Is /PAE present in BOOT.INI?

Can you post the output of this batch:

select physical_memory_in_bytes, virtual_memory_in_bytes,bpool_committed, bpool_commit_target, bpool_visible

from sys.dm_os_sys_info

EXEC sp_configure 'show advanced options', 1

RECONFIGURE

EXEC sp_configure 'awe enabled'

EXEC sp_configure 'max server memory'