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Overview of the Cisco 12008
Cisco 12008 Gigabit Switch Router Installation and Configuration Guide
1-38
PRP Memory Components
Table 1-4 lists the memory components on the PRP.
Table 1-4 PRP Memory Components
1 Backplane connector 6 Ethernet ports
2 Flash SIMM (Socket number P3) 7 Auxiliary port
3 SDRAM DIMMs
Bank 1 - Socket number U15
Bank 2 - Socket number U18
8 Console port
4 Ejector lever 9 Handle
5 Flash disk slots (covered) 10 Display LEDs
Type Size Quantity Description
SDRAM
1
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
SRAM
2
2. SRAM is not user configurable or field replaceable.
2 MB (fixed) — Secondary CPU cache memory functions
NVRAM
3
3. NVRAM is not user configurable or field replaceable.
2 MB (fixed) 1 System configuration files, register settings, and logs
Flash
memory
64 MB SIMM
4
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 disks
5
5. ATA Flash disks and Type I and Type II linear Flash memory cards are supported. 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