So I'm using a gigabyte z390 aorus elite and when I turn on the power supply all it does is turn the leds on for a split second and buzz. I'm using an i7 9700k, can someone please help?
It's a new setup brand newNew, or old setup?
Have you checked https://forums.tomshardware.com/threads/perform-these-steps-before-posting-about-post-boot-no-video-problems.1285536/ ?
Nope that doesn't work eitherThen try taking the board outside the case. Test with only CPU and CPU cooler installed, both 24 and CPU 4+4 pin power cable connected. See if the CPU fan does spin.