[Beowulf] ECC support on motherboards?

Joel Jaeggli joelja at bogus.com
Tue May 13 00:04:40 EDT 2008


Geoff Jacobs wrote:
> Joel Jaeggli wrote:
>> if you're operating at the component level it's a question which core
>> logic chipsets are in use.
>>
>> In the amd case all socket F cpu's support ecc.
> 
> Does support for ECC on AMD 64 bit processors bypass BIOS support, for
> the most part? Let me rephrase: if I install an Opteron in AM2 form
> factor along with ECC ram on a consumer motherboard, will a Bluesmoke
> kernel still trap on a memory error even if the BIOS does not
> specifically support ECC?

I'm not sure I'd guarantee that across all consumer am2 mainboards...

http://www.ecs.com.tw/ECSWebSite/Products/ProductsDetail.aspx?detailid=789&CategoryID=1&DetailName=Specification&MenuID=46&LanID=9

is targeted at different market than:

http://www.supermicro.com/Aplus/motherboard/Opteron1000/MCP55/H8SMi-2.cfm

On the other hand I can't imagine a socket F customer wanting 32GB of 
ram and not wanting ecc.

>> In the intel case. the uniprocessor xeon chipsets like 3000 and 3200
>> support unbuffered ecc ddr2 dimms. all 5000 chipsets support ecc
>> fbdimms. The older 7xxx xeon supporting chipsets support ddr or ddr2
>> registerd dimms with ecc.
>>
>> only with the single socket intel lga775 systems is there serious
>> ambiguity at this point.
> 
> 

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