Dell™ PowerEdge™ M610 Technical Guidebook
NHM-EP Platform Memory Overview
•Platform capability (18 DIMMs):
–Up to 3 channels per CPU
–Up to 3 DIMMS per channel
•Memory Types Supported:
–DDR 1333, 1066, and 800
–Registered (RDIMM) and unbuffered (UDIMM)
–
Up to 3
channels per CPU
1 |
|
2 |
3 
1 2 3
•System memory Speed (i.e. the speed at which the memory is actually running) is set by BIOS depending on:
–CPU capability
–DIMM type(s) used (memory speed, U/RDIMM, SR/DR/QR)
–DIMM populated per channel
•All channels in a system will run at the fastest common frequency
Up to 3
DIMMs per
Channel
Memory Population Scenarios
CPUs
•Maximum B/W:
–DDR3 1333 across 3 channels
–1 DPC (6 DIMMs)
–Max capacity: 48 GB+
•Balanced Performance:
–DDR3 1066 across 3 channels
–Up to 2 DIMMs per Channel (DPC) (12 DIMMs)
–Max capacity: 96 GB+
•Maximum capacity:
–DDR3 800 across 3 channels
–Up to 3 DPC (18 DIMMs total)
–Max capacity: 144 GB+
10.6 GB/s |
|
10.6 |
|
CPU | CPU |
10.6 |
|
8.5 GB/s |
|
8.5 |
|
CPU | CPU |
8.5 |
|
6.4 GB/s |
|
6.4 |
|
CPU | CPU |
6.4 |
|
E5550
and above
E5520
and above
All
SKUs
• RAS capabilities: | Mirroring |
Lockstep
Channel 
0 & 1
mirror
each other
Channel 2 unused
CPU |
Channel 
0 & 1
operate in lockstep
Channel 2 unused
CPU |
17
