Owners Manual

● NeoKylin Linux 7.0 (China only)
Memory
Table 5. Memory specifications
Description Values
Slots
Four DIMM slots
Type
DDR4 DRAM ECC or non-ECC memory
Speed
2666 MHz or 2933 MHz
NOTE: 2933 MHz for Intel Core i7, i9 or, Xeon 1270,
1270P, 1290, 1290P processors.
Maximum memory
128 GB
Minimum memory
8 GB
Memory per slot
● 4 GB, 8 GB, 16 GB and, 32 GB
Configurations supported:
● 128 GB: 4 x 32 GB, UDIMM, ECC, 2933 MHz, or 2666
MHz depending on processor
● 64 GB: 2 x 32 GB or 4 x 16 GB, UDIMM, ECC, 2933 MHz,
or 2666 MHz depending on processor
● 32 GB: 2 x 16 GB or 4 x 8 GB or 1 x 32 GB, UDIMM, ECC,
2933 MHz, or 2666 MHz depending on processor
● 16 GB: 2 x 8 GB, 1 x 16 GB, UDIMM, ECC, 2933 MHz, or
2666 MHz depending on processor
● 8 GB: 1 x 8 GB, 2 x 4 GB, UDIMM, ECC, 2933 MHz, or
2666 MHz depending on processor
● 128 GB: 4 x 32 GB, UDIMM, non-ECC, 2933 MHz, or
2666 MHz depending on processor
● 64 GB: 2 x 32 GB or 4 x 16 GB, UDIMM, non-ECC, 2933
MHz, or 2666 MHz depending on processor
● 32 GB: 4 x 8 GB, 1 x 32 GB, 2 x 16 GB, UDIMM, non-
ECC, 2933 MHz, or 2666 MHz depending on processor
● 16 GB: 4 x 4 GB, 2 x 8 GB, UDIMM, non-ECC, 2933 MHz,
or 2666 MHz depending on processor
● 8 GB: 1 x 8 GB, 2 x 4 GB, UDIMM, non-ECC, 2933 MHz,
or 2666 MHz depending on processor
NOTE:
● Intel Core i3, i5, and Xeon 1250, 1250P support up to
2666 MHz memory operating speed.
● Intel Core i7, i9, and Xeon 1270, 1270P, 1290, 1290P
support up to 2933 MHz memory operating speed.
NOTE: A multiple DIMM memory option is recommended
to prevent any performance reduction. If the computer
configuration includes integrated graphics, consider
selecting 2 or more DIMMs.
Specifications of Precision 3640 Tower 15