Have you seen the above message within the SQL Server error logs? If not then no need to worry and make sure to continue your performance monitoring tasks. So when to be concerned! It is evident that SQL Server 2005 component handles memory differently...
SQLServer-QA.net - Knowledge Sharing Network (SSQA.net)
Fri, Mar 7 2008
Filed under: Filed under: sql server, performance, memory, dmv, windows, 2000, 2005, awe, 64 bit, monitoring, worker threads, paging out, buffers, verison