Dell OptiPlex 790 - Front Bezel; Removing the Front Bezel

DELL™ OPTIPLEX™ 790 TECHNICAL GUIDEBOOK - V 2.0
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NOTE: Memory modules should be installed in pairs of matched memory size, speed, and technology. If the memory modules are not in-
stalled in matched pairs, the computer will continue to operate, but with a slight reduction in performance. The entire 16-GB memory range
is available to 64-bit operating systems.
1
The total amount of available memory will be less than 4GB. The amount less depends on the actual system configuration. To fully utilize 4GB or
more of memory requires a 64-bit enabled processor and 64-bit operating system.
MT DT SFF USFF
Type: DDR3 Synch DRAM Non-ECC Memory
1333MHz
DIMM Slots
4 4 4 2
DIMM Capacities
Up to 4GB Up to 4GB Up to 4GB Up to 4GB
Minimum Memory
1GB 1GB 1GB 1GB
Maximum System Memory
16GB
1
16GB
1
16GB
1
8GB
1
Memory configurations
16GB
1
DDR3, 1333MHz, (4 DIMM) X X X
8GB
1
DDR3, 1333MHz, (2 DIMM) X X X X
4GB
1
DDR3, 1333MHz, (2 DIMM) X X X X
4GB
1
DDR3, 1333MHz, (1 DIMM) X
3GB DDR3, 1333MHz, (2 DIMM) X X X X
2GB DDR3, 1333MHz, (1 DIMM) X X X X
1GB DDR3, 1333MHz, (1 DIMM) X X X X