Cisco 12000 - Series Chassis Modular Expansion Base Anleitung zum Ersetzen Handbuch - Seite 25

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Cisco 12000 - Series Chassis Modular Expansion Base Anleitung zum Ersetzen Handbuch

Figure 10

For the DIMM you want to remove, use the socket release levers to eject the DIMM.

Step 4

•

Caution

Handle the edges of the DIMM only. (See

DIMM, the metal traces, or fingers, along the edge of the DIMM, or the pins in the DIMM socket.

As one end of the DIMM is released, grasp the top corners of the DIMM with the thumb and forefinger

Step 5

of each hand and pull the DIMM completely out of its socket.

Immediately place the DIMM in an antistatic bag to protect it from ESD damage.

Step 6

Repeat

Step 7

Installing a DIMM in a Line Card

Note

If you are upgrading packet memory, both DIMM sockets of a given pair (either the transmit buffer or

the receive buffer) must be populated with an SDRAM DIMM of the same type and size.

ISE, Engine 4, and Engine 4+ line card packet memory is not field serviceable. Only qualified Cisco

Caution

personnel should service these memory modules. See the

To install new DRAM or SDRAM DIMMs in a Cisco 12000 Series Router line card, follow these steps:

Attach an ESD-preventive wrist strap to your wrist and connect the leash to one of the ESD connection

Step 1

sockets on the front of the chassis or to a bare metal surface on the chassis.

Place the line card on an antistatic mat so that the faceplate is nearest to you.

Step 2

To prevent router and memory problems, all DIMMs installed in the line card must be 3.3-volt devices.

Caution

78-4338-16

DIMM Socket with Dual Release Levers

For a socket with a single release lever (see

DIMM.

For a socket with dual release levers (see

eject the DIMM.

Step 4

through

Step 6

for any remaining DIMMs that you want to remove.

Removing and Installing Line Card Memory

Figure

7), pull down that release lever to eject the

Figure

10), pull down on both levers at the same time to

Figure

8.) Do not touch the integrated circuit devices on the

"Installing a SODIMM" section on page 29

Cisco 12000 Series Router Memory Replacement Instructions