Intel SR9000MK4U manual Mmr

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 27