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Beginner

CISCO2911 Dram mismatch between show ver and post output

Hi,

I wanted to see if anyone knows of an IOS bug or has seen this before.  If not then i will start testing different IOS versions to see if i can find a fix before i open a TAC case.  I didnt see anything in the release notes about it but its occuring on this new 2911 i just got. 

Show version and post dram to not match up.  When it posts it shows that it has 512MB dram.  After it boots it shows the unit has 1GB of dram.

From Post:

System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2012 by cisco Systems, Inc.

Total memory size = 512 MB - On-board = 512 MB, DIMM0 = 0 MB

CISCO2911/K9 platform with 524288 Kbytes of main memory

Main memory is configured to 72/-1(On-board/DIMM0) bit mode with ECC enabled

From show version:

yourname#

yourname#show ver

Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.2(4)M3, RELEASE SOFTWARE (fc2)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2013 by Cisco Systems, Inc.

Compiled Tue 26-Feb-13 03:42 by prod_rel_team

ROM: System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1)

yourname uptime is 1 minute

System returned to ROM by power-on

System image file is "flash0:c2900-universalk9-mz.SPA.152-4.M3.bin"

Last reload type: Normal Reload

Last reload reason: power-on

Cisco CISCO2911/K9 (revision 1.0) with 872448K/53248K bytes of memory.

Processor board ID <removed>

3 Gigabit Ethernet interfaces

4 ISDN Basic Rate interfaces

4 ATM interfaces

1 terminal line

1 Virtual Private Network (VPN) Module

Integrated NT1's for 4 ISDN Basic Rate interfaces

DRAM configuration is 64 bits wide with parity enabled.

255K bytes of non-volatile configuration memory.

250880K bytes of ATA System CompactFlash 0 (Read/Write)

Show platform output:

yourname#show platform

On-board SPD data :

Size of dimm                 = 512 Megabytes

DIMM0 SPD data :

Memory Slot Empty

1 REPLY 1
Beginner

CISCO2911 Dram mismatch between show ver and post output

Hi,

Sorry i think i found the answer.  Seems to be a software bug with this IOS version. 

https://tools.cisco.com/bugsearch/bug/CSCud84346

Symptom:

Using the c2900-universalk9-mz image may show in the show version output has having more memory than what is present

Conditions:

This problem is see only seen on 15.2(4)M or later images

Workaround:

None

Known Fixed Releases:

(6)

15.3(1.11)T

15.3(1.13.1)PIH21

15.2(1.2.3)PI22

15.3(2.3.1)CG

15.2(4)M3.9

15.2(4)M4

Known Affected Releases:

(1)

15.2(4)M2

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