Just to reiterate here...
GilaMonster (12/18/2012)
Don't use Task Manager to check SQL's memory. It can be completely wrong.
Use Perfmon with either the SQL Server memory counters and/or the process-specific counters.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability