Can't turn my compuer on

Check on *********** board that your CMOS jumper is in normal mode otherwise change it - also check any beep sound aswell as you remove all the cables ie.. IDE cables, front panel cables I mean only the 2 power cables to the motherboard and try to start the pc by shorting the power switch pin with a screwdriver see the display coming or not ????

IF it is a branded pc - you have to buy the same companies motherboard, normal motherboard will not work with branded pcs.

http://dell-driver.driveray.com/dell-drivers/r_1_1.shtml