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Info. about Memory

yavuz.ozdemir
Level 1
Level 1

The current system memory configuration is on a router 3640:

SIMM 0 SIMM 1 SIMM 2 SIMM 3

--------------------------------------

32M-DUAL 32M-DUAL

But I'm on a 32bit mode and when I look at the supported configuration, I have :

Supported 64 bit configurations:

SIMM 0 SIMM 1 SIMM 2 SIMM 3

--------------------------------------

4M 4M 4M 4M

8M 8M

8M-DUAL 8M-DUAL

8M 8M 4M 4M

8M-DUAL 8M-DUAL 4M 4M

8M 8M 8M 8M

8M 8M 8M-DUAL 8M-DUAL

8M-DUAL 8M-DUAL 8M 8M

8M-DUAL 8M-DUAL 8M-DUAL 8M-DUAL

16M 16M

16M 16M 4M 4M

16M 16M 8M 8M

16M 16M 8M-DUAL 8M-DUAL

16M 16M 16M 16M

32M-DUAL 32M-DUAL

32M-DUAL 32M-DUAL 4M 4M

32M-DUAL 32M-DUAL 8M 8M

32M-DUAL 32M-DUAL 8M-DUAL 8M-DUAL

32M-DUAL 32M-DUAL 16M 16M

32M-DUAL 32M-DUAL 32M-DUAL 32M-DUAL

Supported 32 bit configurations:

SIMM 0 SIMM 1 SIMM 2 SIMM 3

--------------------------------------

4M

4M 4M

4M 8M

4M 16M

4M 4M 4M

4M 4M 8M

8M

8M 4M

8M 16M

8M 8M 4M

8M 8M 8M

8M 8M 16M

8M 8M 4M 8M

8M 8M 8M 4M

16M

16M 4M

16M 8M

16M 16M 4M

16M 16M 8M

16M 16M 16M

16M 16M 4M 8M

16M 16M 4M 16M

16M 16M 8M 4M

16M 16M 8M 16M

16M 16M 16M 4M

16M 16M 16M 8M

As you can see, there is no dual on 32bit mode, how the router accept the dual mode in 32bit mode? shall I change the bit mode?

Note on SIM2 the 16M is not supported I have to add still one.

SIMM 0 SIMM 1 SIMM 2 SIMM 3

--------------------------------------

32M-DUAL 32M-DUAL 16M

Thanks in advance.

1 Reply 1

b.hsu
Level 5
Level 5

Cisco 3640 routers each contain four single in-line memory module (SIMM) sockets for Dynamic RAM (DRAM): bank 0 (SIMM 0), bank 1 (SIMM 1), bank 2 (SIMM 2), and bank 3 (SIMM 3). A socket corresponds to one bank of memory. Each socket can hold one DRAM SIMM of any size permitted for that router.

For more information please click following URL:

http://www.cisco.com/en/US/products/hw/routers/ps274/products_tech_note09186a0080104555.shtml#background

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