whats wrong with my pc/graphics card?

January 26, 2011 at 20:25:42
Specs: Windows 7
I have an emachines t5224 pc. I recently upgraded my graphics card from a bfg 8400gs 512mb to an ati radeon 128bit hd4650 gddr2 pci-e2.0 On my 8400gs, games went ok. games like bioshock coh, lostplanet, even lostplanet 2 at some parts, and crysis on medium settings. I played alot of more demanding games to. Now, i upgraded to an hd4650, and i see a huge performence increase in some games, but in most games Its very skippy and laggy, games that should work well doesint work well, some games never got an increase, and some played worse. overall my hd4650 is not performing as expected. i know its not a great g-card but i know it can play all games at medium -low settings. what is wrong with my g-card? is it my other parts of the system? It clearly seems like my graphics card is working below its ability.

here are my specs,

Pentium D 820 @ 2.8GHz
2GB DDR2 RAM @667mhz
300w max powersupply
250GB SATA hard drive
Hd 4650 Gddr2 128bit pci-e2.0 graphics card.

also, I still have some of these prgrams called ntune, and nvidia performance phyx and stuff. But I cant uninstall it unless I take out my new card and put back in the old one. it says " cannot uninstall or operate without nvidia device."

Please someone help me I dont know why my games run like this, even older games like battlefield 2 and 2142 gets like 10-20 fps! and "can you run it" says i can run this game at highest settings. i'm also gaming at 1024x768.

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January 27, 2011 at 05:31:44
Did u un-install nvidia driver? Do u have latest driver from ATi website?
8400gs=crap(not good for gaming)
hd4650=good gaming card(not good for newer games).

We can not fight new wars with old weapons, let he who desires peace prepare for war - PROPHET.

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January 27, 2011 at 07:41:22
You need to uninstall ALL the the nvidia programs. You should have done that before you removed the 8400GS. You should probably uninstall the ATI drivers, shutdown & swap cards, then uninstall the nvidia files. Do you have CCleaner? If not, download & install the Slim verison to purge the temp files & accumulated internet garbage.


Then shutdown again, swap cards & install the latest available AMD/ATI drivers. You can find the drivers here:


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January 27, 2011 at 07:54:04
make sure u remove all ur nvidia drivers from the control panel or using driver sweeper
then install the latest driver for ur 4650
btw the 4650 is a good card for gaming it can handle most games and most decent games on 1024x768 medium settings unlike the 8400gs which is very low and has turbocache

computers are a second home
Fear 3 delayed again,word is no F.E.A.R without monolith

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January 27, 2011 at 13:49:12
Totally agree with the previous posters--you need to completely uninstall all nVidia drivers, and install the ATI drivers for your new card that you installed in your machine. Then things should operate correctly.

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