Hey all, My new computer is a "Medion Akoya P5202-E" With art number: 10017445 (windows 8) It has an NVIDIA GeForce GT 620 graphic card. Original Psu 350w My old computer is a "Emachine EL1700" (windows vista) Original Psu: 220w I have bought a Psu from 430w (to have a 6 pin connector for the GTX 650ti graphic card) When installing this Psu in my EL1700 both graphic cards works fine Now I have 2 brand new graphic cards: 1: NVIDIA GEFORCE GT 630 2: NVIDIA GEFORCE GTX 650TI (Asus) (Both cards WORKS on my old computer!) Now the problem: When installing the new Psu 430w into my medion computer everything works fine. When I remove the graphic card from my new computer and put the 630 or the 650 in it the computer wont start (getting 1 long beep and 2 x short beep) this means problem with graphics card. Now I have retested my graphic cards in my old computer and they both works 100% fine. so there is a problem probably something within my computer settings? I have searched and searched but couldn't find any solution! so thats why I'm posting it here I am from Belgium so forgive me for my bad grammar! Any suggestion will be tried and I am 100% sure all cables are connected probably when I need to install my GT630 I don't even need to unplug any cables so thats not the problem!