Hi guys, I own a 4870 and it used to heat up a lot, the only solution available was to increase fan speed, but dear god, it sounded very loud even with my headphones on. So I surfed the net and people recommended aftermarket cooler, the Accelero S1 R2 in special, so I bought it and installed, after a few days, when playing CoD4, the loading screen messed up (like whole screens of artifacts), I restarted my PC, and Vista loaded up but with Standard VGA and CC said it didn't find any ATI compatible card, so I'm like wtf , but my screen was still connected to my 4870. So next thing is I shut it down and now it never turns up, my MSI motherboard stops at the light where it initializes the display card. Someone please help me. I don't live in USA,my whole rig was brought from there.