hello.i got a intel core 2 quad Q8400 the cooler is a Zalman CNPS 9500. 2 hdd with each 500 GB. a asus EAH 5770 vidio card. an asus p5kpl-am-in-roem-si mother board . my PSU is a 650 watt coolermaster. and windows XP.the problem is . after the windows splash mi screen goes black.and the fan of mi GPU goes at the higest RPM. the only thing i can do is pull out mi power or just press 5-10 sec on the start up button. ithe thing i have tryed. i pull out mi bios battery for 1 hour then put it back in and reset mi bios to default. that didnt work. then i boot up in VGA modus that worked but when i put mi resolution higer then 800X600 then mi screen goes blank(black). so i thougt it was the drivers so i go back to VGA modus and removed all the gpu drivers and used driver sweeper and restart then i get the newest drivers but i get the same problem. so i removed the drivers again and then i try mi other vidio card the nvidia 8800 GT and installed the drivers and the problem was gone. i dont now what to do now.