Cisco UCS C480 M5 Manual
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Cisco UCS C480 M5 Manual

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Cisco UCS C480 M5
Memory Guide
C
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ISCO
YSTEMS
170 W
T
D
EST
ASMAN
R
S
J
, CA, 95134
AN
OSE
.
.
WWW
CISCO
COM
P
H
UBLICATION
ISTORY
R
A.1
A
19, 2019
EV
UGUST
Guide

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Summary of Contents for Cisco UCS C480 M5

  • Page 1 Guide Cisco UCS C480 M5 Memory Guide  ISCO YSTEMS UBLICATION ISTORY  170 W ASMAN  , CA, 95134 19, 2019 UGUST CISCO...

  • Page 2: Table Of Contents

    Installing a DIMM or DIMM Blank ....... 33 Cisco UCS C480 M5 Memory Guide...

  • Page 3: Server Cpu Module Bay Layout

    CPU1: A, B, C, D, E, F ■ CPU2: G, H, J, K, L, M ■ Upper Bay: CPU3: A, B, C, D, E, F ■ CPU4: G, H, J, K, L, M ■ Cisco UCS C480 M5 Memory Guide...

  • Page 4: Memory Organization

    Chan C Chan J CPU1/ CPU 2/ CPU3 CPU4 Chan K Chan D Chan L Chan E Chan F Chan M 24 DIMMS 6 memory channels per CPU, up to 2 DIMMs per channel Cisco UCS C480 M5 Memory Guide...

  • Page 5: Memory Devices (Dimms And Dcpmms)

    DC Persistent Memory, 256GB, 2666MHz UCS-MP-512GS-A0 Intel ® Optane DC Persistent Memory, 512GB, 2666MHz Intel® OptaneTM DC Persistent Memory Product Operational Modes UCS-DCPMM-AD App Direct Mode UCS-DCPMM-MM Memory Mode Memory Mirroring Option N01-MMIRROR Memory mirroring option Cisco UCS C480 M5 Memory Guide...

  • Page 6: Memory Configurations And Modes

    DIMMs. DIMMs for all four CPUs must always be configured identically. ■ Cisco memory from previous generation servers (DDR3 and DDR4) is not compatible or ■ supported with the UCS C480 server NOTE: System performance is optimized when the DIMM type and quantity are equal for both CPUs, and when all channels are filled equally across the CPUs in the server.

  • Page 7: Dcpmm Guidelines

    DCPMM DIMM DIMM DIMM DCPMM DIMM 6 to 4 DIMM DCPMM DIMM DCPMM DIMM DIMM DCPMM DIMM DCPMM DIMM 6 to 6 DCPMM DIMM DCPMM DIMM DCPMM DIMM DCPMM DIMM DCPMM DIMM DCPMM DIMM Cisco UCS C480 M5 Memory Guide...
  • Page 8 2 (closest to the CPU) and the DIMM is installed in channel slot 1. To maximize performance, balance all memory channels ■ In configurations with DCPMMs installed, memory mirroring is supported, with two restrictions: ■ Cisco UCS C480 M5 Memory Guide...
  • Page 9 Only App Direct mode is supported. Memory mirroring cannot be enabled when DCPMMs are ■ in Memory Mode or Mixed Mode. For detailed Intel DCPMM configurations, refer to the following link: https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/c/hw/C480M5/install/C480M5/C480M5_ chapter_011.html?bookSearch=true#concept_b1k_mbt_tgb Cisco UCS C480 M5 Memory Guide...

  • Page 10: Dimm Memory Mirroring

    (G1, G2, H1, H2, J1, J2); (K1, K2, L1, L2, M1, F1, F2) NOTE: System performance is optimized when the DIMM type and quantity are equal for both CPUs, and when all channels are filled equally across the CPUs in the server. Cisco UCS C480 M5 Memory Guide...

  • Page 11: Cpu Configuration With Memory Mirroring

    CPU 4 DIMM Placement in Channels (for identically ranked DIMMs) (G1, H1); (K1, L1) (G1, H1, J1); (K1, L1, M1) (G1, G2, H1, H2); (K1, K2, L1, L2) (G1, G2, H1, H2, J1, J2); (K1, K2, L1, L2, M1, M2) Cisco UCS C480 M5 Memory Guide...

  • Page 12: System Speeds

    DIMM = 2933 1DPC 2400 2400 2400 2400 2400 CPU = 2400 2DPC 2400 2400 2400 2400 2400 DIMM = 2933 1DPC 2133 2133 2133 2133 2133 CPU = 2133 2DPC 2133 2133 2133 2133 2133 Cisco UCS C480 M5 Memory Guide...

  • Page 13: Physical Layout

    Physical Layout of C480 M5 CPU Channels and Slots Top View CPU 3 CPU 4 Front of Upper CPU Module (Bay 2) Top View CPU 2 CPU 1 Front of Lower CPU Module (Bay 1) Cisco UCS C480 M5 Memory Guide...

  • Page 14: Dimm Population Rules

    For populations of 1 DIMM per channel (1DPC) and 2DPC, with Intel Xeon scalable processors, ■ all supported DIMMs on Cisco UCS M5 servers run at their labeled speed provided the processor supports that speed. At the same memory speed, 2 DPC may perform slightly better than 1 DPC for RDIMMs ■...
  • Page 15 LRDIMMs Notes: 1. Although different DIMM capacities can exist in the same slot, this will result in less than optimal performance. For optimal performance, all DIMMs in the same slot should be identical. Cisco UCS C480 M5 Memory Guide...

  • Page 16: Dimm Population Order

    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. ■ Cisco UCS C480 M5 Memory Guide...

  • Page 17: Recommended Dimm Configuration

    6x64 GB 6x64 GB 6x64 GB 6x64 GB 1536 GB 6x128 GB 6x128 GB 2304 GB 6x128 GB 6x64 GB 6x128 GB 6x64 GB 3072 GB 6x128 GB 6x128 GB 6x128 GB 6x128 GB Cisco UCS C480 M5 Memory Guide...
  • Page 18 6x64 GB 6x64 GB TSV-R 1536 GB 6x128 GB 6x128 GB TSV-R 2304 GB 6x128 GB 6x64 GB 6x128 GB 6x64 GB TSV-R 3072 GB 6x128 GB 6x128 GB 6x128 GB 6x128 GB TSV-R Cisco UCS C480 M5 Memory Guide...

  • Page 19: Memory Capacities For Cpu Classes

    1536 Notes: 1. 256 GB DIMMs are available in CQ4'CY2019 NOTE: The cells marked with N/A indicate a memory capacity that would be more than the allowable 2048 GB and therefore cannot be configured. Cisco UCS C480 M5 Memory Guide...
  • Page 20 1. Total DIM M capacity for 2nd Gen non-”M” and non-”L” CPUs cannot exceed 1024 GB 2. 256 GB DIMMs are available in CQ4'CY2019 NOTE: The cells marked with N/A indicate a memory capacity that would be more than the allowable 1024 GB and therefore cannot be configured. Cisco UCS C480 M5 Memory Guide...

  • Page 21: All Dimm Configurations For Intel® Xeon® Scalable Processors

    Table 14 Regular non-“M” CPU All DIMM Memory (4, 6, 8, or 12 DIMMs per CPU) Capacity Per DIMM (GB) Number of DIMMs  per CPU Total Capacity per CPU (GB) Notes: 1. Total DIM M capacity for regular non-”M” CPUs cannot exceed 768 GB Cisco UCS C480 M5 Memory Guide...

  • Page 22: Mixed Dimm/Dcpmm Configurations

    Capacity Per DCPMM (GB) 6 DIMMs 1536 2 DCPMMs Total Capacity per CPU 1280 2048 Capacity Per DCPMM (GB) 6 DIMMs 2 DCPMMs 1024 1024 1024 1024 Total Capacity per CPU 1120 1216 1408 1792 Cisco UCS C480 M5 Memory Guide...
  • Page 23 1. If DCPMMs are selected, 6 DIMMs per CPU must also be selected 2. 256 GB DIMMs are available in CQ4'CY2019 NOTE: The cells marked with N/A indicate a memory capacity that would be more than the allowable 2048 GB and therefore cannot be configured. Cisco UCS C480 M5 Memory Guide...
  • Page 24 6 DIMMs 1536 4 DCPMMs 2048 2048 2048 2048 2048 Total Capacity per CPU 2144 2240 2432 2816 3584 Capacity Per DCPMM (GB) 6 DIMMs 1536 6 DCPMMs Total Capacity per CPU 1152 1536 2304 Cisco UCS C480 M5 Memory Guide...
  • Page 25 3072 3072 3072 Total Capacity per CPU 3168 3264 3456 3840 4608 Notes: 1. If DCPMMs are selected, 6 DIMMs per CPU must also be selected 2. 256 GB DIMMs are available in CQ4'CY2019 Cisco UCS C480 M5 Memory Guide...
  • Page 26 NOTE: Configurations of any 6 DIMMs and 2 512 GB DCPMMs, or any 6 DIMMs and any 4 DCPMMs or any 6 DIMMs and any 6 DCPMMs are not valid, because they always exceed the 1024 GB capacity limit. Cisco UCS C480 M5 Memory Guide...
  • Page 27 2048 Capacity Per DCPMM (GB) DIMM:DCPMM capacity 1:10.67 1:5.33 1:2.67 1:1.33 1:0.67 ratio per CPU 6 DIMMs 1536 2 DCPMMs 1024 1024 1024 1024 1024 Total Capacity per CPU 1120 1216 1408 1792 2560 Cisco UCS C480 M5 Memory Guide...
  • Page 28 2048 2048 2048 Total Capacity per CPU 2144 2240 2432 2816 3584 Capacity Per DCPMM (GB) DIMM:DCPMM capacity 1:0.5 ratio per CPU 6 DIMMs 1536 6 DCPMMs Total Capacity per CPU 1152 1536 2304 Cisco UCS C480 M5 Memory Guide...
  • Page 29 1. If DCPMMs are selected, 6 DIMMs per CPU must also be selected 2. 256 GB DIMMs are available in CQ4'CY2019 NOTE: The cells marked with N/A indicate a memory capacity that would be more than the allowable 3584 GB and therefore cannot be configured. Cisco UCS C480 M5 Memory Guide...
  • Page 30 Total Capacity per CPU 1120 1216 1408 1792 2560 Capacity Per DCPMM (GB) DIMM:DCPMM capacity ratio 1:5.33 1:2.67 1:1.33 1:0.67 1:0.33 per CPU 6 DIMMs 1536 4 DCPMMs Total Capacity per CPU 1280 2048 Cisco UCS C480 M5 Memory Guide...
  • Page 31 3072 3072 3072 Total Capacity per CPU 3168 3264 3456 3840 4608 Notes: 1. If DCPMMs are selected, 6 DIMMs per CPU must also be selected 2. 256 GB DIMMs are available in CQ4'CY2019 Cisco UCS C480 M5 Memory Guide...
  • Page 32 NOTE: Configurations of any 6 DIMMs and 2 512 GB DCPMMs, or any 6 DIMMs and any 4 DCPMMs or any 6 DIMMs and any 6 DCPMMs are not valid, because they always exceed the 1024 GB capacity limit. Cisco UCS C480 M5 Memory Guide...

  • Page 33: Installing A Dimm Or Dimm Blank

    DIMM, the slot, or both. Step 3 Press the DIMM connector latches inward slightly to seat them fully. Step 4 Populate all slots with a DIMM or DIMM blank. A slot cannot be empty. Figure 4 Installing Memory Cisco UCS C480 M5 Memory Guide...
  • Page 34 Installing a DIMM or DIMM Blank Cisco UCS C480 M5 Memory Guide...

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