Monitor 'no signal' when plugged into GPU but gets signal from mobo

[thomas.dawson6605]

Hi! I don't know if this is in the right thread or not but i recently built my own PC and i plugged my HDMI cable into my mobo but then realised it uses my intel integrated graphics card but i want it to use my radeon rx 580. When I plug the HDMI cable into my motherboard it gets a signal but when I plug it into the GPU it says 'no signal' do i need to tinker with the BIOS? Please help

GPU: Saphire Nitro+ Radeon RX 580 8GB GDDR5
CPU: Intel i7 6700k
SSD: Samsung 500GB
HDD: Apple HDD 500GB
Motherboard: Republic of Gamers MAXIMUS VIII HERO
PSU: EVGA 750

 

[jay32267]

Good chance you need to tinker with the BIOS.

Go into the BIOS and look for something that allows you to disable the integrated graphics.

This item can be called different things in different BIOSes....but it's usually not too hard to find.

 

[thomas.dawson6605]

Good chance you need to tinker with the BIOS.

Go into the BIOS and look for something that allows you to disable the integrated graphics.

This item can be called different things in different BIOSes....but it's usually not too hard to find.

Hi! Does disabling the integrated graphics make my monitor turn on from the HDMI cable plugged into the GPU?

 

[jay32267]

It should. You have to have your monitor plugged into the GPU as well.

 

[thomas.dawson6605]

It should. You have to have your monitor plugged into the GPU as well.

I'm sorry but I can't find it, I have googled the problem and bump. Do you know step by step how to disable it in the Republic of Gamers BIOS settings. I should say that I tinkered with the settings slightly to see what I could find slightly but I don't think that did anything - I also tried connecting each of the 3 cables into my monitor from the GPU and still nothing, maybe I didn't install the GPU right? I mean, it lights up when I turn it on but isn't identified in the display adapters tab in the device manager ;(

 

[jay32267]

Have you installed the driver for the RX 580?

You need that card to show in Device Manager or it will never work.

 

[ffg7]

thomas.dawson6605, check in chapter 3 in your motherboard user manual. also do you have a cable plugged into the videocard from the power supply?

 

[thomas.dawson6605]

thomas.dawson6605, check in chapter 3 in your motherboard user manual. also do you have a cable plugged into the videocard from the power supply?

I have an 8 pin VGA plug

 

[thomas.dawson6605]

Have you installed the driver for the RX 580?

You need that card to show in Device Manager or it will never work.

When I download the software it just says unsupported AMD graphics hardware. I hope I downloaded the wrong software o.o

 

[jay32267]

Here is the page for the drivers.

Make sure you use the one for your operating system....Windows 10....Windows 7....etc

https://www.amd.com/en/support/graphics/radeon-500-series/radeon-rx-500-series/radeon-rx-580

 

[ffg7]

thomas.dawson6605, if that 8 pin cable is from the psu to the videocard then it is not a vga cable. a vga cable connector has 3 rows of pins & connects a vga port on a monitor to either a videocard's vga port or the motherboard's onboard video vga port.

jay32267, videocard will still work without proper driver installed as windows uses a generic video driver til proper driver is install.