windows server 2003 R2 64bit not seeing more than 4gb ram

Question

shouldn't win 2003 R2 64bit see more than 4gb by default or am I missing a setting somewhere? hardware is SuperMicro X6DVA-EG.

http://msdn.mzicrosoft.com/en-us/library/aa366778%28VS.85%29.aspx#physical_memory_limits_windows_server_2003

Answer 1

Does the BIOS see it? The supermicro's can be really funny with RAM placement..

Answer 2

Make sure the RAM is installed according to the Manual

an interleaved memory scheme is used, you must install two modules at a time, beginning with DIMM #1A, then DIMM #1B, and so on

Answer 3

eventhough it was a windows 2003 64bit, I ended up adding PAE(physical address extension) to boot for it to see more than 4gb ram.

c:>bootcfg /id 1 /raw PAE

Thanks for everyone's help.