My Computer tried to start for 3 sec then shut off!!!

sigak99

Honorable
Dec 11, 2013
1
0
10,510
I recently installed windows 7. I accidentally remove the cmos battery because it wont boot and says "reboot and select proper boot device". Now, when i start my computer it tried to start for 3 sec then turn off.
Is there a solution i can fix it?

Please Help!!!
I been using my computer for over a year and already check my psu and hard drive. Nothing is wrong that :(