DEC 3000 Model 400S Installation & Owner's Manual page 19

Verifying the Installation Site
Caution
Do not impede airflow by obstructing the front and
rear of the unit. Exceeding internal thermal limits
can affect system reliability/availability.
Warning
The system weighs 34 kg (75 lbs). To prevent
personal injury and equipment damage, ensure
that the system is contained in an enclosure that
can be stabilized when the system is pulled out on
its slides.
Preparing to Install the DEC 3000 Model 400S/600S/700S AXP Rackmount Server 2–3