PC keeps restarting

[come on man]

yesterday my PC had black screen after it loads the hardware..it couldn't even start booting.Today I changed the CMOS battery and HDD from another PC and now it tries to boot the windows,but keeps restarting..any ideas?

 

https://www.youtube.com/watch?v=V33DPgEnCkc&feature=youtu.be

 

I used the Repairing tool,but nothing happens

[Ansuex]

That seems like a difficult one..

I would try to backup your data using another computer and reinstall windows, see if it boots again.

[come on man]

3 minutes ago, Ansuex said:

That seems like a difficult one..

I would try to backup your data using another computer and reinstall windows, see if it boots again.

I will wait for another suggestions and if nobody answers,I will try to change OS

[Brett_Bst]

whats the specs of the pc ands did it happen before you changed the battery and hdd or after ?

[come on man]

4 minutes ago, Brett_Bst said:

whats the specs of the pc ands did it happen before you changed the battery and hdd or after ?

2.4 ghz or 2.6 ghz(dual core amd x64),~3GB RAM,700GB HDD(I used 160GB HDD in the video) and VGA(i can put my dedicated GPU if I want). This PC was like that for months..I was lazy to give it to service and yesterday I decided to try to fix it.I turned it on and It loaded the hardware..as you saw "American Megatrends" etc and then it had black screen for forever..it didn't even load the windows.Today I chanced the CMOS battery and the HDD and now at least it tries to boot,but it restarts,no idea if it's OS or hardware issue.

P.S I wanted to change CMOS battery,because I thought it's original CMOS battery was damaged,because of bad hardware settings etc.And now it's kinda better,but restarts on booting