I have a system that uses a VIA KT400 chipset. The board is made by MSI.

I have an Athlon XP2000+ in it with 256MB of DDR333 memory. I however now have 2 more 256MB DDR266 DIMMS laying around. All are CL2.5.

Would I be able to mix these and the system would just scale down the DDR333 to act like the DDR266 like PC100 does with PC133?