Computers will not run without power, and will not run well without proper power.

It is critical that each computer have clean power! A file server must have a dedicated line with an isolated ground. Your computer must have a battery backup. Make sure all components of that computer are plugged into the battery (CPU, Monitor).

Keep in mind that as batteries age, the amount of power and the amount of time they can provide power declines. APC says the life expectancy is about 3 years. This life expantancy can be substantially shortened if the battery is used often. Depending on the quality of the power in your area, you may want a larger capacity UPS and may even need to consider installing a line conditioner to assure that the power is clean.