I recently upgraded from an aging Radeon to a 7600GT, hoping to gain a noticeable increase in performance, only to realize that the amount of glitches and problems I've encountered are absolutely horrendous!
Firstly, Windows Live messenger doesnt work. As soon as I attempt to start it my computer becomes slow and sluggish, as if its eating all the CPU power!
Secondly, when I try to play any video files on Windows Media Player or Nero Showtime, the program just hangs and the file never plays, forcing me to end task it.
So, any ideas as to what might be the problem? I've tried the current and previous nVidia drivers, I've reinstalled Windows Live Messenger, and Im currently attempting to download my motherboard drivers (Gigabyte GA-K8NSC 939)
I attempted to read the guide, but its late and my mind is fried. However on the PSU label there is no second rail, it just shows one row that details the voltage (+12v, +5v, +3.3v etc) and the row below it that reads the Amps I'm assuming.
Directly underneath the +12v is 22A, and that's all I can see in the way of 12 volts...
Did you use a program like Driver Cleaner to ensure all traces of the ATI driver were removed? I have seen similar issues like this resolved by reinstalling (updating if possible but at least reinstall) you motherboard chipset drivers. I also suggest you start a support ticket at www.xfxforce.com and PM me the ticket number.
You should be fine. I'm using a 480W with only '16A' on the 12V rail and am using an XFX 6800 GT PCIe and am having no problems with stability whatsoever. I couldn't imagine that the 7600 GT uses more power than a 6800.
Your problem probably lies elsewhere, and to be sure it's not old drivers do a reformat and a fresh install of Windows.
For best results install your drivers in the following order: