Reference Guide
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 10. Memory specications for Latitude 7290 and 7390
Memory Latitude 7290 and 7390 series
SO-DIMM Slot One
Minimum memory conguration 4 GB
Maximum memory conguration 16 GB
DIMM conguration
4G 2400MHz DDR4 (1x4GB) Yes
8G 2400MHz DDR4 (1x8GB) Yes
16G 2400MHz DDR4 (1x16GB) Yes
Table 11. Memory specications for Latitude 7490
Memory Latitude 7490 series
SO-DIMM Slot Two
Minimum memory conguration 4 GB
Maximum memory conguration 32 (16 x2 ) GB
DIMM conguration
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
Primary storage options
Mobility Solid State Drives oer highly reliable, durable & lightweight storage. SSDs provide improved performance & operate quieter &
cooler than standard hard drives.
Self-Encrypting drives provide hardware encrypted data protection which can be activated within a few seconds centrally & can be much
safer and faster than software based encryption. Note: Encrypted drives require the system be congured in AHCI mode.
Table 12. Storage options
Primary storage
SSD-M.2-2280-128GB-SATA
SSD-M.2-2280-256GB-SATA
Marketing System Congurations 23