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The replacement steps also apply to the computer with an IO expansion box installed. See "IO expansion
box" on page 19.
Z hook kit
Attention:
• The Z hook kit can work with a partition. The applicable partition thickness is from 30 mm (1.18 inches) to
55 mm (2.17 inches).
• During operation, the computer surface might become very hot and burn the skin. Avoid keeping your
hands or any other part of your body in contact with the computer.
Prerequisite
Before you start, read Appendix B "Important safety information" on page 51 and print the following
instructions.
Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin.
Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes
for the computer to cool.
For access, do the following:
1. Remove any media from the drives and turn off all connected devices and the computer.
2. Disconnect all power cords from electrical outlets and disconnect all cables from the computer.
Replacement steps
.
Chapter 5
CRU replacement
35
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