NEC Express5800 320La, User Manual

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CRU Replacement and Server Upgrades 4-51
Before You Begin
Before you begin, please review the following cautions, warnings, and general
guidelines.
! WARNING
Before doing the procedures in this subsection, make sure
that your system is powered off and unplug all AC power
cords. Failure to disconnect power before opening your
system can result in personal injury and equipment damage.
All voltage is removed only when the power cord is
unplugged.
!
Avoid excessive vibration and shock. Dropping an electronic component
can cause serious damage.
!
Do not disconnect or remove parts other than those specified in the
procedure.
!
Do not touch I/O connector pins.
!
All screws are Phillips-head, unless otherwise specified.
!
On completion of installation, perform a power-on test. If a fault occurs,
verify that the installation was performed correctly. If the problem
persists, see "Problem Solving" in Chapter 5.
Static Precautions
An electrostatic discharge (ESD) can damage disk drives, option boards, and
other components. You can provide some ESD protection by wearing an
antistatic wrist strap attached to chassis ground when handling system
components.
Electronic devices can be easily damaged by static electricity. To prevent
damage, keep them in their protective packaging when they are not installed in
your system.
Preparation
Use the following procedure to prepare the tower-based unit for installation of
the new Internal Device Bay hardware components.
1. Observe the safety and ESD precautions listed at the beginning of this
chapter.
2.
Unlock and open the front door on the tower cabinet system. See Opening
and Closing the Front Door of the Tower Cabinet earlier in this chapter.
3. Power off the system. Ensure the power cords are unplugged from the AC
wall outlet.