I think I killed my Motherboard...

Heres what happened:

I took all my components, that have been sitting on my work desk for weeks now and assembled them into my new case. It took me hours to set up all the components as I took great care into wiring everything with the best that I can in cable management. I closed up both sides of the case to have the full effect when the lighting comes on, then said a prayer and pushed the power button. Everything spins up, but nothing else happens. No power to kbd, no power to mouse(usb), no video signal, no beep or flashing lights, no nothing. After slowly unplugging everything (except the memory and processor) there was no change.

Now just a few days ago, I assembled the pc on my work desk to transfer some files and it worked FLAWLESSLY, and for hours. I took great care in avoiding static shock, always having the components on padded surfaces, trying my best to be "anti-dust", etc. The only components I added were the front panel USB and audio headers, which I painstakingly assembled pin by pin with the mobo manual in hand to make sure all the connections were correct. Everything else in the setup remained consistent with the previously sucessful boot-up attempt. I am not sure what exactly is wrong, but I just bought this motherboard 3 months ago, and it was bulletproof UNTIL the day when I want to fully assemble my computer.

Do you think my mobo is at fault here?

-Cool-

Well, I couldnt figure out which was which. Both the USB headers were added to the setup when I put it in the case, but that was the only thing added, and I couldnt figure out why it broke when the setup changed so little.

A friend and I fiddled with it today and it turns out that 1. my jumper settings were all wrong, and that combined with 2. my CD-RW is malfunctioning, made the whole system not work. We've fixed it now by testing each component, fixing all the jumpers, and removing that CD-RW drive from the system.

-Cool-