BleepingComputer.com: PSU not good enough for Radeon 5850?

I haven't been getting the best performance I think from my Radeon 5850. Is there a recommended voltage/amperage for it and PSU specs someone might suggest for it? The one I have right now is this one: http://www.newegg.ca/Product/Product.aspx?...N82E16817341019

It's 12V rails supply amperages of 18a, but I don't know if that is enough for this card. My current PSU seems to be failing anyway, so I'll be getting a replacement of the same. Albiet, if I need a better one I could just eBay the replacement and use the new one. Any advice or PSU suggestions would be greatly appreciated.

This post has been edited by Sei: 28 April 2010 - 08:01 PM

I found this the other day: http://www.xbitlabs.com/articles/video/dis...10_3.html#sect0

That PSU should have more then enough umpf to push that card, what else are you running in that system?

Also have this as the CPU http://www.newegg.ca/Product/Product.aspx?...N82E16819103727

Don't think I have anything else hugely power consuming.

I'm getting stuttering in high graphics games like Rappelz and Starcraft 2 though. Maybe it's related to my PSU burning out?

This post has been edited by Sei: 28 April 2010 - 11:25 PM

how many hard drives and optical drives, and other cards?

Sei, on Apr 28 2010, 10:26 PM, said:

Stuttering isn't really indicative of a power problem.

A power problem will usually cause bluescreens, reboots, or the game to crash back to desktop. Stuttering can be caused by insufficient system memory, background processes/programs, insuffient CPU horsepower, or depending on resolution/video settings, an overworked videocard. Sometimes drivers play a part.

First things I look for are intermittent hard drive activity during games when the stuttering occurs. Does the HDD activity LED flash when in a game? Look in task manager and see what is running, and how much CPU time is getting eaten up. I have seen antivirus programs/firewalls cause oddball behavior with online games as well. Just eliminate one problem at a time.

Only one HDD and one dvd drive and running on 8GB of RAM, which I've tested for errors recently and found fine.

I really doubt memory, CPU, GPU or background is the cause. I'll attempt to eliminate other things once I get a new PSU in.