I've inherited a server that has 8 previously installed instances of SQL Server 2005 Developer Edition. The instance I am working with is SQL Server 2008 Express.
All of the Developer Edition instances are disabled as well as their corresponding SQLAgents. It was requested that nothing be uninstalled.
We have seen a memory error running DBCC CHECKDB on the new database:
Msg 8921, Level 16, State 1, Line 1 Check terminated. A failure was detected while collecting facts. Possibly tempdb out of space or a system table is inconsistent. Check previous errors. Msg 701, Level 17, State 123, Line 1 There is insufficient system memory in resource pool 'internal' to run this query.
Could these previously installed instances affect memory usage of the active instance even though they are disabled?