Radeon 4850 Help

I just upgraded to a visiontek 4850 from an nvidia 7650gt

The card works fairly well but its lags out bad at times. I have the defaults on and have even turned off all the antialiasing and whatnot. But still when i try to play combat arms it works fine at times but during lots of gunfire it starts to lag out pretty bad.

Before you ask yes i did uninstall the nvidia drivers and i have the newest CCC downloaded and installed

Can someone help?


Its running with an Amd 64 5000+, 4 gigs of ram, running windows xp, and not sure on resolution at the moment its on a small hand me down lcd (which never gave issues before hand)

xp 32 bit...

and yes thats what it is..and like when i do fire it seems like everything is in slow mode even tho its happening faster...and i only have it set to medium graphics in the game...

well we use them with similar cpus at the office and have no problem with them...but they are used for autocad and such here and not for gaming...

What PSU are you using? Perhaps the new card is simply trying to draw more power than it can provide (please list name, output and output on the +12v side).
Sometimes this is because of driver conflicts. The problem is that neither Nvidia nor ATI seem to know how to make a thorough uninstaller and components often get left behind by it, causing problems.
Try this: Download the latest drivers. Download and install Driver Sweeper. Set a Restore Point (importaint). Uninstall your current drivers and restart in Safe Mode (hold F8 while it is booting). Run Driver Sweeper and clear out any existing ATI and Nvidia components but be careful , it can remove vital Registry entries so examine every item before removal. Restart and install the drivers as nomal. This may or may not cure the problem but it will remove the most common driver related issues.
One other thing I have found helpful is to turn off or reduce the quality of shadows.

well tried that driver sweeper and now when i reinstall CCC it wont load cause a file is missing from registry and so on..

talked to a few of my gamer friends and they said "reformat..." a few of them have had this issue as well...

hrm..may have to try that..i was tempted to just pull the HD and use a backup one for now and just copy all my stuff over after fresh install...

im just gonna pull the drive and slap in a new one and slave the other one on a usb adapter to transfer all my files over so i just have to back everything up once...

its all good...she was due for a fresh install anyways...i just have been procrastinating..will let yall know if problem is fixed after format...

wont be for a few days most likely due to work and whatnot

A fresh install *should* cure your woes. Update us once it's done.

i was thinking its the mobo/cpu...but im told its the mobo...