I have emachine w3400 and i have another emachine that wont power up. so i took the power supply from the w3400 and used it to power up the other emachine , than i put the power supply back to the w3400 and now it wont power up , i had removed the front penal form the w3400 so i lost where the 3 wires goes back on the pins , 3 wires one for power switch, hdd led, power led. you think these 3 wires making my computer not powering on, i plugged the power led and then i plugged the power supply the power led comes on , but non of the fans coming on. please help its crazy

Computers & Internet - AMD - eMachines Desktop System w/ 17'' CRT Display, 2.0 GHz Athlon...