AsRock Motherboard Shows no Video Signal

[CaffeineForBlood]

I just built a new computer, the fans power on and stay on but when I plug an HDMI cable into a screen that works (plugged it into the mother board and the graphics card) nothing happens.

I have a flash drive with a legit windows 10 on it ready to install but the screen just stays dark or a "no signal" message appears. Any help as to what I can do to fix this would be fantastic. (FYI I am very new to building computers so please bear with me).

 

[Scottray]

First thing to try is a CMOS reset. Look in your motherboard's manual for how do this. Second, here's a debug list to follow: http://www.tomshardware.co.uk/forum/261145-31-perform-steps-posting-post-boot-video-problems. If that doesn't work, please post the components of your build.

 

[CaffeineForBlood]

First thing to try is a CMOS reset. Look in your motherboard's manual for how do this. Second, here's a debug list to follow: http://www.tomshardware.co.uk/forum/261145-31-perform-steps-posting-post-boot-video-problems. If that doesn't work, please post the components of your build.

The CMOS was it thank you so much!

 

[ValkerieFire]

First thing to try is a CMOS reset. Look in your motherboard's manual for how do this. Second, here's a debug list to follow: http://www.tomshardware.co.uk/forum/261145-31-perform-steps-posting-post-boot-video-problems. If that doesn't work, please post the components of your build.

Thank you for this!

I had this exact same problem. I installed a GTX 1080Ti into my Asrock Z370 Gaming-ITX board and I could not get windows to detect the PCI GPU. I tried every combination possible to fix it, I even tried other PSUs, and GPUs. In the end, all it took to fix it was a single BIOS reset by holding down the CMOS button on the back of the IO panel. If I had known this, it could have saved me 4-5 hours of troubleshooting.

TLDR: use the CMOS reset before trying other hardware fixes. You won't lose your saved BIOS settings.