Overview of the Cisco 12008
Cisco 12008 Gigabit Switch Router Installation and Configuration Guide
1-38
PRP Memory Components

Table1-4 lists the memory components on the PRP.

Table1-4 PRP Memory Components
1Backplane connector 6Ethernet ports
2Flash SIMM (Socket number P3) 7Auxiliary port
3SDRAM DIMMs
Bank 1 - Socket number U15
Bank 2 - Socket number U18
8Console port
4Ejector lever 9Handle
5Flash disk slots (covered) 10 Display LEDs
Type Size Quantity Description
SDRAM1
1. Default SDRAM configuration is 512 MB. Bank 1 (U15) must be populated first. You can use one or both banks to
configure SDRAM combinations of 512 MB, 1 GB, or 2 GB. 1.5-GB configurations are not supported.
512 MB, 1 GB, or
2 GB 1 or 2 512-MB and 1-GB DIMMs (based on desired SDRAM
configuration) for main Cisco IOS software functions
SRAM2
2. SRAM is not user configurable or field replaceable.
2 MB (fixed) —Secondary CPU cache memory functions
NVRAM3
3. NVRAM is not user configurable or field replaceable.
2 MB (fixed) 1 System configuration files, register settings, and logs
Flash
memory 64 MB SIMM4
4. Flash memory SIMM is not user configurable or field replaceable.
1 Cisco IOS boot image (bootflash), crash information, and other
user-defined files
Flash disks5
5. ATA Flash disks and Type I and Type II linear Flash memory cards are support ed. See the
“Flash Memory” for Flash disk information.
1 or 2 Cisco IOS software images, system configuration files, and other
user-defined files on up to two Flash disks
Flash boot
ROM 512 KB 1 Flash EPROM for the ROM monitor program boot image