wiki How's mission is to help people learn, and we really hope this article helped you.
Now you are helping others, just by visiting wiki How.
One that comes to mind is to backup the current BIOS, and profile (if so supported). Backing up really isn't an option on most, and when you upgrade, it could make the saved profile no longer work.
I would say, if you are constantly having power cuts, don't do it - and on the same topic, it doesn't hurt to have a UPS on your machine as best practice, but it isn't worth getting one just for this!
The best way to accomplish this is to keep your motherboard's BIOS and chipset drivers up to date.