Hi, I recently installed 6GB of Ram (all of which is recognized in BIOS btw) in my system in order to install Vista Home Premium x64, However when i installed my new graphics card ATI Radeon HD 2900 Pro my computer beeped three times at me violently and then the screen went black. I have a Q6600 Processor and an Asus P5NESLI mobo. Could this beeping to do with my 500W Antec Earthwatts PSU or my motherboard? Please Help Thanks.
I do believe your PSU actually can't provide that much needed power. What I'd do is to get a second hand PSU laying here and there, and plug in your drives, fans and CD drives. Put a paperclip in the green hole and any black-wired hole. Turn that on and turn the PC on.