Dell OptiPlex GX260 use of DDR2 memory it?

Dell OPTIPLEX GX260 one of the parameters
motherboard / memory

motherboard chip Intel 845, 845D and 845E, Intel 850 and 850E, VIA VIA P4X266 and P4X266A, Guitong SiS 645, and other types of memory
maximum 1GB (shared) 3 266 DDR SDRAM memory, non-ECC
size of 128MB

You see? Does not support yo ~ ~ DDR 266 is the largest generation of DDR memory instead of DDR2-845, then to the maximum use of ddr400, but only some 845 or 266 speed, so buying ddr generation will be able to use The