Hello Kolmeyer,
I am inclined to agree with your friend as Coolmax PSUs are awful, best way to check his theory is to remove the GTX1060 from the computer altogether, hook your screen up to the appropriate video port on the MB, reassemble and test.
I am inclined to agree with your friend as Coolmax PSUs are awful, best way to check his theory is to remove the GTX1060 from the computer altogether, hook your screen up to the appropriate video port on the MB, reassemble and test.