In the path to 1-B no new memory box is needed and therefore has a lower cost for capacity addition.

Memory mirroring is applicable to 3-A, but not to 2-A nor 1-B.

1-A

1MMR/4DIMM

Single Mode

NDC

NDC

MC

MC

 

UpgradePath

MMR

Upgrade Path

Upgrade Path

W

2MMR/8DIMM

NDC

MC

MC

MMR

Upgrade Path

2-A

NDC

MC

MC

Single Mode

Upgrade Path

X

2MMR/8DIMM

 

3-A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NDC

MC

MC

MC

MC

MMR

Mirror Mode

Double Mode

NDC

Upgrade Path

Upgrade Path

Y

4MMR/16DIMM

4-A

Mirror Mode

Double Mode

 

NDC

 

NDC

 

MC

MC

MC

MC

MC

MC

MC

MC

 

 

 

 

 

 

 

UpgradePath

Z

MMR

MMR

AF001102

Intel® Server System SR9000MK4U Product Guide

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Image 49
Intel SR9000MK4U manual Mmr