DC Persistent Memory Module — Memory Mode

In this mode, DCPMMs act as volatile system memory, while DRAM DIMMs act as cache. Only DCPMM capacity is displayed as system memory in this mode.

Figure 1. Processor and memory module layout

Table 1. Processor and memory module layout

1 DIMM 25 – 30	6 Processor socket 2
2 Processor socket 3	7 DIMM 19 – 24
3 DIMM 1 – 6	8 Processor socket 4
4 Processor socket 1	9 DIMM 43 – 48
5 DIMM 7 – 18	10 DIMM 31 – 42

Table 2. Channel and slot information of DIMMs around processor 1 and 2

Memory controllers		Controller 0						Controller 1
Channels		Channel 2		Channel 1		Channel 0		Channel 0		Channel 1		Channel 2
Slots		0	1	0	1	0	1	1	0	1	0	1	0
DIMM numbers (processor 1)		1	2	3	4	5	6	7	8	9	10	11	12
DIMM numbers (processor 2)		13	14	15	16	17	18	19	20	21	22	23	24

Table 3. Channel and slot information of DIMMs around processor 3 and 4

Memory controllers		Controller 1						Controller 0
Channels		Channel 2		Channel 1		Channel 0		Channel 0		Channel 1		Channel 2
Slots		0	1	0	1	0	1	1	0	1	0	1	0
DIMM numbers (processor 3)		25	26	27	28	29	30	31	32	33	34	35	36
DIMM numbers (processor 4)		37	38	39	40	41	42	43	44	45	46	47	48

The memory mode DIMM population sequences for each supported processor configuration are:

• Installation order: Memory Mode with two processors

• Installation order: Memory Mode with four processors