Specifications

18 PowerEdge M420 Technical Guide
More memory options are available than ever before with the Dell PowerEdge M420—greater
capacities, higher frequencies, and more flexibility. The M420 supports up to 192 GB of memory
using up to 6 GB DIMMs in a dual-processor configuration, and speeds up to 1600 MT/s, providing
high performance in a variety of applications. High memory density means there is no compromise
when it comes to virtualization.
Increase your uptime and reduce data loss, due to Dell’s focus on reliability, availability, and
serviceability (RAS) features. RAS aids in the rapid and accurate diagnosis of faults that require service,
increasing your memory reliability. System uptime is reinforced with RAS features like memory
mirroring, sparing, and many others.
The M420 supports registered DIMM (RDIMM) technology, which uses a buffer to reduce memory
loading and allow for greater density, allowing for the maximum platform memory capacity.
Table 6 lists the memory technologies supported by the M420.
Feature
RDIMM
Yes
No
1333 or 1600MT/s
1, 2, or 4
2, 4, 8, 16, or 32GB
1
x4 or x8
Yes
Yes
Yes
Yes
Table 7 lists the DIMMs that are supported on the M420. For the latest information on supported
memory, visit Dell.com.