Hi, I would like to know how much meomory consumedon new Exchange 2007. I have Echange 2003 server running and it consumes only less than 1GB. Andmy Exchange 2007 now goes up toaround 2.8GB. Is it normal? This is not yet the production server. Only developers use it for testing. Idid not check before and after Exchange installation, but It seems to be this is extraordinary. Does anyone have a comment on this? If this is a problem, what should I look for in exchange 2007? Thanks again.

It is very normal due to the 64bit architecture. My hub transport server uses 6GB pretty steadily. See here for more info. Its an old post but still accurate. http://msexchangeteam.com/archive/2005/12/29/416613.aspx

Thank you for quick response. I only have 4GB memory. That's not enough for production server? (50 users )

Check out the sizing guidelines on www.msexchangeteam.com .

http://technet.microsoft.com/en-us/library/aa998874.aspx Is the official sizing doc for proc and memory.