Question No Display in BIOS Splash Screen or BIOS menu and Safe Mode

[Sh_fal]

Hello..
Recently I upgraded my Monitor to Huawei 24 inch AD80HW.
Problem is when I boot my PC display won't turn on until Windows 10 login screen. The display won't show motherboard bios splash screen also when I press delete key to enter bios menu it shows black screen
Tried Safe mode which is same No display.
The Monitor is connected to Graphics card(Rx560 4gb) with HDMI.
Sometimes I got black screen when Video starting to play. Not in Game though.
In game GPU is fine with 100% load and 70°C temperature.
My old Monitor have no issues with it.

PSU is Corsair 450w which is more than enough to power up my old component. And it's 100% good.

Here's thing I tried so far...
1.Changing HDMI cable
2.Cleared and Reset CMOS battery/BIOS.

1. Uninstall/install Graphics Driver to latest or previous versions.
2. Removing GPU and set the cable to Motherboard.

Any help Will be appreciated 😊

 

[Colif]

does motherboard have video outs? Have you tried attaching monitor to it? Its possible default for bios is sending it to the igpu.

Have you got display ports on the Rx560 4gb, have you tried them?

 

[Sh_fal]

Yeah I tried with Motherboard to Monitor connection. It has igpu.
But no screen is showing.
Rx560 has a Display port but currently i have no DP to HDMI addaper/cable to connect with monitor.

 

[Sh_fal]

Hi.
Thanks for replying.
I tried again with both vga and hdmi to Motherboard while gpu removed. Then it works. After entering bios i made some changes like fastboot. And it now works with GPU too.