3Com CS/2500 Installation Manual page 75

WARNING: To avoid possible electrical shock, the server's power cord
must be disconnected from the power source before accessing its
internal components.
You need a #1 and a #2 Phillips screwdriver. A pair of needlenose pliers
is also helpful for removing and replacing screws. Follow this procedure:
1 Make sure server power is off and the power cord is unplugged.
2 Remove the cover, as described in "Removing the Cover" on page 5-6.
3 Perform the steps illustrated in Figure 5-7.
a Disconnect the cable bundle that connects the power supply to the
motherboard (step 1 in Figure 5-7).
b For Model CS/2600 only, disconnect the cable attached to the rear of
the daughtercard mounted on top of the disk drive bracket. Pull it
toward you to expose the mounting screw that fastens the power
supply module to the bottom of the chassis (step 2 in Figure 5-7).
c Remove the mounting screw (step 3 in Figure 5-7).
d Slide the power supply module toward the front of the server and lift
it out (step 4 in Figure 5-7).
The bottom of the power supply has two keyhole slots that fit over
standoffs located on the bottom of the chassis. You must slide the
power supply far enough forward to lift it off the standoffs.
e For Model CS/2600 only, remove the power wiring harness from the
connector on the rear of the diskette drive (step 5 in Figure 5-7).
Upgrades 5-11