Hi,

I had the same issue, all my error log was with the message:

starting up databases xxx checkdb for database xxx finished without errors

Below forum has helped me:

http://social.msdn.microsoft.com/Forums/sqlserver/en-US/61492307-1849-4a07-ad80-0499a5e5425f/checkdb-running-constatly?forum=sqldatabaseengine

Just set the database options of Auto_Close to false.

Cheers...!!