Hello, i've purchased this card a few days ago and installed on a P4 2,8 MGz, 1,5GB DDR SDRAM with Win7 32-bit and no matter what i try, i can't make this card play HD videos, it even lags on full screen 360p ones.
I've applied the latest Catalyst 11.1 drivers but still nothing.I tried to update the BIOS through a small program that Gigabyte provides but the screen freezes when i run it and then the PC reboots or it remains freezed forever.
Just to say, this PC had a ATI 2600 Pro before and was playing HD videos with no problems at all.
Tested on KM Player, GOM player, VLC Player and YouTube videos.
Any suggestions? Gigabyte last reply was to test it on another system and if the problem remains, then return it back to the shop i bought it...
First, are you using the AGP Hotfix version of Catalyst? It can be found at the link below. Second, did you completely remove the previous drivers before you installed the 4650? If not, download and install driversweeper (below) and then install the Hotfix version. Report results back. Good luck!