Hey! I'm new here and I really could use a hand. Today I went off and bought myself a new chassi, one more graphic card and a motherboard, all brand new. My old motherboard was okay but a bit outdated. Besides, I've been thinking about doing crossfire with my 4850. Took me a couple of hours to set things up. After everything was done I started it up (I was suprised it even started). The only problem that came up was "Unknown CPU Detected. Update BIOs for full power" or something like that. I tried starting it up, got a blue screen. I read up on some forums and people with the same problem said that you'd have to update BIOs. The problem here was that I recieved no CD from my motherboard box. So I went on my brothers computer, which I am at right now, and downloaded the latest bios for my motherboard. Burned it on a CD and then used it to update bios. Everything ran smooth as well. It said that it had to restart, everything was still fine. Then after it resetted, nothing happened. I tried to start up the computer but nothing happens. A blue light starts glowing, along with the gfx card for a mere second. But that's all! So here I am tired, frustrated and disappointed. The manuals didn't tell me jack-all about anything of this. Everything I plugged in was correct. My old computer was built from scratch so I did everything on my own and it worked. Any ideas? I think I fried the motherboard for some reason, but I can't get to bios and fix it. I read online as well that you could take out the battery and decharge it, but I'm not that skilled to be playing with the chips. ANY suggestion how to fix this is GREATLY appreciated. Thank you! (And sorry about the wall of text) And yeah, here's my spec: Asus ATI Radeon HD 4850 1GB (2 in xfire) Asus - Socket 775 - ATX nForce 780i (Striker II Formula) Intel Core 2 Duo E8400 3,0GHz / 6MB / 1333MHz Socket 775 Corsair XMS2 4096MB DDR2 PC2-6400 800MHz Seagate Barracuda 7200.12 500GB SATA II Windows Vista x64 bit Tell me if you need more information. Edit: After letting the computer cool for a bit, it starts up, only to be shut down after about 20 seconds.