Cisco UCS C480 M5 Manual - Page 16
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DIMM Population Order
DIMM Population Order
Populate the DIMMs for a CPU according to
Table 7 C480 M5 DIMM Population Order
Populate CPU1 or CPU 3 Slots
Blue Slots
1
(A1)
2
(A1, D1)
3
(A1, B1, C1)
4
(A1,B1); (D1,E1)
6
(A1,B1); (C1,D1);
(E1, F1)
8
(A1,B1); (D1,E1)
12
(A1,B1); (C1,D1);
(E1, F1)
The maximum combined memory allowed in the 12 DIMM slots controlled by any one CPU is
■
768 GB. To populate the 12 DIMM slots with more than 768 GB of combined memory, you
must use a high-memory CPU that has a PID that ends with an "M", for example,
UCS-CPU-6134M.
All DIMMs must be DDR4 DIMMs that support ECC. Non-buffered UDIMMs and non-ECC DIMMs
■
are not supported.
Memory mirroring reduces the amount of memory available by 50 percent because only one
■
of the two populated channels provides data. When memory mirroring is enabled, you must
install DIMMs in even numbers of channels.
NVIDIA M-Series GPUs can support only less than 1 TB memory in the server.
■
NVIDIA P-Series, V-series, and T-series GPUs can support 1 TB or more memory in the server.
■
AMD FirePro S7150 X2 GPUs can support only less than 1 TB memory in the server.
■
16
Table
Black slots
-
-
-
-
-
(A2,B2); (D2,E2)
(A2,B2); (C2,D2);
(E2, F2)
NOTE: 5, 7, 9, 10, 11 DIMMs per CPU is not recommended.
7.
Populate CPU2 or CPU 4 Slots
Blue slots
(G1)
(G1, K1)
(G1, H1, J1)
(G1,H1); (K1,L1)
(G1,H1); (J1,K1);
(L1, M1)
(G1,H1); (K1,L1)
(G1, H1); (J1, K1);
(L1, M1)
Black slots
-
-
-
-
-
(G2,H2); (K2,L2)
(G2,H2); (J2,K2);
(L2,M2)
Cisco UCS C480 M5 Memory Guide