Intel Core™ i7-860 Processor (8M Cache, 2.80 GHz) BX8060517860 User Manual

Datasheet

85

Channel 1 DIMM Organization Descriptor Register.

12:10

RW

0

RANKOFFSET. Rank Offset for calculating RANK.
This field corresponds to the first logical rank on the DIMM. The rank offset is 

always programmed to 0 for the DIMM 0 DOD registers. (DIMM 0 rank offset is 

always 0.) DIMM 1 DOD rank offset is either 4 for two DIMMs per channel or 2 if 

there are three DIMMs per channel. DIMM2 DOD rank offset is always 4 as it is 

only used in three DIMMs per channel case.

9

RW

0

DIMMPRESENT. DIMM slot is populated.

8:7

RW

0

NUMBANK. 
Defines the number of (real, not shadow) banks on these DIMMs.
00 = Four-banked
01 = Eight-banked
10 = Sixteen-banked

6:5

RW

0

NUMRANK. Number of Ranks. Defines the number of ranks on these DIMMs.
00 = Single Ranked
01 = Double Ranked
10 = Quad Ranked

4:2

RW

0

NUMROW. Number of Rows. 
Defines the number of rows within these DIMMs.
000 = 2^12 Rows
001 = 2^13 Rows
010 = 2^14 Rows
011 = 2^15 Rows
100 = 2^16 Rows

1:0

RW

0

NUMCOL. Number of Columns. 
Defines the number of columns within on these DIMMs.
00 = 2^10 columns
01 = 2^11 columns
10 = 2^12 columns
11 = RSVD.