Cannot resolve the collation conflict between "SQL_Latin1_General_CP1_CI_AS" and "Latin1_General_CI_AS" in the equal to operation.
To get around this issue you can still join between them by using the COLLATE command to choose the collation you want
SELECT * FROM A JOIN B ON A.Text = B.Text COLLATE Latin1_General_CI_AS
or using the default database collation
SELECT * FROM A JOIN B ON A.Text = B.Text COLLATE DATABASE_DEFAULT