> The power draw related to cooling for this rack versus a rack of conventional servers is about 1-5/th to 1/10th as much.
Do you mean your Mac Pros dissipate 1/5 to 1/10th as much heat as other x86 server hardware, or is there there some other factor in play that makes your AC 5-10x more power efficient?
Sorry, just some off-the-cuff math. We use Supermicro FatTwin systems for Linux stuff, and they run a lot of fans at much higher RPMs to maintain proper airflow relative to the Mac Pro design (which runs one fan at pretty low RPMs most of the time).
As a result, I'm calculating that the Mac Pros draw a lot less power for cooling purposes than the Linux systems due to their chassis design. However, serviceability and other factors are definitely superior on the Supermicro FatTwins.
Do you mean your Mac Pros dissipate 1/5 to 1/10th as much heat as other x86 server hardware, or is there there some other factor in play that makes your AC 5-10x more power efficient?