WikiDBA

—    Step -1 Check Your Configuration Values at Server level
   SP_CONFIGURE  ‘show advanced options’,1
Reconfigure with Override
go
—    Step -2 Check About “min server memory (MB)” & “max server memory (MB)” options Config_value
    SP_CONFIGURE ‘min server memory (MB)’
    SP_CONFIGURE ‘max server memory (MB)’
—    Step -3 Now you can set your prefer amount of Memory as Min & Max as per your’s Server Actual RAM, If its pure DB Box, Its Preferd as SQL:OS is 80:20 ratio ( Its my opinion, not any Standard).

    SP_CONFIGURE ‘min server memory (MB)’,1024
   Reconfigure with Override
go
SP_CONFIGURE ‘max server memory (MB)’,80% of Your Total RAM
   Reconfigure with Override
go