hi, i am currenty tryin to build my first computer. but i have one problem. i havej connected everything like the power supply to the motherboard etc. but when i try to turn the power on, nothin happens. i hve checked all the connections, i used the moherboard manual to connect everthing. i noticed there is an Auxiliary connecton coming from the power supply which is not connected, but there is nowhere it goes. can some1 please help me??

Do you get a beep when you first turn it on ?

Recheck your front panel connections. Some times what is actually on the board differs than what is in the user manual. If you are building a pentium 4 that is what the auxilary connection is used for . if you are building an AMD based computer that auxilary connection is not used. Also reseat the main connector and check to make sure switch on power supply is in the proper position.

Same thing happened when I built my first one. My problem was I didn't have the case power switch plugged in right.