In a message dated 2/28/2000 11:23:14 PM Eastern Standard Time, grijalba@cvtci.com.ar writes: << Can I use Dimm and Simm at the same time in my PC?? Somebody told they are uncompatible, is this true? Sorry for the OT. >> If you have both DIMM and SIMM sockets, im pretty sure theyll work, unless they are incompatible types of memory Jeff Barrett