hi new to the forum ok so i brought the pny geforce gts 450 from pc world i got it home and installed it the computer booted up fine went through the set up still no issues it said it needed to restart so i agreed it rebooted and with in 2 minutes it said it wanted to shut down and i didn't know why so i kept cancelling it untill i got pissed off with it and shut it down when i booted it back up about 3 seconds after it shut down and the monitor said no signal i was like wtf ? so i turned it off and on again still no signal so i took the graphics card out and booted it up i thought it would work but it didn't so the fist thing i tried was resetting the BIOS by taking out the CMOS battery for 24 hours overkill i know but i still didn't work i took everything out and then put it back in again i tried a different psu and still nothing i'm not hearing any beeb codes or a single beep to tell me my processor is ok i tried 1 stick of ram in at a time still nothing so i put it in its box and thought i'll just get a new mother board seeing how the one i have is aztec so 2 days went by and my mate said his geforce gtx 980 is getting all the low specs on his games so i suggested that he borrow my gts 450 cuz i wanted to see what it can handle so we took it round his removed his gtx 980 and installed mine and the same thing happened to his what happened to mine just said no signal on his monitor so i took it out and put his old one in and nothing happened could someone please help me sort this out!!