Hello, maybe someone can help me?



My pc:

Motherboard: Asrock Z87m oc Formula
Bios: 1.90

Cpu: I5 4690k

16gb Ram

1050ti 4gb gpu

450watt Psu

250 gb ssd



My problem is, when i start my machine, its only boot. - sometimes 3-4 times, other times 9-10 times and then it starts windows