Solution of computer restart itself frequently.

Potential causes:

                i.            SMPS does not regulate voltage properly.
                ii.           May be the problem of voltage fluctuation of our electricity system.
                iii.           Hard disk is full by data or no free space on HDD.
                iv.          CPU fan is not working properly.
                v.           Processor may be damage.
                vi.          Memory Problem.
                vii.          OS Problem.
                viii.         Virus Problem.
                ix.           Power Supply (SMPS) Problem.
                x.            IDE Drive Problem.
                xi.           Motherboard Problem.


Potential Solution.

                i.               Check SMPS power by Multi meter.
                ii.               Use volt guard and UPS.
                iii.              Delete Unnessary data from hard disk to get free space.
                iv.              Change CPU cooler fan.
                v.               Change other CPU.
                vi.              Check and Replace memory.
                vii.              Repair OS or, Clean pre-installed OS.
                viii.             Scan PC thoroughly and clean or, remove virus and spyware.
                ix.              Check and Replace SMPS.
                x.               Check and by one IDE Drives and replace it.
                xi.               Check and Replace Motherboard