Lenovo System x3850 X6 - Power subsystem

Table 7. Maximum memory speeds - 2400 MHz TruDDR4 memory
Specification RDIMMs LRDIMMs 3DS RDIMMs
Rank Single rank Dual rank Quad rank Octo rank
Part numbers 46W0821 (8 GB) 46W0829 (16 GB)
46W0833 (32 GB)
46W0841 (64 GB) 00YG941 (128 GB)
Rated speed 2400 MHz 2400 MHz 2400 MHz 2400 MHz
Rated voltage 1.2 V 1.2 V 1.2 V 1.2 V
Operating voltage 1.2 V 1.2 V 1.2 V 1.2 V
Maximum quantity* 96 96 96 96
Largest DIMM 8 GB 32 GB 64 GB 128 GB
Max memory capacity 0.75 TB 3 TB 6 TB 12 TB
Maximum operating speed - Performance mode (2:1 mode - SMI2 link operates at twice the speed shown)
1 DIMM per channel 1600 MHz 1600 MHz 1600 MHz 1600 MHz
2 DIMMs per channel 1600 MHz 1600 MHz 1600 MHz 1600 MHz
3 DIMMs per channel 1600 MHz 1600 MHz† 1600 MHz 1600 MHz
Maximum operating speed - RAS mode (1:1 mode - SMI2 link operates at the speed shown)
1 DIMM per channel 1866 MHz 1866 MHz 1866 MHz 1866 MHz
2 DIMMs per channel 1866 MHz 1866 MHz 1866 MHz 1866 MHz
3 DIMMs per channel 1600 MHz 1600 MHz† 1600 MHz 1600 MHz
* Maximum quantity supported is shown for all processors that are installed
† This speed is above the Intel standard and is achieved only when Lenovo TruDDR4 memory is used
Table 8. Maximum memory speeds - 2133 MHz TruDDR4 memory
Specification TruDDR4 RDIMMs TruDDR4 LRDIMMs
Rank Single rank Dual rank Quad rank
Part numbers 46W0788 (8 GB) 46W0796 (16 GB)
95Y4808 (32 GB)
95Y4812 (64 GB)
Rated speed 2133 MHz 2133 MHz 2133 MHz
Rated voltage 1.2 V 1.2 V 1.2 V
Operating voltage 1.2 V 1.2 V 1.2 V
Maximum quantity* 96 96 96
Largest DIMM 8 GB 32 GB 64 GB
Max memory capacity 0.75 TB 3.0 TB 6 TB
Maximum operating speed - Performance mode (2:1 mode - SMI2 link operates at twice the speed shown)
1 DIMM per channel 1600 MHz 1600 MHz 1600 MHz
2 DIMMs per channel 1600 MHz 1600 MHz 1600 MHz
3 DIMMs per channel 1600 MHz 1600 MHz† 1600 MHz
Maximum operating speed - RAS mode (1:1 mode - SMI2 link operates at the speed shown)
1 DIMM per channel 1866 MHz 1866 MHz 1866 MHz
2 DIMMs per channel 1866 MHz 1866 MHz 1866 MHz
3 DIMMs per channel 1600 MHz 1600 MHz† 1600 MHz
* Maximum quantity supported is shown for all processors that are installed
† This speed is achieved only when Lenovo TruDDR4 memory is used
Lenovo System x3850 X6 (6241) 19