ECS Motherboard User Manual page 37

Table A: Unbuffered DIMM Support For 754-pin Lidded Micro PGA Package
Number
4.1.5
of
DIMM 2
DIMM 1
5
DIMMs
empty
1
single rank
1 empty single rank
empty empty
1
1 double rank empty
empty
1 double rank
empty empty
1
single rank
single rank
2
single rank double rank
2
single rank
empty
2
single rank empty
2
double rank
single rank
2
double rank double rank
2
double rank
empty
2
double rank empty
2
empty
single rank
2
empty single rank
2
empty
double rank
2
empty double rank
2
single rank
single rank
3
single rank single rank
3
single rank double rank
3
single rank double rank
3
double rank single rank
3
double rank single rank
3
double rank double rank
3
double rank double rank
3
1 DIMM 1 connects to commmand/address pins MEMADDA [13:0],
MEMBANKA[1:0], MEMRASA_L, MEMCASA_L, MEMWEA_L, MEMCKEA.
2 DIMM 2 and 3 connect to command/address pins MEMaDAB [13:0],
MEMBANKB [1:0], MEMRASB_L, MEMCASB_L,MEMWEB_L,MEMCKEB.
3 2T timing is supported in CG and later silicon revisions. Refer to the AMD
Athlon 64/Sempron Processors Power and Thermal Data Sheet, order #30430, for
silicon revision determination.
4 The maximum allowable DRAM speed under these high load conditions may be
reduced with certain DIMMs due to signal integrity degradation.
5 For systems using a 2 DIMM implementation, refer only to rows in this table
where the entry for the column titled DIMM 3 reads 'empty'.
Chapter 2: Motherboard Installation
Maximum DRAM Speed
2
2
DIMM 3
1T
empty
DDR400 DDR400
empty
DDR400 DDR400
single rank
DDR400 DDR400
empty
DDR400 DDR400
empty
DDR400 DDR400
double rank
DDR400 DDR400
empty
DDR400 DDR400
empty
DDR400 DDR400
single rank
DDR400 DDR400
double rank
DDR400 DDR400
empty
DDR400 DDR400
empty
DDR333 DDR333
single rank
DDR400 DDR400
double rank
DDR333 DDR333
single rank
DDR333 DDR400
double rank
DDR200 DDR400
single rank
DDR200 DDR400
double rank
DDR200 DDR333
single rank
DDR333 DDR400
double rank
DDR200 DDR333
single rank
DDR200 DDR333
double rank
DDR200 DDR333
single rank
DDR333 DDR333
double rank
DDR200
single rank
DDR200
double rank
DDR200
13
2T
3
4
DDR333
4
DDR333
4
DDR333
4