Apple Xserve (Early 2008) - Manual (Page 9)

Chapter 1 Installing the Xserve 9
Choosing a Suitable Location
The Xserve is designed for rack mounting. Review the following paragraphs to be sure
the location you choose satisfies the Xserve space, electrical, and environmental
requirements.
Rack Compatibility
You can install the Xserve in any open or closed (cabinet-style) 19-inch-wide four-post
rack from 24 to 36 inches deep using threaded-hole or square-hole rails, depending on
which came with the Xserve. The Xserve occupies 1.75 inches (1U) of vertical rack
space.
Important: Your rack should satisfy the American National Standards Institute (ANSI)/
Electronic Industries Association (EIA) standard ANSI/EIA-310-D-92, International
Electrotechnical Commission (IEC) 297, and Deutsche Industrie Norm (DIN) 41494.
Rack Stability
Make sure the rack is stable and strong enough to support installed equipment. When
working with equipment in the rack, never slide out more than one unit at a time, and
keep all other equipment secured in the rack.
WARNING: Do not put a display or any other device on top of the Xserve. Extra
weight can strain your rack’s rails, which can make your rack unstable. If your rack is
unstable, the Xserve and whatever is on top of it can fall on you. Also, any weight on
top of the case could damage essential components inside the Xserve.