[svlug] how accurate is `dmidecode -t memory`?

Robert Hajime Lanning lanning at lanning.cc
Fri Apr 17 19:10:52 PDT 2009


Raj Gurung wrote:
> Hi list,
> 
> Recently, i came to check memory limit on one of the box.I did 
>  `dmidecode -t memory` on the machine(IBM x3250 M2 4190 system) and it 
> showed that the "Maximum Memory Capacity" was 8GB, (shown below)
> 
> [root at node1 ~]# dmidecode -t memory | more
> # dmidecode 2.7
> SMBIOS 2.5 present.
> 
> Handle 0x0019, DMI type 16, 15 bytes.
> Physical Memory Array
> Location: System Board Or Motherboard
> Use: System Memory
> Error Correction Type: Multi-bit ECC
> *Maximum Capacity: 8 GB*
> Error Information Handle: Not Provided
> Number Of Devices: 4
> 
> How accurate is the dmidecode output? 
> I am planning to upgrade to 16GB with 4x4G and run PAE kernel. Has 
> anyone experienced it, or will that be a problem?
> 
> Thanks,
> raj
> 
> 
> ------------------------------------------------------------------------
> 
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IBM lists that machine as a max of 8GB.
http://www-03.ibm.com/systems/xbc/cog/x3250m2/x3250m2aag.html

So, it will not recognize the 4GB DIMMs.  You can use up to 2GB DIMMs.

-- 
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       --MCP




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