came with the computer say?? The invoice???
What make and model of computer? Very few still being made with plain vanilla SDRAM, because DDR SDRAM is usually lower price and most newer chipsets only support DDR.
i just bought a new computer. how do i check if the RAM installed is DDR or just SDRAM? when i check in Control Panel > System, it just states, say 256 MB, but not if its DDR. thanks