please read top to bottom!so i built a computer for my friend, but once i turned it on it did not boot to bios only stayed on with the fans spinning. my worst nightmare was yet to come. i slapped my GTX 1050ti into his and it surprisingly worked in my yet to come friends computer. then to make sure this was not a hardware problem, i punched the rx 460 into my system and then when i though it was broken, it worked in my computer. at this point i was so confuzled and desperate for this thing to work that i smacked my 80+ certified power supply into his system to see if it would work and yet again no signal. keep in mind this is a older lga 1156 platform with 8gb ddr3 ram so i could not test if the processor or ram was damaged, which is highly unlikely because again it worked with my 1050ti. so at this point i was like oh sh**, i need serious help with this computer. to make sure this was not a motherboard problem luckily had one in stock from like from the dinosaur age, dusty and all, and the same thing happened. The 460 did not get signal and the 1050 did. I even cleared the cmos and tried once again to see if the rx 460 would work and you probably could guess what happened. me myself thought i could resolve any computer problem knowing my success rate at repairing issues but here i am on toms forum for help. life is a b. the only thing i could think of is a bad gpu but it actually booted two times and never again after i unplugged the power getting to package it to give to my friend. i really dont get it. please please help.