I have an ASUS P5N-SLI mobo, 3 gigs ram, Geforce 8800 GTS 640mb, sound blaster xtreme gamer, a dvd burner and 4 hard drives. Alright, I shut down my computer last night. Everything was fine. I went to turn it on this morning and heard crackling noises. I turned it off. I turned it back on with the panel open to isolate the sound. It was my PSU. An OCZ Gamexstream 700w. So I go to OCZ, they ask me to jump the PSU to try to get it to start to figure out if its the psu or the mobo. It doesn't start. So I'm RMAing the PSU. So I switch out the PSU with my old 550w PSU. My 8800 will not show send a signal to the monitor. I switch to my old graphics card, which I ran on the 550w before, and it doesn't send a signal to the monitor either. Anyone have any clue what to try next?