want to replace the PSU, I would limit yourself to a 9500 GT

The absolute worst? Sparks, house burning down, etc.

Or maybe just smoke, dead PSU, dead MB, maybe a few other damaged parts too.

If the PSU is well protected against overload, nothing bad would happen but the video card won't work either. Some times the PSU can handle things with the video card idle (as in, in Windows Explorer or Word), but not with the video card under load. In those cases you get artifacts or blue screens in games.