i had replugged everything.
the computer was starting earlier, it was having some boot issues. tried to correct it and now it doesn't even starts.
for the specs:
cpu: intel dual core 1.80GHz
ram: 1G DDRII
hdd: 160 GB SATA
if anythong more needed tell me i'll provide the information.
and 1 more thing, the last time it started i was trying to format the disk with my windows xp cd which had shown the blue screen of death.
this machine is my home desktop. i live in other place for studies. last time i opened it , i had broken the grub of fedora. (it was dual boot xp and fedora 13). so now i tried to fix it up by reinstalling xp. tried 3 times , but it never brought the screen after loading the necessary components. when it brought the screen i pressed the repair key and it brought the blue screen of death and after that now it doesn't starts.
problems during fixing up:
tried to install ubuntu two times but it failed at installing it in the harddisk.
tried to install xp, it restarted 3 times in midst of loading the files.
If you have another HDD put it in your rig but not plug your previous then check is it giving you problem?
It might possible it causes by HDD but im not sure.
But if another HDD run up without problems then your MOBO is fine.