I have 5 x RX480 XFX 8GB cards

I've installed Phoenixminer
And i'm only getting 14 Mh/s @ stock …

How do i enable compute mode, it says i need to run it as administrator but then the miner just closes when starting....

I've installed latest AMD driver, should i install blockchain driver ?

Which OC tool is good for these cards ?

MSI AB, TRIXX or …..

thanks