4-9
Cisco 7304 Network Service Engine Installation and Configuration
OL-3967-01
Chapter 4 Removing and Installing the NSE
Removing and Replacing the SDRAM SODIMM
Removing a SDRAM SODIMM on the NSE-100
This section provides a procedure for removing the SDRAM SODIMM on the NSE-100.
Caution
The DDR-SODIMMs on the NSE-150 motherboard are configured in a “butterfly” configuration,
meaning the SODIMMs are designed to not lay flat on the motherboard like the other components. The
DDR-SODIMMs should not be forced to lie flat on the board. Forcing the DDR-SODIMMs to lie flat on
the board can cause damage to the SODIMM or the NSE-150 motherboard.
These NSE-150 SODIMMs are also not field-replaceable.
Follow these steps to remove the existing SDRAM SODIMM:
Step 1
Power down the router and disconnect input power, if it hasn’t already been done.
See the
“Powering Down the Router and Disconnecting Input Power” section on page 4-2
and follow
the directions for powering down the router and disconnecting input power.
Step 2
Remove the NSE-100, if it hasn’t already been removed.
Go to the
“Removing the Network Services Engine” section on page 4-4
and follow the instructions for
removing the NSE-100. Then return to this section.
Step 3
Place the NSE-100 on an antistatic mat or pad and ensure that you are wearing an antistatic device,
such as a wrist strap.
Step 4
Locate the SODIMM. See
Figure 4-6
.
Step 5
Release the spring latches from the SODIMM, and release the SODIMM from the socket (see
Figure 4-6
).
Caution
To prevent ESD damage, handle the SODIMM by the card edges only (see
Figure 4-7
). Place the
removed SODIMM on an antistatic mat and store it in an antistatic container.
Figure 4-6
Releasing the SODIMM Spring Latches
Step 6
When both ends of the SODIMM are released from the socket, grasp the ends of the SODIMM with
your thumb and forefinger and pull the SODIMM completely out of the socket. Handle the edges of the
SODIMM only; avoid touching the memory module, pins, or traces (the metal
fingers
along the
connector edge of the SODIMM).
Step 7
Place the SODIMM in an antistatic container to protect it from ESD damage.
1
SDRAM SODIMM
2
Spring latches
80750
1
2
2
