Memory; Supported Memory; Table 7. Memory Technologies Supported - Dell PowerEdge R420 Technical Manual

5 Memory

The large memory footprint of the Dell PowerEdge R420 offers greater capacities, higher
frequencies, and more flexibility. The R420 supports up to 384GB of memory (12 DIMM slots) and
speeds of up to 1600MT/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.

Supported memory

The R420 supports the memory technologies shown
Feature
Register
Buffer
Frequencies*
Ranks supported
Capacity per DIMM
Maximum DIMMs per channel
DRAM technology
Temperature sensor
Error Correction Code (ECC)
Single Device Disable Code
(SDDC)
Address parity
*Although the R420 supports DIMM speeds of 800MT/s and 1066MT/s, you can only purchase this system
with DIMM speeds of 1333MT/s and 1600MT/s on Dell.com.
17 PowerEdge R420 Technical Guide
Table 7. Memory technologies supported
UDIMM
No
No
800, 1066, 1333 or 1600MT/s
1 or 2
2 or 4GB
2
x8
Yes
Yes
Yes (with advanced ECC mode)
Yes
Table 7.
in
RDIMM
Yes
No
800, 1066, 1333, or 1600MT/s
1, 2, or 4
2, 4, 8, 16, or 32GB
2
x4 or x8
Yes
Yes
Yes
Yes