Biostar P4TSG PRO P4TSG Pro user's manual - Page 9

DDR DIMM Modules: DDRA1-2, DDRB1-2 Supports up to four DDR DIMMs(two DIMMs per channel), single-sided and/ or double-sided. For Dual Channel Operation, DIMMs must be populated in identical pairs. It has to be the combination of DDRA1+DDRB1 (Blue DIMMs) or DDRA2+DDRB2 (white DIMMs). Dual Channel Guidelines Matched DIMM configuration in each channel ─ Same Density (128MB, 256MB, 512MB, 1GB, etc.) ─ Same DRAM technology (128M-bit, 256M-bit, or 512M-bit) ─ Same DRAM bus width (x8 or x16) ─ Both either single-sided or dual-sided Matched in both Channel A and Channel B memory channels ─ Populate symmetrical memory slots Optimal platform performance with Dual Channel, DDR400, matched DIMMs ─ Fully loaded configurations can be single or double sided DIMMs ─ Lightly loaded configurations need to be double sided DIMMs When not using DDR400, best performance obtained with ─ Symmetrical DIMM population and matched double-sided DIMMs ─ Lightly loaded configuration 7