M5000 - Memory Board Upgrades

Question

Please confirm if the following configuration is possible:
The Server M5000 will support the combination of memories.
Example:
MEMB1  Group A ( 4 x 8 GB DIMM ) + MEMB2  Group A ( 4 x 8 GB DIMM )  + MEMB3  Group A ( 4 x 8 GB DIMM ) + MEMB4  Group A ( 4 x 8 GB DIMM )   =  128 GB
OR
MEMB1  Group A and  B( 8  x 8 GB DIMM ) + MEMB2  Group A and  B  ( 8 x 4 GB DIMM )  + MEMB3 Group A and  B ( 8 x 2 GB DIMM ) + MEMB4  Group A ( 8 x 2 GB DIMM )   =  128 GB
Is it correct?

Answer 1

Dear user 5530729,
the first example of memory configuration sounds reasonable, even I'm confused by the MEMB numbering you used.
( MEMB#0 is the first one in a M5000 and it needs to be populated first, but may be you meant with MEMB1 = MEMB#0)
Alternatively you can use the following configuration:
MEMB#0  Group A + B( 8 x 8 GB DIMM ) + MEMB#1  Group A + B ( 8 x 8 GB DIMM )  = 128 GB
( saves the need of 2 's, having two MEMB's or 4 MEMB's installed on one PSB is valid )
The second example will not work as you violate the memory configuration rules for Mx000 server. In this case the one,
saying the DIMMs populating group A must be equal or greater than the DIMMs populating group B, because the groups
are spread across all memory boards of the same XSB, and you use different DIMM sizes on the memory boards.
For more information please refer to the documentation in MOS:
"Sparc Enterprise M3000/M4000/M5000/M8000/M9000 Servers Memory Configuration Rules (Doc ID 1019113.1)"
Hope this answers your question.  If so, mark it accordingly.
Kind regards.
Steffen
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