Cisco Systems 7500 Series Manual De Usuario
9-9
Cisco 7500 Series Installation and Configuration Guide
OL-5008-03 B0
Chapter 9 Replacing DRAM on the Route Switch Processor
Upgrading or Replacing DRAM DIMMs on the RSP4 and RSP8
Removing RSP4 and RSP8 DIMMs
This section describes the procedure for removing RSP4 and RSP8 DIMMs.
If you are upgrading from 64 MB to 256 MB, you must replace both DRAM DIMMs; therefore, the
following procedure is required; however, this procedure is not required if you want to add one DIMM
to a DRAM configuration that uses only one DIMM. For example, if you want to upgrade from 32 MB
to 64 MB or from 128 MB to 256 MB, you need to add one DRAM DIMM to U13 (RSP4) or U15
(RSP8); therefore, proceed to the section
following procedure is required; however, this procedure is not required if you want to add one DIMM
to a DRAM configuration that uses only one DIMM. For example, if you want to upgrade from 32 MB
to 64 MB or from 128 MB to 256 MB, you need to add one DRAM DIMM to U13 (RSP4) or U15
(RSP8); therefore, proceed to the section
.
Caution
To prevent ESD damage, handle DIMMs by the card edges only.
Use the following procedure to remove the existing DIMMs:
Step 1
Turn off the system power and remove the RSP4 or RSP8. (If you have a Cisco 7505, see the procedure
in
in
; if you have a Cisco 7507 or 7507-MX, see the procedure in
; if you have a Cisco
.)
Step 2
Place the RSP4 or RSP8 on an antistatic mat or pad and ensure that you are wearing an antistatic device,
such as a wrist strap.
such as a wrist strap.
Step 3
Position the RSP4 or RSP8 so that the faceplate is toward you and the edge connector is away from you.
Step 4
Locate the DRAM DIMMs on the RSP4 or RSP8. The DIMMs occupy U10 bank 0 and U13 bank 1
(RSP4), and U12 bank 0 and U15 bank 1 (RSP8).
(RSP4), and U12 bank 0 and U15 bank 1 (RSP8).
Step 5
For the DIMM you want to remove, pull down the lever on the DIMM socket to release the DIMM from
the socket.
the socket.
Figure 9-6
Using the RSP4 or RSP8 DIMM Socket Release Lever to Remove DIMMs
Step 6
When one end of the DIMM is released from the socket, grasp each end of the DIMM with your thumb
and forefinger and pull the DIMM completely out of the socket. Handle the edges of the DIMM only;
avoid touching the memory module or pins and the metal traces (the metal fingers along the connector
edge of the DIMM) along the socket edge.
and forefinger and pull the DIMM completely out of the socket. Handle the edges of the DIMM only;
avoid touching the memory module or pins and the metal traces (the metal fingers along the connector
edge of the DIMM) along the socket edge.
Step 7
Place the DIMM in an antistatic bag to protect it from ESD damage. You can use the DIMMs that you
remove in other compatible equipment.
remove in other compatible equipment.
Step 8
Repeat
through
for the remaining DIMM if required for your upgrade.
This completes the DIMM removal procedure. Proceed to the next section to install the new DIMMs.
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