Dell PRECISION 3620 - MEMORY CONFIGURATIONS; Memory Specifications Overview; ECC UDIMM Memory Options; Non-ECC Memory Options

DELL™ PRECISION™ TOWER 3620 , TOWER 3420 TECHNICAL GUIDEBOOK
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MEMORY
NOTE: The Dell Precision TOWER 3620/TOWER 3420 has a dual channel memory bus architecture. Dell recommends that two memory channels be
populated with DIMMS for maximum memory performance.. Please note, UDIMM ECC and NECC memory cannot be mixed.
NOTE: Not all memory opons are available for Factory Installaon.. Processor availability subject to change and may vary by region/country.
NOTE: Maximum memory speed is ed to processor. Intel 7th Gen Processor only supports 2400Mhz memory. 2400Mhz memory will clock down
to 2133Mhz when paired with Intel 6th Gen Core I or E3-1200 v5 Processors
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The total amount of available memory will be less than 4GB on systems running 32-bit operating systems. The amount less depends on the actual
system configuration. To fully utilize 4GB or more of memory requires a 64-bit operating system.
Tower 3620 Tower 3420
Memory specicaons
Type: DDR4 Non-ECC UDIMM and ECC UDIMM
Max Frequency 2133 MHz / 2400MHz
DIMM Slots 4
DIMM Capacies Up to 16GB
Minimum Memory 4GB
Maximum System Memory 64GB
Memory opons
ECC UDIMM Memory (only available with Xeon processors)
64GB (4 x 16 GB) DDR4, 2133 MHz X X
32GB (2x 16 GB) DDR4, 2133 MHz X X
32GB (4 x 8 GB) DDR4, 2133 MHz X X
16GB (2 x 8 GB) DDR4, 2133 MHz X X
16GB (4 x 4 GB) DDR4, 2133 MHz X X
8GB (1 x 8 GB) DDR4, 2133 MHz X X
8GB (2 x 4 GB) DDR4, 2133 MHz X X
4GB
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(1 x 4GB) DDR4 2133 MHz, X X
Non- ECC Memory (NECC)
64GB (4 x 16 GB) DDR4, 2133 MHz and 2400MHz X X
32GB (2x 16 GB) DDR4, 2133 MHz and 2400MHz X X
32GB (4 x 8 GB) DDR4, 2133 MHz and 2400MHz X X
16GB (2 x 8 GB) DDR4, 2133 MHz and 2400MHz X X
16GB (4 x 4 GB) DDR4, 2133 MHz and 2400MHz X X
8GB (1 x 8 GB) DDR4, 2133 MHz and 2400MHz X X
8GB (2 x 4 GB) DDR4, 2133 MHz and 2400MHz X X
4GB
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(1 x 4 GB) DDR4 2133 MHz, and 2400MHz X X