Yeah, it's a wonderful thing AMD calls "unganged" mode. I have 8 GB of ram in my server and the motherboard has enabled "unganged" mode to be more efficient. CentOS only recognizes 5.8 GB of ram and I cannot turn off unganged mode.

I love it...

</sarcasm>

On Sunday, June 02, 2013 17:46:19 keith smith wrote:

Hi,

After that great thread on 32bit vs 64bit, I was wondering if it would be beneficial at this point to drill down to the CPU level : AMD vs Intel.

We had a great thread a while ago the AMD CPU, however I do not think that thread covered memory management.

I almost went for an AMD CPU this go around (I have a couple from prior purchases), however after hearing that AMD does some weird memory management at the core level, assigning memory by the bank to each core, I thought I would go with an Intel CPU.

If I understand this correctly, It sounds like under some or most circumstances the server will lose a portion of the total memory because under AMD RAM is assigned at the core level and bank level. I assume Intel uses memory as a pool. Need memory just grab some until it is gone.

Any thoughts on this?

Thanks!

------------------------
Keith Smith

Regards,

Nathan England

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

NME Computer Services http://www.nmecs.com

Nathan England (nathan@nmecs.com)

Systems Administration / Web Application Development

Information Security Consulting

(480) 559.9681