Sun Microsystems Enterprise 250 Owner's Manual page 147

4. Grasp the handle and carefully pull the power supply out of the chassis.
Be careful to disconnect the power supply in a smooth motion.
Note – When removing a "hot-pluggable" power supply, do not disengage and
reengage the supply in rapid succession. Always remove a supply completely before
reinserting the same supply or a replacement supply. Rapid seating and unseating of
power supplies will result in false error conditions.
5. If you are not replacing the power supply immediately, install a power supply
filler panel.
The filler panel is needed to maintain proper system cooling and prevent
electromagnetic interference.
a. Insert the filler panel into the bay.
b. Fasten the two Phillips screws that secure the filler panel to the chassis.
What Next
To replace a power supply, complete this task:
"How to Install a Power Supply" on page 130
Chapter 7 Removing and Installing Miscellaneous Assemblies 129