Removing The Boot Rom - Cisco 7200 Series Instructions Manual

Step 7
This completes the SIMM replacement procedure. If you plan to replace the boot ROM, proceed to
the following section "Removing the Boot ROM." If you do not plan to replace the boot ROM,
proceed to the section "Replacing the Input/Output Controller" later in this document.

Removing the Boot ROM

The ROM monitor is in located in socket U20 on the I/O controller (refer to Figure 5). To remove
the boot ROM device, complete the following steps:
Step 1
Step 2
Step 3
Step 4
Figure 15
Step 5
Caution
When all SIMMs are installed, check all alignment holes (two on each SIMM), and
ensure that the spring retainer is visible. If it is not, the SIMM is not seated properly. If
any SIMM appears misaligned, carefully remove it and reseat it in the socket. Push the
SIMM firmly back into the socket until the retainer springs snap into place.
Attach an ESD-preventive strap between you and any unpainted router surface.
Place the I/O controller flat on an antistatic mat or surface and locate the boot ROM
device.
Carefully remove the new boot ROM from its packaging and verify that the new boot
ROM is the correct version for this upgrade. Return the new boot ROM to its packaging.
Place the angled tips of the IC removal tool beneath the ends of the boot ROM (refer to
Figure 15).
Enlargement of the IC Removal Tool and Boot ROM
Squeeze the arms of the IC removal tool and gently, but firmly, pull up on the boot ROM
until its pins are clear of the socket. Apply even pressure to both tips of the IC removal
tool (refer to Figure 16). It might be necessary to gently rock the IC removal tool and boot
ROM end to end until the boot ROM is free of the socket.
To prevent bent pins, pull the boot ROM straight up and out of its socket.
Removing and Replacing Memory SIMMs and the Boot ROM
19