cisco router: 'Warning during size main memory test'

Feb 04, 2009 4 Replies

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tg 17 years ago

*** Warning during size main memory test, expected bus error does not occur above 128 mb of main memory C2600 platform with 131072 Kbytes of main memory.

-------------- I swapped some good tested memory from another 2651xm (2 x 128Mb sticks) router but I still got the above error. Does this mean the board is faulty? if I only use one stick of 128mb the router boots fine with no errors, and I can use either slot, but it's when both slots are used I get the error. Swapping the sticks around made no difference. Is there any kind of major reset one can do of the mainboard? thanks for any advice.

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bod43 17 years ago

It would appear that the software might be expecting at most

128M but there is more. [2651XM maximum memory]

formatting link

"support memory increases to 256 MB of DRAM (with the correct ROM monitor [ROMmon]). "

Looks like you may need to change your rommon, however I have not read all of the details and you should check yourself.

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tg 17 years ago

thanks for your response and the cisco link bod43, I will check the rommon thing and I hope it is that

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Doug McIntyre 17 years ago

Extremely few 26xxXM routers shipped with the 256M capable BootROM. It was almost always a later addon. The chip isn't in circuit flashable, it is a physical chip swap. MemoryX has them.

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tg 17 years ago

ok Doug thanks for your response and I'm glad to hear it's probably the rom chip. I'm waiting for a rom removal tool to arrive and then I'll swap it with a known good 256mb-capable chip and see.

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