Hello;
I never heard a noise when a lost my turbo , it just wouldn't make boost . it wouldn't go over 8# , even with the wastegate rod shortened has short has it would go.
With the engine off & cold , remove the down pipe and check the turbine wheel for side to side and in & out play. There will be some side to side play , but not enough for the wheels to hit the housing. , How ever there should be NO in & out play.
Be careful not to damage the wheel.