● Windows 11 Pro, 64-bit
● Windows 11 Pro National Education, 64-bit
● Ubuntu Linux 22.04 LTS, 64-bit
● Dell Hybrid Client on Ubuntu Linux 22.04 LTS, 64-bit
● Dell ThinOS
● Windows 10 IoT Enterprise LTSC 2021
For more information about Dell OS Recovery image, see How to Download and Use the Dell OS Recovery Image in Microsoft
Windows, at Dell support site.
Commercial platform Windows 11 N-2 and 5-year operating system supportability:
All newly introduced 2019 and later commercial platforms (Latitude, OptiPlex, and Dell Precision) will qualify and ship with the
most current factory installed Semi-Annual Channel Windows 11 version (N) and qualify (but not ship) the previous two versions
(N-1, N-2). The OptiPlex All-in-One 7420 will RTS with Windows 11 version v23H2 at time of launch, and this version will
determine the N-2 versions that are initially qualified for this platform.
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 All-in-One 7420 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 All-in-One 7420.
Table 5. Memory specifications
Description Values
Memory slots
Two SoDIMM slots
Memory type
DDR5
Memory speed
● 4800 MT/s
● 5200 MT/s
● 5600 MT/s
NOTE: Depending on the memory configuration, the
processor installed on your computer, and the country of
purchase, the speed of the installed memory may vary.
Maximum memory configuration
64 GB
Minimum memory configuration
8 GB
Memory size per slot
8 GB, 16 GB, or 32 GB
Memory configurations supported
For computers shipped with an Intel 300/300T or
14th Gen Intel Core i3-14100/i3-14100T/i5-14500T vPro/
i5-14500 vPro processor:
● 8 GB: 1 x 8 GB, DDR5, 4800 MT/s, single-channel
● 16 GB: 1 x 16 GB, DDR5, 4800 MT/s, single-channel
● 16 GB: 2 x 8 GB, DDR5, 4800 MT/s, dual-channel
● 32 GB: 1 x 32 GB, DDR5, 4800 MT/s, single-channel
● 32 GB: 2 x 16 GB, DDR5, 4800 MT/s, dual-channel
● 64 GB: 2 x 32 GB, DDR5, 4800 MT/s, dual-channel
Specifications of OptiPlex All-in-One 7420 17
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