6-30 SPARC Enterprise M4000/M5000 Servers Service Manual • August 2009
6.3.9 Accessing the Tape Drive Backplane of the SPARC
Enterprise M5000 Server
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.
Caution – Use proper ESD grounding techniques when handling components. See
“Safety Precautions” on page 1-1.
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 top cover.
This step includes deploying the rack’s antitilt features (if applicable), sliding the
server out of the equipment rack, and removing the top cover. See “Removing the
Top Cover” on page 5-5.
Caution – The motherboard unit is heavy. Two people are recommended to lift the
unit. If the unit is too heavy the memory boards can be removed prior to lifting the
unit.
3. Remove the motherboard unit.
This step includes removing the CPU modules and filler panels, removing the
busbar screws, and removing the motherboard cradle. See “Removing the SPARC
Enterprise M5000 Motherboard Unit” on page 13-8.