Dell Latitude 7290 7390 7490 Technical Guidebook

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Memory

Your computer supports a maximum of 16 or 32 GB of memory; however, 32-bit operating systems, can only use a maximum of 4GB of address space. Moreover, certain components within the computer require address space in the 4GB range. Any address space reserved for these components cannot be used by computer memory; therefore, the amount of memory available to a 32-bit operating system is less than 4GB.

  • Greater than 4GB memory requires a 64-bit operating system
  • Only memory type supported: DDR4 SDRAM
  • Not backward compatible with DDR3 memory modules
Table 1. Memory specifications for Latitude 7290 and 7390 The following table lists the memory configuration:
MemoryLatitude 7290 and 7390 series
SO-DIMM SlotOne
Minimum memory configuration4 GB
Maximum memory configuration16 GB
DIMM configuration
4G 2400MHz DDR4 (1x4GB) Yes
8G 2400MHz DDR4 (1x8GB) Yes
16G 2400MHz DDR4 (1x16GB) Yes
Table 2. Memory specifications for Latitude 7490 The following table lists the memory configuration:
MemoryLatitude 7490 series
SO-DIMM SlotTwo
Minimum memory configuration4 GB
Maximum memory configuration32 (16 x2 ) GB
DIMM configuration
4G 2400MHz DDR4 (1x4G) Yes
8G 2400MHz DDR4 (2 X 4G)Yes
8G 2400MHz DDR4 (1 X 8G) Yes
16G 2400MHz DDR4 (2x8G)Yes
32G 2400MHz DDR4 (2x16G)Yes

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