hadcm3n is NOT compatible with CPUs/processors without SSE2 capabilities. That means HADCM3N is NOT compatible with
- Pentium 3, Pentium 3 based Celerons and Xeons, and older Intel processors, and
- Athlon XP/MP, Athlon XP based Semprons/Durons, and older AMD processors.
A computer with a processor listed above downloading one of these models will result in an immediate crash. This is not expected to change in the future.
When FAMOUS is available, it is compatible with these older processors. Sorry.