SQL Server High Memory Utilization

Hello Experts

I am running SQL2005 SP3 on a Windows 2008 SP2 64Bit and I am getting very high memory issues. The server has been allocated 12GB of memory and it is using 98% of that constantly.

I am not a SQL expert so I need some hand holding to troubleshoot this. I have looked at task manager and I have attached the screenshots for that.

Resource Monitor 1Resource monitor 2
Is there anything I can do to get this under control?
OZSGAsked:
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Anthony PerkinsConnect With a Mentor Commented:
The application that uses the SQL server is very slow in the morning between 8 and 9am. I need to find out what is causing it.
I trust the application is not running on the same server.  If not you need to focus on long running queries using a tool such as Adam Machanic's sp_whoisactive:
http://sqlblog.com/blogs/adam_machanic/archive/2011/04/27/who-is-active-v11-00-a-month-of-activity-monitoring-part-27-of-30.aspx
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David Johnson, CD, MVPOwnerCommented:
sql server will use any and all available memory unless you limit it.

bring up sql management studio, connect to your server, right click on the server instance, select properties, and adjust as required. I've ajusted mine.. it was originally some riduculous maximum 16TB
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OZSGAuthor Commented:
I have already apparently but it is still high

AWE Settings
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Anthony PerkinsCommented:
I have already apparently but it is still high
This is by design.  What problem are you trying to address?
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OZSGAuthor Commented:
The application that uses the SQL server is very slow in the morning between 8 and 9am. I need to find out what is causing it.

I have checked backups and I checked scheduled tasks both on SQL as well as on the server itself but nothing is running and I am at a lost as to where to start next.
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