Hello All, Hope every one is doing good. I am newly learning RAC 10g, and I am planing to implement RAC for learning purpose at my home. my question is " I already have a system with specification as System1:- Pentium 4 with 2.8ghz processor Intel original 865 mother board. 1GB of ram. and I have bought a new system today with the following specifications System2:- Pentium 4 with quad core of 2.4 ghz processor. Intel DGF33 mother board. 2GB of ram. I just now read in RAC-2-day pdf that "Oracle doen't support machines having different chip architecture." Will i be able to implement RAC with the system i have.? Please reply to this mail with your suggestion please. Thanks Nilesh Soni -- Soni Temples & Softwares are more or less the same, first we build them and then we pray ;)