With 1 GB supported per DIMM, the SiS649's two slots can support 2GB of system RAM. Either DDR or DDR2 can be used, offering a handy upgrade path for users who want to buy the motherboard now and use their existing RAM, perhaps later upgrading to DDR2 when ready.
The SiS649 also features SiS MuTIOL® 1G technology which helps facilitate smooth transfers of data between South and North Bridges.
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