SQL Server Memory Mangement
Normally it is set as 70 to 75 % of the Total Physical Memory
To Change the Max Memory Settings
// First Turn on advanced options
EXEC sp_configure'Show Advanced Options',1;
GO
RECONFIGURE;
GO
// Now we will set max server memory = 3500MB for the server
EXEC sp_configure'max server memory (MB)',3500;
GO
RECONFIGURE;
GO
To check the configuration
EXEC sp_configure;