New PC No Signal To Monitor

[Darkvillan]

New PC build. Finally got it all assembled, moved it into my room plugged everything in, powered it on and... no signal to my monitors. Everything stays powered on. I dont have a speaker to hear if it is POSTing or not. Specs below...

Mobo: Asus Z270F Strix 
CPU: 7700k
Cooler: Corsair H100i V2
Case: Corsair Obsidian Full Tower 750D
Graphics: MSI GeForce 1070 8g Gaming
RAM: G.Skill TridentZ RGB (8×2)
PSU: Corsair RMx 850w

Any help would be greatly aopreciated


Tried Fixes
1. Different Ports/Cables on Monitors and Pc
2. Tried onboard and GPU
3. Move ram around
4. Try one stick
5. Rebuild
6. Rewire
7. Reset CMOS

Cpu light blinks then DRAM light stays on

 

[Gahl1k]

Do your PC work with fine onboard Graphics card?

 

[smorizio]

look at the last 4 numbers of the mb serial that the bios number. if it old go here.
https://www.asus.com/us/Motherboards/ROG-STRIX-Z270F-GAMING/HelpDesk_BIOS/
download the last bios and use the bios renamer to rename the bios for the usb flashback.
use the usb flashback port to update the bios.

 

[Darkvillan]

Onboard graphics wont work either, planning to return the mobo for a new one, will check the version tho

 

[Darkvillan]

RMA'd the mobo and got the new one today! I reassembled the PC and still nothing. Not sure my next step, someone PLEASE HELP ME!

 

[Gahl1k]

You should consider getting a speaker to know what's the problem, otherwise it will be guessing. Try to power up your PC with PSU, MoBo, CPU and one stick of RAM only.

 

[RetiredChief]

Make sure you are seating the 24 pin and the 8 pin MB connectors fully and correct polarity. Might want to get a cheap PSU tester to make sure your PSU is providing proper Voltages.

$24 https://www.newegg.com/Product/Product.aspx?Item=N82E16899705003&cm_re=psu_tester-_-99-705-003-_-Product