10-13-2008 10:54 AM - edited 03-06-2019 01:54 AM
Hi all. I just upgraded a 3640 to 128NVRAM and upgraded flash from 16MB to 32MB.
I am getting Unable to boot due to illegal DRAM configuration on bootup.
Any ideas?
rommon 2 > meminfo
Main memory size: 48 MB in 32 bit mode.
Available main memory starts at 0xa000e000, size 49096KB
IO (packet) memory size: 0 percent of main memory.
NVRAM size: 128KB
rommon 3 > meminfo -l
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
10-13-2008 11:18 AM
Hello,
your router sees only
Main memory size: 48 MB in 32 bit mode.
Available main memory starts at 0xa000e000, size 49096KB
IO (packet) memory size: 0 percent of main memory.
NVRAM size: 128KB
what memory chips are you using ?
your only chance to reach 128MB is to use 4 32MB chips with 64bit mode:
32M-DUAL 32M-DUAL 32M-DUAL 32M-DUAL
Hope to help
Giuseppe
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