You'll need to describe your problem a lot better, but this isn't normal.  I have a DNN site that gets about 6,000 hits a day on a six year old 933 MHZ system with 1 GB of RAM with no memory issues.  The same server also runs a mail server and about three dozen other sites.  SQL is on a separate server.

Error messages, log entries, server specs, etc. would help.

Jeff

I have 2 dedicated servers one for database and one for application and both are running on 2 GB Ram out of which database server is fine but application server ram memory is occupied up 1.5 /1.7 i have two 2 installations running on the server

the error i get is

Not enough storage is available to process this command.
 

do i need a better server if i add extra portals on to those servers 

can it handle traffic like 3000 to 5000 clicks 

22/10/2008 21:07:18 The following exception was thrown by the web event provider 'EventLogProvider' in the application '/' (in an application
lifetime a maximum of one exception will be logged per provider instance): System.Web.HttpException: The EventLogWebEventProvider provider failed to log an event with the error code 0x80070008.
at System.Web.Management.EventLogWebEventProvider.ProcessEvent(WebBaseEvent eventRaised)
at System.Web.Management.WebBaseEvent.RaiseInternal(WebBaseEvent eventRaised, ArrayList firingRuleInfos, Int32 index0, Int32 index1)
Error
22/10/2008 21:06:31 The following exception was thrown by the web event provider 'EventLogProvider' in the application '/' (in an application
lifetime a maximum of one exception will be logged per provider instance): System.Web.HttpException: The EventLogWebEventProvider provider failed to log an event with the error code 0x80070008.
at System.Web.Management.EventLogWebEventProvider.ProcessEvent(WebBaseEvent eventRaised)
at System.Web.Management.WebBaseEvent.RaiseInternal(WebBaseEvent eventRaised, ArrayList firingRuleInfos, Int32 index0, Int32 index1)