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Memory Components
Table 1
Table 1
RSP2 Memory Components
Type
Size/Speed
1
DRAM
32-MB
to 128-MB
SIMMs
NVRAM
128 KB
Flash memory 8-MB SIMM
16-, or 20-, or Flash
memory card
Flash boot
256 KB
5
ROM
1. 32 MB of DRAM is the default DRAM configuration for the RSP2.
2. A system configuration file is contained in NVRAM, which allows the Cisco IOS software to control several system variables.
3. Only Intel Series 2 Flash memory cards can be used with the RSP2.
4. Type I, Type II, and Type III PC Cards can be used in PC Card slot 1, and Type I and Type II PC Cards can be used in slot 0.
5. The HSA feature requires boot ROM Version 11.1(2) or a later release of 11.1.
6. Downloading ROM monitor images to the Flash boot ROM device is not supported.
DRAM
DRAM stores routing tables, protocols, and network accounting applications and runs the Cisco IOS
software. The standard (default) RSP2 configuration is 32 MB of DRAM, with up to 128 MB available
through SIMM upgrades. DRAM is contained in up to four SIMM sockets: U21 and U33 (also called
bank 0) and U12 and U4 (also called bank 1). When upgrading DRAM, you must use SIMMs from Cisco.
(Also see the
To prevent memory problems, DRAM SIMMS must be 3.3-volt (V) devices. Do not attempt to install
Caution
higher-voltage devices in the RSP2 SIMM sockets.
For RSP2 DRAM upgrade procedures, refer to the
on page
NVRAM
The system configuration, software configuration register settings, and environmental monitoring logs
are contained in the 128-KB NVRAM, which is backed up with built-in lithium batteries that retain the
contents for a minimum of 5 years. When replacing an RSP2, be sure to back up your configuration to a
remote server so you can retrieve it later.
OL-4923-01 B0
shows the memory components on the RSP2.
Quantity Description
1 to 4
32-, or 64-MB SIMMs (based on DRAM required)
for main Cisco IOS image functions
1
Nonvolatile SRAM for the system configuration
2
file
1
Contains the Cisco IOS images on the RSP2
Up to 2
Contains the Cisco IOS images on up to two Flash
3
memory cards
1
Flash EPROM for the ROM monitor program
image
"Compatibility Requirements" section on page
71.
4
6
"Replacing and Upgrading DRAM SIMMs" section
Location (see
Bank 0: U21 and U33
Bank 1: U12 and U4
U18
U1
Slot 0 and slot 1
U30
12.)
Figure
2)
5
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