I cannot say 100% but it sounds like a hard drive problem. I am 90% sure of that. The operating system not found error means that no data is detected on the hard drive. This happens when you format...

Your motherboard could very well be bad. Your data is probably still recoverable, but you would need to take your hard drive out and hook it up as a secondary to a computer. Doing this would also...

Try it with only one video card. It might be conflicting which to start up to for some reason. Do you have on board video as well? It may have defaulted to that.

Your power adapter is probably dead, try finding someone with the same adapter or go buy a new one that is compatible. If it is not the adapter, the power connection to your motherboard may have...

try cleaning it with an air compressor or vaccume. If I had more time, I'd respond with more, but I g2g. Later

Shane

Usually there is some other problem and the switch not working is just a result of it. I would say the switch being bad would probably be the least likely problem, however it is not impossible for...

Alright, get some new power cables and trash your old ones. Unplug the power cable to your PC and press the power button several times. Plug the power cable back in. Thats just a little trick that...

Worst you would need is a new HD, but if its not booting to the CD or floppy, try turning off the CPU unplugging the power from your cpu, take out the cmos battery and put it back in. Then start it...