HP A4500A - VMEbus Single Board Computer 744 Motherboard Hardware Manual page 99

Stacking Servers
Hewlett-Packard will support stacking up to six rp24xx servers if the following conditions are met and the
correct procedure followed.
HP will not support the stacking any other A-Class server.
NOTE
CAUTION In order to remain within weight limitations and to prevent tipping, do not stack servers more
than six high. Each server weighs approximately 23 kg (50 lbs). DO NOT lift more than one
server at a time.
Always use the strap when stacking servers, regardless of the number. Hewlett-Packard will
not support or warrant servers that are damaged as a result of being improperly strapped or
stacked more than six servers high.
Follow the steps listed below:
Step 1. Remove the rubber "feet" from the packing material and place one rubber foot squarely on each of
the four corners on the bottom of each server.
Step 2. Lay the enclosed binding strap out flat and straight.
WARNING
Step 3. Place the first server over the strap and position the strap so that it can be firmly cinched down on
the top server.
Step 4. Carefully set the remaining servers (up to five) on top of the first server so that the four feet of each
of the remaining servers are squarely on the top of the server below.
WARNING
Step 5. Center the strap midway between the front and rear of the stack and pull the ends up over the top
server. Thread the flat end through the loop end and pull it snug. Press the Velcro® pieces together
firmly and lay them flat on the top cover of the top server.
Chapter
DO NOT attempt to lift the server by the front bezel. The plastic bezel is
attached by pressing it onto four ball-tipped posts located on the front of
the server cover and pulls off with very little pressure.
The bezel WILL NOT support the 23 kg (50 lb.) weight of the server.
Failure to observe this precaution will cause damage to the server and may
cause personal injury.
Do not cinch the strap so tightly that the chassis buckles.
Failure to heed this precaution may cause internal components to be
damaged and/or the server cover may not seat correctly to seal the server
from dirt and dust.
Stacking Servers
107