Dell PowerEdge R330 Owner's Manual

System memory

Your system supports DDR4 ECC unbuffered DIMMs (UDIMMs).

NOTE: MT/s indicates memory module speed in Mega Transfers per second.

Memory bus operating frequency can be 1600 MT/s, 1866 MT/s, 2133 MT/s, or 2400 MT/s depending on the following factors:

System profile selected (for example, Performance Optimized, Custom, or Dense Configuration Optimized)
Maximum supported memory module frequency of the processors

The system contains four memory sockets — two sets of 2–sockets each. Each 2–socket set is organized into one channel. In each 2-socket set, the first socket release lever is marked white and the second socket release lever is marked black.

This image shows the location of the memory sockets on the system board. — Figure 1. Memory socket locations on the system board

Memory channels are organized as follows:

Processor 1

channel 0: memory sockets A1 and A3

channel 1: memory sockets A2 and A4

The following table shows the memory populations and operating frequencies for the supported configurations:

Table 1. Memory populations and operating frequencies for the supported configurationsOne or two dual or single-rank ECC UDIMMs populated per channel operate at 2133, 1866, and 1600 frequencies.
Memory module type	Memory modules populated per channel	Operating frequency (in MT/s)	Maximum memory module ranks per channel
		1.2 V
ECC (UDIMM)	1	1600, 1866, 2133, 2400	Dual rank or single rank
ECC (UDIMM)	2	1600, 1866, 2133, 2400	Dual rank or single rank

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System memory

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