Cisco 4000 Series Upgrade Manual page 19

Removing the Cisco 4500 and Cisco 4500-M Boot Helper Flash Memory SIMMs
The boot helper image (Rxboot image) is stored in Flash memory on the Cisco 4500 and
Cisco 4500-M. Take the following steps to replace the 4-MB SIMM with an 8 or 16-MB SIMM.
(See Figure 14.)
Figure 14
Step 1
Step 2
Caution
damaged by mishandling.
Step 3
Proceed to the next section "Installing Boot Helper Flash Memory SIMMs."
Installing Boot Helper Flash Memory SIMMs
You upgrade boot helper Flash memory by replacing the existing SIMM (labeled "System Flash
Memory 0" in Figure 8 on page 12) or by adding a second SIMM to the empty socket (labeled
"System Flash Memory 1" in Figure 8 on page 12).
Take the following steps to add Flash memory SIMMs and refer to Figure 8 for the SIMM locations.
Step 1
Removing the Boot Helper Flash Memory SIMM
Pull the tabs away from
each other with your
thumbs, bracing your
forefingers against the
posts. Raise the SIMM
to a vertical position.
System-code SIMM card
Attach an ESD-preventive wrist strap and ensure that it makes good contact with your skin.
Connect the equipment end of the wrist strap to the metal back plate of the chassis, avoiding
contact with the connectors.
On the Cisco 4500 and Cisco 4500-M motherboard, locate the SIMM card socket for
RxBoot Flash memory. (See Figure 8.)
Handle SIMMs by the card edges only. SIMMs are ESD-sensitive components and can be
To lift the SIMM out of its socket, pull the locking spring clips on both sides outward and
tilt the SIMM free of the clips. (See Figure 14.)
On the Cisco 4500 and Cisco 4500-M motherboard, locate the Flash memory SIMM
sockets shown in the lower right corner of Figure 8 on page 12.
Upgrading Cisco 4500, Cisco 4500-M, Cisco 4700, and Cisco 4700-M Memory
Polarization notch
Memory Replacement Procedures
19