What could be possible reason ? I doubt either Mobo or SMPS.
The mobo has diagnostic LED which light up during POST in case of any error/ issues.
The SATA & PATA IDE LEDs are switching on in my case during POST. This have written this to Gigabyte support three times, but they aren't ready to accept that SATA controller on mobo can damage the HDD. I've also got my SMPS checked at cooler master 's service center and they say it ok.
I've tried changing my seagate's baracuda HDD with WD's Green cavier, but result is same. WD's HDD developed bad sector after one month. My PC usage is very limited to browsing & mailing. There are no games installed.
can anyone suggest whats could be the possible cause of the problem.