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Memory sparing population

The tables below list the suggested FBDIMM module population for memory sparing configuration.

Population with two memory boards

DIMM

Memory board

Memory board

Memory board

Memory board

Total memory

slot*

A

B

C

D

Physical

Detected

 

 

 

 

 

memory

by OS

1 to 2

2 x 1 GB

2 x 1 GB

 

 

4 GB

3 GB

 

 

 

 

 

 

 

1 to 4

4 x 1 GB

4 x 1 GB

 

 

8 GB

7 GB

 

 

 

 

 

 

 

1 to 6

6 x 1 GB

6 x 1 GB

 

 

12 GB

11 GB

 

 

 

 

 

 

 

1 to 8

8 x 1 GB

8 x 1 GB

 

 

16 GB

15 GB

 

 

 

 

 

 

 

1 to 2

2 x 2 GB

2 x 2 GB

 

 

8 GB

6 GB

 

 

 

 

 

 

 

1 to 4

4 x 2 GB

4 x 2 GB

 

 

16 GB

14 GB

 

 

 

 

 

 

 

1 to 6

6 x 2 GB

6 x 2 GB

 

 

24 GB

22 GB

 

 

 

 

 

 

 

1 to 8

8 x 2 GB

8 x 2 GB

 

 

32 GB

30 GB

 

 

 

 

 

 

 

1 to 2

2 x 4 GB

2 x 4 GB

 

 

16 GB

12 GB

 

 

 

 

 

 

 

1 to 4

4 x 4 GB

4 x 4 GB

 

 

32 GB

28 GB

 

 

 

 

 

 

 

1 to 6

6 x 4 GB

6 x 4 GB

 

 

48 GB

44 GB

 

 

 

 

 

 

 

1 to 8

8 x 4 GB

8 x 4 GB

 

 

64 GB

60 GB

 

 

 

 

 

 

 

* DIMM slot 1 in memory boards A and B is configured to sparing mode.

Population with four memory boards

DIMM

Memory board

Memory board

Memory board

Memory board

Total memory

slot*

A

B

C

D

Physical

Detected

 

 

 

 

 

memory

by OS

1 to 2

2 x 1 GB

2 x 1 GB

2 x 1 GB

2 x 1 GB

8 GB

6 GB

 

 

 

 

 

 

 

1 to 4

4 x 1 GB

4 x 1 GB

4 x 1 GB

4 x 1 GB

16 GB

14 GB

 

 

 

 

 

 

 

1 to 6

6 x 1 GB

6 x 1 GB

6 x 1 GB

6 x 1 GB

24 GB

22 GB

 

 

 

 

 

 

 

1 to 8

8 x 1 GB

8 x 1 GB

8 x 1 GB

8 x 1 GB

32 GB

30 GB

 

 

 

 

 

 

 

1 to 2

2 x 2 GB

2 x 2 GB

2 x 2 GB

2 x 2 GB

16 GB

12 GB

 

 

 

 

 

 

 

1 to 4

4 x 2 GB

4 x 2 GB

4 x 2 GB

4 x 2 GB

32 GB

28 GB

 

 

 

 

 

 

 

1 to 6

6 x 2 GB

6 x 2 GB

6 x 2 GB

6 x 2 GB

48 GB

44 GB

 

 

 

 

 

 

 

1 to 8

8 x 2 GB

8 x 2 GB

8 x 2 GB

8 x 2 GB

64 GB

60 GB

 

 

 

 

 

 

 

1 to 2

2 x 4 GB

2 x 4 GB

2 x 4 GB

2 x 4 GB

32 GB

24 GB

 

 

 

 

 

 

 

1 to 4

4 x 4 GB

4 x 4 GB

4 x 4 GB

4 x 4 GB

64 GB

56 GB

 

 

 

 

 

 

 

1 to 6

6 x 4 GB

6 x 4 GB

6 x 4 GB

6 x 4 GB

96 GB

88 GB

 

 

 

 

 

 

 

1 to 8

8 x 4 GB

8 x 4 GB

8 x 4 GB

8 x 4 GB

128 GB

120 GB

 

 

 

 

 

 

 

* DIMM slot 1 in memory boards A, B, C, and D is configured to sparing mode.

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Image 187
Acer R920 Series manual Memory sparing population, Dimm