HP zx2000 Getting Started Manual page 12

Setting Up and Using Your System
1–6
over 50 years, the electronics industry has been aware of the relatively rare, but
possible, threat posed by metallic particulate contamination. During recent
years, a growing concern has developed in computer rooms where these
conductive contaminants are formed on the bottom of some raised floor tiles.
Although this problem is relatively rare, it may be an issue within your computer
room. Since metallic contamination can cause permanent or intermittent failures
on your electronic equipment, Hewlett-Packard strongly recommends that your
site be evaluated for metallic particulate contamination before installation of
electronic equipment.
Getting Started Guide