DELL M910 User Manual

Dell 

Dell PowerEdge M910 Technical Guide 

 

 

21 

 

The PowerEdge M910 uses DDR3 memory providing a high-performance, high-speed memory interface 
capable of low latency response and high throughput. The PowerEdge M910 supports Registered ECC 
DDR3 DIMMs (RDIMM) only. Each DDR3 DIMM is driven by the Intel

®

 7500 Scalable Memory Buffer

 

(

Intel

®

 7500 

SMB)

. A memory buffer has two DDR3 channels off it. Each of these channels can 

support up to 2 DIMMs running at 1067MHz (or slower) speeds. Intel

®

 7500 SMB will support single-, 

dual-, and quad-rank DIMMs. Up to four 2 GB, 4 GB, 8 GB, and 16 GB RDIMMs are supported per 
channel, for a total of up to 512 GB. Single-rank, dual rank, and quad-rank RDIMMs are supported. 
Across CPUs, DIMM populations can be different on the memory for each CPU as long as the 
population rules for each CPU socket are followed. Additionally, all CPU sockets operate in the same 
RAS mode and are set up with the same memory timing parameters. 
4-socket platform capability (64 DIMMs): 



  Up to 16 DDR3 DIMMs per socket through use of up to four 

Scalable Memory Buffers 



  Support for up to 16GB DDR3 DIMMs 



  1TB with 16GB DIMMS 

Memory types supported: 



  1066MHz DDR3 (800 & 1333MHz availability 

depends on OEM validation) 



  Registered (RDIMM) 



  Single-rank (SR), dual-rank (DR), quad-rank (QR) 

Actual system memory speed depends on specific processor capabilities: 



  6.4GT/s SMI link speed capable of running memory speeds up to 1066Mhz 



  5.86GT/s SMI link speed capable of running memory speeds up to 978Mhz 



  4.8GT/s SMI link speed capable of running memory speeds up to 800Mhz 

 

Figure 4.