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

Raj Gurung raj at evryx.com
Fri Apr 17 19:04:57 PDT 2009


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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