Max Memory Settings Not Working (SQL Server 2008 R2)

Question

I have 12 GB ram in sql server 2008 R2 of 64 bit server (Windows 2008 R2).
I have set the Max memory setting to 12288 MB Memory setting.
Still the usage of sql server process is around 14  GB.
Is Max memory setting not working?
I have also enabled AWE after all it is 64 bit.
Thanks

Answer 1

Problem is that: my OS is halting due to this RAM. I have 16 GB of ram and assigning 12 GB to SQL SERVER and rest is using for OS. Please guide me how to get information about actual memory usage from all sql server processes. like
all CLR etc 
Hi,
Are you also running SSIS/SSAS/SSRS with database engine services. What do you mean by OS is halting ?
If you want to check whether SQL Server is facing memory crunch please have a look at perfmon counters from
this link
Sys.dm_OS_memory_clerks would be DMV helpful in tracking memory utilized by various processes
I have also enabled AWE after all it is 64 bit. Thanks
Please note AWE doe snot have any notable affect in 64 bit system.
Below will tell you memory used by SQLCLR
select single_pages_kb + multi_pages_kb + virtual_memory_committed_kb from sys.dm_os_memory_clerks where type = 'MEMORYCLERK_SQLCLR'
Below query will give you memory consumed by various clerk
SELECT type, SUM(multi_pages_kb)
FROM sys.dm_os_memory_clerks
WHERE multi_pages_kb <> 0
GROUP BY type
ORDER BY SUM(multi_pages_kb) DESC
Can you reduce max server memory to 11 G and see if it gives some relief
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