Hi,thanks for using fixya,
Switch off the computer and open pc cover.
First check the ram, clean by eraser or with solvent and install again ,if the problem same install thre ram to another computer either it damage or not .If the problem is same change ram.http://en.wikipedia.org/wiki/DIMM
If same as before, remove the cmos battery or clear the cmos jumper and hold " on off "switch for 40 seconds. Install battery again and start pc .
Now please check the "smps" by another new or by your "smps" to another pc to confirm either it damage or not.http://site7.way2sms.com/jsp/Main.jsp?id=6BEFB035C72C9BC7795F7E8D4A2E60B9.a403
If same as before now please take a risk and ready to chip label repair,
1.Change all the capacitors, beside the processor, with the help by nearest technician.
2.Set an identification Mark, on the bios chip, by the permanent marker because you need to remove and install it.It could not be possible for all mother board .
3.Remove bios chip from base , clean with solvent and install it proper again.
4.For Intel mother mother ,install a flopy drive and switch on the power and,follow the flopy drives "led light", either it glow or not.
If the flopy drives led light on,download bios filre for your intel mother board ,paste on flopy.follow the bellow link for download.
5.Now don't switch off your motherboard at the time of updating the bios,so please use an ups,and insert the flopy, along with bios file.Set the cmos jumper in recovery mode( just change the normal position ),and switch on motherboard, hope, through this proceses, should recver the mother board.
If the problem is same, I will recoment you for new motherboard.
If you are helped you can rate on the 4 thumbs and leave a short comment,because,
this is the free side and I can get the chance, to help people like you .
Thanks for using fixya .