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3Com CS/3000-48 Installation Manual page 74

Cs/3000 series communications server

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Replacing the Cover
3 Remove the EPROM from the motherboard.
Using a small slotted screwdriver or an EPROM-pulling tool, carefully pry the
old EPROM out of its socket, making sure not to bend the pins.
As you are removing the EPROM, note its orientation. The notched edge is
toward the right (when viewed from the front of the server).
4 Place the old EPROM in the antistatic foam pad.
Keep the old EPROM until the server has been powered up and tested with
the new firmware. Refer to Appendix B, "Startup Messages."
5 Remove the new EPROM from its antistatic foam shipping pad.
If the pins have been bent, carefully push the side of the EPROM against a
flat antistatic surface so that the pins are at right angles to the body and fit
easily into the sockets. Orient the new EPROM in the same way as the old
EPROM.
CAUTION: Failure to orient the EPROM correctly will destroy it when the
server is powered on.
6 Being careful to line up the pins with the socket, firmly push the new
EPROM into its socket until it snaps into place.
CAUTION: Be sure that no pins are bent under the body of the EPROM. Each
pin must be inserted properly into its socket.
7 Replace the cover, as described in the next section.
When you have finished the upgrade or servicing, always replace the
server's cover before plugging it in.
WARNING: To avoid a fire hazard, always replace the cover. Powering on the
server without a cover can cause it to overheat. This will void the warranty.
To replace the cover, do the following:
1 Make sure all three EMI clips are attached to the upper lip of the back panel.
Upgrades
5-17

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Cs/3000Cs/3100