Figure 44. Ddr Clock Trace Length Matching Diagram - Intel 852GM Design Manual

System Memory Design Guidelines (DDR-SDRAM)

Figure 44. DDR Clock Trace Length Matching Diagram

Clock Reference Length X0 = _________
GMCH Package
Note: All lengths are measured from GMCH die-pad to
SO-DIMM0 connector pads.
Clock Reference Length X1 = __________
GMCH Package
Note: All lengths are measured from GMCH die-pad to
SO-DIMM1 connector pads.
88
SCK0
SCK#0
SCK1
GMCH SCK#1
Die
SCK3
SCK3#
SCK4
GMCH
SCK4#
Die
SO-DIMM0
SCK0 Length = X0
SCK#0 Length = X0
SCK1 Length = X0
SCK#1 Length = X0
Length = X0 +/-25mils
SO-DIMM1
SO-DIMM0
®
Intel 852GM Chipset Platform Design Guide
R
SCK3 Length = X1
SCK#3 Length = X1
SCK4 Length = X1
SCK#4 Length = X1
Length = X1 +/-25mils