Pc wont start, tried all regular troubleshooting

Medo_1

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Aug 30, 2015
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Before you say anything ive tried everything on the tomshardware forum for posting, ive ordered a diagnostic speaker, tried three monitors, the issue is that it starts and doesnt display signal. I need this computer for work so any help that you can supply is beneficial.
I tried resetting cmos, i tried using anoyher port on my gfx card, i tried unplugging psu and holding power button, ive tried booting without the gfx card, ive tried booting with one stick of ram and no hdds, i have no idea what else to do. Jve seated and reseated everything imaginable, and yes i checked and double checked the 24 pin mobo wire. This is an old build, however it was working two days ago. I initially thought my gfx card was faulty so i tried board only. Im totally lost here. Just to be clear it starts just doesnt show anything on the monitor, not even a splash screen just no input. I would also like to note that two days earlier i installed an update on my gfx card from amd not sure what version, just the latest

Specs: z97 e asus
8gb 2x8 ballistix ram
Cpu is a i5 4570
R9 390 8gb gigabyte windforce
I have multiple fans as well
Psu is a 750w corsair and is functional.