i recently purchased a biostar790ta 128M and provided it with a 600w smps,it worked fine for 2-3 days but now it does not start ,the two LED's on the motherboard does not show power ,everything else seems to be working including the processor fan,smps fan, cdrom, hard disk ,can u tell me whats the problem.
No beeps?
Build outside the case with minimum components.
Test for beeps. Add components until you find the problem.
Could be a dead motherboard.
Check the outside of the processor or check with a different processor.