Cisco PRP-2 Installation And Configuration Manual page 13

Table 4
Type
SDRAM
NVRAM
Flash memory
Flash boot
ROM
HDD
1. Default SDRAM configuration is a total of 4 GB (2 x 2GB) system memory for PRP-3. Bank 1 (U15) must be populated first.
2. If both banks of the PRP-3 are populated, bank 1 and bank 2 must contain the same size DIMM.
3. NVRAM is not user configurable or field replaceable.
4. ATA Flash disks are supported in the PRP-3.
5. PRP-3 provides an onboard internal CompactFlash and also an external CompactFlash. The external CompactFlash in PRP-3
6. Hard disk drives that are not from Cisco are not supported.
SDRAM
SDRAM stores routing tables, protocols, and network accounting applications, and runs the Cisco IOS
software. The default PRP-2 configuration includes 1 GB of ECC SDRAM. DIMM upgrades of 1 GB
and 2 GB are available for the PRP-2. You can mix memory sizes as long as the larger DIMM is placed
in bank 1 (U15).
The PRP-3 provides more system memory than PRP-1 and PRP-2. PRP-3 is shipped with 2 GB system
memory in each DDR2 DRAMs for a total of 4 GB and provides an upgrade option for a total of 8 GB
(4 GB x 2 DRAM).
Caution Only Cisco-approved memory is supported. Do not attempt to install other devices or DIMMs in the
DIMM sockets not approved by Cisco. (See
OL-17436-01
PRP-3 Memory Components
Size
1
2 GB (Default) for each
DDR2 DRAM for a total
system memory of 4 GB,
option for upgrade to total
system memory of 8 GB (4
GB each).
3
2 MB (fixed)
2 GB (default) or 4 GB
(optional) Flash disks
8 MB
6
80 GB SATA
You can use one or both banks to configure DDR2 DRAM combinations of 2 GB or 4 GB for the PRP-3. DIMM devices that
are not from Cisco are not supported.
replaces the two PCMCIA slots (slot0 and slot1) of PRP-2.
Quantity Description
2 Two 2-GB default DDR2
DRAM for main CiscoIOSXR
software functions. Provision
for optional upgrade to 4 GB
also possible to provide total
system memory of 8 GB.
1 System configuration files,
register settings, and logs
2 Contains Cisco IOS XR
4
(Internal software images, system
and configuration files, and other
External user-defined files on two
Compact CompactFlash.
Flash)
1 Flash EPROM for the ROM
monitor program boot image
1 Contains log and crash
information for specific
Cisco IOS XR versions
Table 26 on page 79.)
Product Overview
Location
U8 (bank
2
1)
U10 (bank
2)
—
Internal and
External
Compact
5
Flash
—
—
13