rivatuner

am overclocking ma evga 6800gs 256mb....... i overcclocked it to 427/1192 from 400/1100 ........ nd the temp while running 3dmark05 goes upto a max of 76-77..... got a max score of 5277..... ma config is.... amd 2800+ 64bit 1gb ram asus k8n mobo now the prob is that...... i cant overclock...