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138 SPARC Enterprise T5120 and T5220 Servers Service Manual • July 2009
Note – Fan modules are the only chassis components that may be removed or
installed with power present.
Caution – Never run the server with the covers removed. Hazardous voltage is
present.
Caution – Chassis covers must be in place while the server is running to ensure
proper air flow within the chassis. Running the server with the covers removed may
result in damage to the equipment.
Related Information
■ “General Safety Information” on page 57
Servicing DVD/USB Modules
These topics explain how to remove and install DVD/USB modules.
■ “DVD/USB Module Overview” on page 139
■ “Remove the DVD/USB Module” on page 139
■ “Install the DVD/USB Module” on page 141
Hard drive backplane “Servicing the Hard Drive Backplane” on page 152
Front control panel light pipe “Servicing Front Control Panel Light Pipe Assemblies”
on page 156
Power distribution board “Servicing Power Distribution Boards” on page 160
Power supply backplane (SPARC
Enterprise T5220 server)
“Servicing Power Supply Backplanes (SPARC
Enterprise T5220 Servers)” on page 167
Paddle card “Servicing Paddle Cards” on page 171
TABLE: Components That Require Removal of System Power Before Servicing is
Performed
Component Servicing procedures