NOT ABLE TO PLAY GAMES AFTER FORMATTING WINDO

Hello , I HAVE OLD VINTRON ELIXIR@HOME PC(CELERON 433 MHz,RAM 512 ,40GB HD) RECENTLY I FORMATTED MY PC WITH xp 2 AND SINCE THEN NOT BEEN ABLE TO PLAY ANY GAME AS GRAPHICS BECOME TOO SLOW DURING GAME. HOW EVER I CAN PLAY SMALL FLASH GAMES WITOUT ANY PROBLEM BUT CANNOT PLAY ANYOTHER GAMES AS REFRESH RATE BECOMES TOO SLOW AND THE GAME PLAYS AS SOME ONE IS PAUSING IT AFTER EVEVY SECOND. I TRIED TO UPDATE MY GRAPHICS ON INTEL SITE BUT IT SHOWS DRIVERS ARE CURRENT.I EVEN TRIES TO SEE GRAPHICS DETAIL IN ADAPTER PROPERTIES , HERE IT SHOWS ..CHIP TYPE; intel(R)82810 ... DAC Type; Internal ...Memory size;32MB ... Adapter String;Intel(R) 82810 Graphics Controller...."BIOS Information;....."( NOTHING BOIS INFORMATION IS BLANK ) . SOMEONE SAID THAT MOTHERBOARD DRIVERS ARE NOT INSTALLED SO I TRIED TO FIND THEM ON NET BUT COULD NOT FIND THEM AND UNFORTUNATELY I DONT HAVE MOTHERBOARD CD . SO PLEASE SOMEONE SUGGEST ME WHAT TO DO