Brand new build using Gigabyte Z390 master MB and Intel I9 cpu not booting. Have tried known good PSU, multiple sticks of compatible ram, triple checked all power connectors and cooler install. All that happens is the cooler fan spins for a second and then nothing. No code shows up on the display and no error beeps. This is the second MB and cpu. Both have done the same thing. Have removed battery to clear CMOS and still nothing.