Maintaining Router Hardware 53
Figure 7 Removing the Screws from the Bottom of the Router Chassis
Replacing the Boot ROM When a Boot ROM is damaged or when data that becomes corrupted because of
a software failure and cannot be corrected, it should be replaced.
Router 3000 Boot ROMs are located at the same position on the mainboard, as
shown in .
Figure 8 Boot ROM Location
Caution: Use a chip extractor to replace the Boot ROM.
To replace the Boot ROM:
1 Insert the top end of the chip extractor into the Boot ROM socket, turn inward
slightly, withdraw the extractor upward and lift the Boot ROM out.
2 Put the Boot ROM into the static shielding bag.
3 Insert the end of the chip extractor into the socket of the new Boot ROM.
4 Position the Boot ROM so that the beveled edge of the socket matches the
beveled edge on the Boot ROM and plug it into the Boot ROM socket.
Caution: Be careful not to damage or bend the pins at the bottom of the Boot
ROM. If the pins are bent, straighten them with needle-nose pliers.
Boot ROM location
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