Sun Microsystems Netra T2000, Service Manual

Page: 81 / 138

Chapter 4 Replacing Cold Swappable FRUs 67
Electrostatic Discharge Safety
Electrostatic discharge (ESD) sensitive devices, such as the motherboard, PCI cards,
hard drives, and memory cards require special handling.
Caution –
The boards and hard drives contain electronic components that are
extremely sensitive to static electricity. Ordinary amounts of static electricity from
clothing or the work environment can destroy components. Do not touch the
components along their connector edges.
Use an Antistatic Wrist Strap
Wear an antistatic wrist strap and use an antistatic mat when handling components
such as drive assemblies, boards, or cards. When servicing or removing server
components, attach an antistatic strap to your wrist and then to a metal area on the
chassis. Do this after you disconnect the power cords from the server. Following this
practice equalizes the electrical potentials between you and the server.
Use an Antistatic Mat
Place ESD-sensitive components such as the motherboard, memory, and other PCB
cards on an antistatic mat.
Common Procedures for Parts
Replacement
Before you can remove and replace parts that are inside the Sun Fire T2000 server,
you must perform the following procedures:
■
“To Shut the System Down” on page 68
■
“To Extend the Server to the Maintenance Position” on page 69
■
“To Perform Electrostatic Discharge (ESD) Prevention Measures” on page 72
■
“To Disconnect Power From the Server” on page 72
■
“To Remove the Top Cover” on page 72
■
“To Remove the Front Bezel and Top Front Cover” on page 73