Dell PowerEdge T710
I am having a heck of a time trying to understand this memory configuration Dell is saying I have to do on the server.
This server has 2 processors and 18 memory slots (9 per processor) they are configured as such:
A1 | A4 | A7 | A2 | A5 | A8 | A3 | A6 | A9
B1 | B4 | B7 | B2 | B5 | B8 | B3 | B6 | B9
In there right now is 12 GB of memory, 6x2GB sticks of RDIMM Dual Rank PC3 10600 (1333).
We wanted to upgrade to 48GB of memory, 6x8GB sticks of RDIMM, but did not read up or see the single, dual, quad rank system.
Our purchasing department bought 6x8GB sticks of RDIMM Quad rank sticks.
I am being told by a Dell technician "In a nutshell, you cannot put in more than 2 sticks of quad rank memory with any given processor per server. (I.E., if you have 2 processors, you can use a total of 4 quad rank memory sticks.)"
he gave me to the Technical Guide for the T710 has a chart that says (and other sources
say the same thing) -
"DIMM Configurations: Quad Rank RDIMM - 2 per channel per processor (12 Total)"
"Simply put, no more than 12 quad-rank DIMMs can be installed in these servers"
So what exactly are they considering a "Channel" and why does the table and websites I have read say 2 per channel (12 Total) and the Dell guy says only 2 per processor.
So far I have guestimated that:
A1 | A2 | A3 | B1 | B2 | B3 is one channel (Making it 3 channels altogether)
A1 | A2 | A3 and B1 | B2 | B3 are two separate channels (Making it 6 Channels altogether)
That is just the beginning of my questions so far and wanting to see if anyone can put it into a form that is understandable and not contradicting.
Then the configuration comes into play and that gets complicated as well. Please let me know if my question even made sense.