ECS Photon Extreme KN3 SLI2 Manual page 24

Table B Unbuffered DIMM Address Timings and
Drive Strengths for AM2 Package
1 1
DRAM DIMM1 DIMM2 Timing Address Timing
Speed Mode Control Register
DDR2-400 - Any 1T 002F_2F2Fh
DDR2-400 Any Any 2T 002F_2F2Fh
DDR2-533 - Any 1T 002F_2F2Fh
SRx16 SRx16
DDR2-533 2T 002F_2F2Fh
SRx16 SRx8
SRx8 SRx16
DDR2-533 SRx8 SRx8 2T 0000_2F2Fh
DDR2-533 DRx8 DRx8 2T 0034_2F2Fh
DDR2-533 DRx8 SRx16 2T 0038_2F2Fh
SRx16 DRx8
DDR2-533 DRx8 SRx8 2T 0037_2F2Fh
SRx8 DRx8
DDR2-667 - Any 1T 0020_2020h
SRx16 SRx16
DDR2-667 SRx16 SRx8 2T 0020_2020h
SRx8 SRx16
DDR2-667 SRx8 SRx8 2T 0030_2020h
DDR2-667 DRx8 DRx8 2T 002B_2020h
DDR2-667 DRx8 SRx16 2T 002C_2020h
SRx16 DRx8
DDR2-667 DRx8 SRx8 2T 002A_2020h
SRx8 DRx8
DDR2-800 - Any 2T 0020_2520h
DDR2-800 Any Any 2T 0020_2520h
Table C: Recommended dual-channel DDR configurations
Output Driver
Compensation
Control Register
X011_1222h
X011_1322h
X011_1222h
X011_1322h
Notes:
X011_1322h
X011_1322h
X011_1322h
X011_1322h
X011_1222h
X011_1322h
X011_1322h
X011_1322h
X011_1322h
X011_1322h
X011_3222h
X011_3222h
DDR1 DDR2 DDR3 DDR4
√ √
√
√
√ √
√ √
1. When using dual channel mode, install only same (same density, DRAM
technology and DRAM bus width) module for each deal channel.
2. Please note that those types not in the Table B will not boot up.
3. The motherboard doesn't support three memory modules. If three memory
modules are inserted, the system may boot but not function normally.
Dual Channel
√
√
√
2-3