10-10 SPARC Enterprise M4000/M5000 Servers Service Manual • August 2009
10.1.9 Accessing the 60-mm Fan Backplane
Caution – There is an electrical hazard if the power cords are not disconnected. All
power cords must be disconnected to completely remove power from the server.
1. Power off the server.
This step includes turning the key switch to the Service position, confirming that
the POWER LED is off, and disconnecting power cables. See “Powering the
Server Off Using Software” on page 4-12.
Caution – To prevent the equipment rack from tipping over, you must deploy the
antitilt feature, if applicable, before you slide the server out of the equipment rack.
Note – When drawing out the SPARC Enterprise M4000/M5000 Server to the front,
release the cable tie holding the PCI cables on the rear of the server.
2. Remove the fan cover.
This step includes deploying the rack’s antitilt features (if applicable), sliding the
server out of the equipment rack, removing the 60-mm fan units, and removing
the fan cover. See “Removing the Fan Cover” on page 5-8.
Caution – Use proper ESD grounding techniques when handling components. See
“Safety Precautions” on page 1-1.
3. Remove the CD-RW/DVD-RW drive backplane.
This step includes removing the CD-RW/DVD-RW Drive Unit and the CD-
RW/DVD-RW drive backplane. See “Removing the CD-RW/DVD-RW Drive
Backplane of the SPARC Enterprise M4000 Server” on page 6-17.