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Re: [dmidecode] dmidecode does not show DDR SDRAM size, speed..


From: Jean Delvare
Subject: Re: [dmidecode] dmidecode does not show DDR SDRAM size, speed..
Date: Tue, 19 Apr 2016 15:29:28 +0200

Hi Shen,

On lun., 2016-04-18 at 14:43 +0000, shen long wrote:
> I have another ddr sdram module and I think it did not show the size.

I can only comment on actual DMI data, not things you think you've
seen ;-)

> No -t 17 records, I guess this thing is too old..
> 
> Output of # dmidecode -t 6 -u
> 
> # dmidecode 3.0
> Scanning /dev/mem for entry point.
> SMBIOS 2.3 present.
> 
> Handle 0x0008, DMI type 6, 12 bytes
>       Header and Data:
>               06 0C 08 00 01 10 00 00 05 08 08 00
>       Strings:
>               44 49 4D 4D 31 00
>               "DIMM1"
> 
> Handle 0x0009, DMI type 6, 12 bytes
>       Header and Data:
>               06 0C 09 00 01 32 00 00 05 08 08 00
>       Strings:
>               44 49 4D 4D 32 00
>               "DIMM2"
> 
> Handle 0x000A, DMI type 6, 12 bytes
>       Header and Data:
>               06 0C 0A 00 01 54 00 02 00 7F 7F 00
>       Strings:
>               44 49 4D 4D 33 00
>               "DIMM3"
> 
> Handle 0x000B, DMI type 6, 12 bytes
>       Header and Data:
>               06 0C 0B 00 01 76 00 02 00 7F 7F 00
>       Strings:
>               44 49 4D 4D 34 00
>               "DIMM4"

For all 4 slots the speed byte is 0x00, which translates to "unknown"
according to the spec. So, BIOS did not fill it out, nothing dmidecode
can do, sorry.

-- 
Jean Delvare
SUSE L3 Support




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