How To Remove A Cpu Fan Tray; Before You Begin; What To Do - Sun Microsystems Fire V890 Service Manual

How to Remove a CPU Fan Tray

Caution – At least one CPU fan tray, one I/O fan tray, and one motherboard fan
tray must be installed and operating to ensure proper system cooling; otherwise, the
system will initiate an automatic thermal shutdown.
The primary CPU fan tray is in slot 1. If a CPU fan tray fails and you do not have a
replacement available, leave the failed CPU fan tray installed to ensure proper
system cooling. The failed fan tray acts as a baffle channeling airflow to cool the
CPU/Memory module. For more information about CPU fan trays, see
Trays" on page
All fan trays feature a hot-swap capability. You can remove and replace a faulty fan
tray without shutting down the operating system or turning off the system power.
For additional details, see
on page
Note – Use only Sun Fire V890 CPU fan trays in the Sun Fire V890 system.

Before You Begin

If you are not performing a hot-swap procedure, complete the following task:
"How to Power Off the System" on page 5
■
Complete these tasks:
"How to Open and Remove a Side Door" on page 21
■
"How to Avoid Electrostatic Discharge" on page 26
■

What to Do

1. Identify the CPU fan tray that you want to remove.
The primary CPU fan tray occupies CPU fan tray slot 1. For information about CPU
fan tray LEDs, see
48 Sun Fire V890 Server Service Manual • October 2005
234.
"About Hot-Pluggable and Hot-Swappable Components"
6.
"About Fan Tray LEDs" on page
"About Fan
266.