Cisco Systems NPE-225 Manual De Usuario

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9-16
Network Processing Engine and Network Services Engine Installation and Configuration
OL-4448-12
Chapter 9      Removing and Installing the NPE or NSE
Removing and Replacing the NPE or NSE
Figure 9-11
Handling the DIMM 
Caution
To prevent ESD damage, handle the DIMM by the card edges only. Place a removed DIMM on an 
antistatic mat and store it in an antistatic container.
Step 6
Place the DIMM in an antistatic container to protect it from ESD damage.
This completes the DIMM removal procedure. Go to the 
.
Installing SDRAM DIMMs
Caution
The DIMM is a sensitive component that is susceptible to ESD damage. Handle the DIMM by the edges 
only; avoid touching the memory modules, pins, or traces (the metal fingers along the connector edge of 
the DIMM). To prevent ESD damage, handle the DIMM as shown in 
Note
The NPE-300 contains two banks of SDRAM. Both SDRAM banks are used for all packet memory 
requirements; however, bank 0 is used exclusively for packet memory and is set at a fixed configuration 
in the factory.
 
 
Bank 1 contains two user-configurable SDRAM slots, DIMM slot 2 and DIMM slot 3. (See 
 th
.) Both slots in bank 1 can 
be populated by DIMMs of different sizes; however, the size of the DIMM in slot 2 must be greater than 
or equal to the size of the DIMM in slot 3, and the size of the DIMM in slot 3 can be zero.
1
SDRAM DIMM
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1