I found this in an on-line discussion: Ganged = dual channel mode for ram. All cores get access to 100% of the ram. unganged = single channel. Each core gets access to a stick of ram. Is this correct? ------------------------ Keith Smith --- On Mon, 6/3/13, Nathan England wrote: From: Nathan England Subject: Re: AMD vs Intel memory managemement To: "Main PLUG discussion list" Date: Monday, June 3, 2013, 1:35 AM #yiv807825942 p, #yiv807825942 li {white-space:pre-wrap;}   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...   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   -----Inline Attachment Follows----- --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org To subscribe, unsubscribe, or to change your mail settings: http://lists.phxlinux.org/mailman/listinfo/plug-discuss