Cisco 4700M Manuale di aggiornamento - Pagina 21

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Caution

touch the surface components to avoid damaging them.

Step 4

If you have completed all memory upgrade procedures, proceed to the section "Replacing Network

Processor Modules" on page 22.

Replacing the ROM Monitor EPROM Device

The ROM monitor is stored in an EPROM device on the Cisco 4500 and Cisco 4500-M.

(See Figure 8 on page 12.) Two versions of the label of the ROM monitor EPROM are shown in

Figure 16.

Figure 16

To upgrade the ROM monitor, replace the old EPROM labeled "SIERRA ROM MON" with the new

EPROM labeled "ROM MON V5.2(4)."

Take the following steps to replace the ROM monitor EPROM.

Step 1

Step 2

Step 3

Caution

components backward will damage them.

Proceed to the next section, "Replacing Network Processor Modules."

You will feel some resistance, but do not use excessive force on the SIMM and do not

Check the alignment of each SIMM to make sure that it is straight and that the alignment

holes are lined up with the plastic socket guides.

Cisco 4500 and Cisco 4500-M ROM Monitor Memory Devices

Old device

SIERRA

ROM MON

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>jr

Open the chassis and expose the ROM monitor EPROM following the procedures in the

sections "Accessing the Internal Components of the Router" on page 5 and "Removing

Network Processor Modules" on page 8.

With the ROM monitor EPROM in location U68 exposed (see Figure 8), gently extract the

old EPROM with an EPROM extraction tool or a small ﬂat-blade screwdriver and set the

old ROM monitor EPROM aside.

Insert the new ROM monitor EPROM in the empty socket in the orientation shown in

Figure 8, being careful not to crush any of the bottom pins. To straighten out a bent pin, use

needlenose pliers. Align the notch in the new ROM monitor EPROM with the notch in the

ROM socket, ignoring the orientation of the label.

The notch on the EPROM must match the notch on the socket on the card. Installing the

Upgrading Cisco 4500, Cisco 4500-M, Cisco 4700, and Cisco 4700-M Memory

Memory Replacement Procedures

New device

ROM MON V5.2 (4)

17206202 U68

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