Disconnect and remove EVERYTHING from the mobo except the PSU connector, the front panel power-on switch connector and the front panel power-on l.e.d. connector. This means NO CARDS PLUGGED IN, AND NO DRIVES CONNECTED. Insert the processor ensuring it is plugged in correctly and that you have not inadvertantly bent over any of the pins. Insert the memory module - check it's seated correctly. Check that the CPU fan connection is the correct way round. Not familiar with the mobo you have but check any jumpers/dip switches etc., are correctly assigned for your proc and memory. Do NOT connect or plug in any cards, drives etc., at this stage.
Now, does the front panel l.e.d. come on when you power it up? Does the CPU fan run? If you have one available you could check for the presence of +12vdc at the CPU fan connector. Looking down on this connector with the 3 pins running left to right and the plug locator on top, the +12vdc pin is in the middle and the negative is to the right. If this still doesn't work, then either the PSU supply to the mobo is faulty, or the mobo itself isn't working properly.
Hope that helps...
ROGER - GØAOZ.