It's probably a hardware problem.
The moving of the computer might just be a coincidence
If you added new hardware the OS would reboot several times to get the
right virtual device drivers loaded.
If the OS just keeps on rebooting, you should look for a power problem
with your motherboard.
Open your case and see if your capacitors are swelling or leaking.
These capacitors control power distibution on the board and if they
go bad you should replace the board (easier than repair)