See its a good thing we asked. B150 is Intel's lowest end Skylake chipset. First off the 4690k won't work with it, you need a SKylake processor such as the i5-6600k, or i7-6700k (k if you want to overclock, you can get the non-k processors if you don't). Secondly you get a lot of limitations (you can't SLI with this board, limited PCIe lanes so if you crossfire AMD cards you can't really use any of the other slots for a Sound card or and M.2 drive in PCIe or whatever).
What happens is companies offer a board like this with more features than the chipset can support, by disabling things as you use them. Like you'll find with some if you use all the PCIe slots it disables some SATA ports, or USB3.1 ports, stuff like that. In the...