Intel 815 - Manual (Page 73)

System Memory Design Guidelines
R
Intel
®
815 Chipset Platform Design Guide 73
6.3 System Memory 3-DIMM Design Guidelines
6.3.1 System Memory 3-DIMM Connectivity
Figure 38. System Memory Connectivity (3 DIMM)
SCSA[3:2]#
SCSA[1:0]#
SCKE[1:0]
SCKE[3:2]
SRAS#
SCAS#
SWE#
SBS[1:0]
SMAA[12:8,3:0]
SMAA[7:4]
SMAB[7:4]#
SDQM[7:0]
SMD[63:0]
DIMM_CLK[3:0]
DIMM_CLK[7:4]
SMB_CLK
SMB_DATA
sys_mem_conn_3DIMM
SCSB[3:2]#
SCSB[1:0]#
DIMM 0 & 1 & 2
ICH
CK815
82815
Double-Sided, Unbuffered Pinout without ECC
SCSA[5:4]#
SCKE[5:4]
SCSB[5:4]#
SMAC[7:4]#
DIMM_CLK[11:8]
Notes:
Min. (16 Mbit) 8 MB
Max. (64 Mbit) 256 MB
Max. (128 Mbit) 512 MB