Is ddr 266 (pc2100) memory compatible in a ddr3200 system looking into buying new motherboard and cpu and curious if i will lose the memory i have i would make sure its both the same pins just need to know if it will down grade and use this memory for now
Yes it should be. You can go to the Motherboard Manufacture web site and check what is compatible memory for the MB you want to get. It should be listed there.
Yes, although it’ll be a severe bottleneck.
This can only be a temporary solution (until you save up for PC3200)