Thanks for the answer! We'll order a 2 x Opteron2xxx series (Dual Core) and the memory will be 16-32 Gb. This server is only for DB - non other services such as hosting, mail and so on. I'm not system integrator, but the project manager and interesting about: - existing the free OS that ideally supports hardware above in conjunction with PostgreSQL 8.x that will use dual core and big memory Thanks! "Martijn van Oosterhout" <kleptog@xxxxxxxxx> wrote in message news:20061012102647.GD11723@xxxxxxxxxxxx