Kontron AM4311 - Manual (Page 8)

Preface
Page viii AM4311 User Guide
When Working Inside a Computer
Before taking covers off a computer, perform the following steps:
• Turn off the computer and any peripherals.
• Disconnect the computer and peripherals from power sources or subsystems to prevent electric shock
or system board damage. This does not apply to when hot-swapping parts.
• Disconnect telephone or telecommunications lines from the computer.
In addition, take note of these safety guidelines when appropriate:
• To help avoid possible damage to system boards, wait five seconds after turning off the computer be-
fore removing a component, removing a system board, or disconnecting a peripheral device from the
computer.
• When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable itself.
Some cables have a connector with locking tabs. If you are disconnecting this type of cable, press in on
the locking tabs before disconnecting the cable. As you pull connectors apart, keep them evenly
aligned to avoid bending any connector pins. Also, before connecting a cable, make sure both connec-
tors are correctly oriented and aligned.
CAUTION
Do not attempt to service the system yourself, except as explained in
this user’s guide. Follow installation and troubleshooting instruc-
tions closely.