For future versions of Windows 11, Dell continues to test the commercial platform with coming Windows 11 releases during
device production and for five years post-production, including both fall and spring releases from Microsoft.
For additional information about N-2 and 5-year Windows operating system supportability, see the Dell Windows as a Service
(WaaS), at Dell support site.
EOML 411
The OptiPlex 7400 All-in-One continues to test the coming Semi-Annual Channel Windows 11 version releases for five years
post-production, including both fall and spring releases from Microsoft.
Memory
The following table lists the memory specifications of your OptiPlex 7400 All-in-One.
Table 5. Memory specifications
Description Values
Memory slots
Two-SoDIMM
Memory type
DDR4
Memory speed
3200 MHz
Maximum memory configuration
64 GB
Minimum memory configuration
4 GB
Memory size per slot
4 GB, 8 GB, 16 GB, 32 GB
Memory configurations supported
● 4 GB, 1 x 4 GB, DDR4, 3200 MHz
● 8 GB, 1 x 8 GB, DDR4, 3200 MHz
● 16 GB, 1 x 16 GB, DDR4, 3200 MHz
● 16 GB, 2 x 8 GB, DDR4, 3200 MHz, dual-channel
● 32 GB, 1 x 32 GB, DDR4, 3200 MHz
● 32 GB, 2 x 16 GB, DDR4, 3200 MHz, dual-channel
● 64 GB, 2 x 32 GB, DDR4, 3200 MHz, dual-channel
Memory matrix
The following table lists the memory configurations supported for your OptiPlex 7400 All-in-One.
Table 6. Memory matrix
Configuration Slot
SO-DIMM1 SO-DIMM2
4 GB DDR4 4 GB NA
8 GB DDR4 8 GB NA
16 GB DDR4 16 GB NA
16 GB DDR4 8 GB 8 GB
32 GB DDR4 32 GB NA
32 GB DDR4 16 GB 16 GB
64 GB DDR4 32 GB 32 GB
22 Specifications of OptiPlex 7400 All-in-One