Finally almost finished my new system, sort of (Missing GPU, that's the next thing to buy in the next few days )
Looking to get hold of of some sort of stability and burn in tools before I start overclocking, can anyone recommend any free tools ?

Intel I5 Skylake 6600k @ stock
Asus Maximus Ranger
Corsair Vengance DDR4 2666
Radeon 6950 (soon to be switched to a 970 GTX)