Cisco Router Cisco 3600 Configuration Note

14 Cisco 3600 Series Memory Upgrade Configuration Note
Upgrading Flash Memory
Figure 8 Installing DRAM SIMMs
Caution
It is normal to feel some resistance, but do not use excessive force on the SIMM, and do
not touch the surface components.
Step 5 Repeat Step 2 through Step 4 for each SIMM.
If you are finished replacing SIMMs, continue with the section “Replacing the Cover” later in this
document.
Upgrading Flash Memory
Cisco 3600 series routers contain one or two 80-pin Flash-memory SIMMs for storing the system
software image. These SIMMs are not interchangeable with DRAM SIMMs. You can upgrade Flash
memory by replacing the existing 4-MB SIMM with an 8-MB SIMM or by adding a SIMM to the
second Flash-memory socket.
SIMMs are manufactured with a polarization notch to ensure proper orientation and alignment holes
to ensure proper positioning, similar to those shown in Figure 9. Cisco 3600 series Flash SIMM
cards are installed with the connector edge down, the polarization notch near the front of the chassis,
and the component side facing the right side of the chassis.
Figure 9 Flash-Memory SIMM Orientation and Alignment
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1. Insert the SIMM into the socket 
at an angle from vertical.
The socket guide posts fit through 
the holes in the SIMM.
3.
The locking springs clip the back
of the SIMM.
4.
View from front of chassis
2. Push the top of the SIMM 
down and back.
Alignment holes
Connector edge
Polarization notch
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Cisco Router Cisco 3600 Specifications

General

Brand	Cisco
Model	Router Cisco 3600
Category	Network Router
Language	English