A friend says he's seen Duo and Quad desktops for sale with odd-amounts of memory (e.g., 3 GB). That sounds strange to me because I believe memory should be installed in equal-size pairs on motherboards using dual-channel chipsets (e.g., 2+2, or 2+2+2+2, but not 2+1). All Intel chipsets for Duo and Quad I know of are dual-channel, so I'm wondering: Are there compatible triple-channel chipsets available from other vendors?