This motherboard provides two pin DDR2 (Double Data Rate 2) DIMM slots and two pin DDR3 (Double Data Rate 3) DIMM slots, and supports Dual. Use a brush and wash water to clean it (if you don't have wash water, just brush it down)c. asrock n68c-s ucc manual. The memory slot is dusty or oxidized. It is not allowed to install a DDR3 memory module into DDR2 slot or install a DDR2 memory module into DDR3 slot; otherwise, this motherboard and DIMM may be. . This motherboard provides two pin DDR2 (Double Data Rate 2) DIMM slots and two pin DDR3 (Double Data Rate 3) DIMM slots, and supports Dual Channel. Instruction:The memory module is divided into SD, DDR, DDR2, DDR3 models. Channel. Você pode usar o saldo total do crédito. The memory slot is dusty or oxidized. The memory is not compatible.