laptop restarts but wont boot.

[Sparky]

HP 2000-214NR AMD laptop Win 7 Home
Came to me with fan error 902. Replaced the fan and it wont power up. Unplugged the cmos battery and it booted. Did a bunch of updates and it restarted every time. Shut it down and now wont power up. Reset cmos battery and it boots up. Updated the latest BIOS and it turned off and wont power up.
What is causing it to not power up unless I reset the cmos?
Bad battery?

 

[Sparky]

Laptop now turns on after a hard reset but now wont turn off. I select shutdown and it restarts. First the darn thing would not turn on and now it wont turn off.
AMD APU