Specifications

The large memory footprint of the Dell PowerEdge R420 offers greater capacities, higher
frequencies, and more flexibility. The R420 supports up to 192 GB of memory (12 DIMM slots) and
speeds of up to 1600 MT/s, providing high performance in a variety of applications. The new
reliability, availability, serviceability (RAS) features like memory mirroring and sparing help you
increase your uptime and reduce data loss. RAS aids in the rapid and accurate diagnosis of faults that
require service, increasing your memory reliability.
The R420 supports the memory technologies shown in Table 7.
Feature
UDIMM
RDIMM
Register
No
Yes
Buffer
No
No
Frequencies
800, 1066, or 1333MT/s
800, 1066, 1333, or 1600 MT/s
Ranks supported
1 or 2
1, 2, or 4
Capacity per DIMM
2 or 4GB
2, 4, 8, or 16GB
Maximum DIMMS per channel
2
2
DRAM technology
x8
x4 or x8
Temperature sensor
Yes
Yes
ECC
Yes
Yes
SDDC
Yes (with advanced ECC mode)
Yes
Address parity
Yes
Yes