Cisco 3600 Series Note de configuration - Page 9

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Cisco 3600 Series Note de configuration
Table 1
Bank 0
(SIMM 0)
(MB)
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
1. 8 = Single-bank SIMM, 8 MB in size.
Cisco 3640 DRAM
The Cisco 3640 router contains four 72-pin SIMM sockets or banks for DRAM, numbered 0 through
3. (See Figure 5.) Each socket can be filled with a single 32-bit-wide, 72-pin DRAM SIMM. You
can configure DRAM in software as a mixture of shared memory, which is used for data transmitted
or received by network modules and WAN interface cards, and primary or main memory, which is
reserved for the CPU. For further information, refer to the Cisco IOS configuration guides and
command references.
You can configure DRAM in the Cisco 3640 router to be either 32 bits wide or 64 bits wide. The
64-bit mode can use both single-bank and dual-bank SIMMs. To use 64-bit mode, you must install
DRAM SIMMs in pairs of the same size.
Note
configured for 64-bit mode.
Cisco 3620 32-Bit-Wide DRAM Configurations (Continued)
Bank 1
Bank 2
(SIMM 1)
(SIMM 2)
(MB)
(MB)
–
–
4
–
8
–
16
–
16
4
16
8
16
4
16
8
16
4
16
8
16
16
16
16
16
4
16
16
16
8
16
16
In 32-bit mode, the router performs approximately 20 percent slower than when DRAM is
Bank 3
Total
(SIMM 3)
Memory
(MB)
(MB)
–
16
–
20
–
24
-
32
–
36
–
40
4
40
4
44
8
44
8
48
–
48
4
52
16
52
8
56
16
56
16
64
Cisco 3600 Series Memory Upgrade Configuration Note
Upgrading DRAM
9