A520M Gaming - not booting to bios

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   I have built a new PC on the A520M Phantom Gaming 4 motherboard, and it won't boot into bios - absolutely no dsiplay at all.

Not yet loaded windows as cannot get that far.

I switch on, press power button and lights come on, fans run but that is all.
I have no additional boards installed, and even removed the USB connections. I have tried both HDMI and DP video out.
Items installed are -
  A520M Phantom Gaming 4 motherboard
  500W GameMax RPG Rampage 80 Plus Bronze PSU
  Kingston FURY Beast 32GB (2x16GB) 3200MT/s DDR4 Memory Kit (with both and one stick (slot A2 & B2 - or only B2)
  AMD Ryzen 5 5500 6 Core/12 Thread AM4 CPU 

I have tried removing the CMOS battery and replacing.

I have previously built a few PCs (one last week using B550 Phantom Gaming4 MB)

Please point me where I am going wrong.

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pads Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 3 hours 18 minutes ago Location: Leeds uk Status: Offline Points: 20	Post Options Post Reply Quote pads Report Post Thanks(0) Quote Reply Topic: A520M Gaming - not booting to bios Posted: 3 hours 3 minutes ago at 11:43pm
	I have built a new PC on the A520M Phantom Gaming 4 motherboard, and it won't boot into bios - absolutely no dsiplay at all. Not yet loaded windows as cannot get that far. I switch on, press power button and lights come on, fans run but that is all. I have no additional boards installed, and even removed the USB connections. I have tried both HDMI and DP video out. Items installed are - A520M Phantom Gaming 4 motherboard 500W GameMax RPG Rampage 80 Plus Bronze PSU Kingston FURY Beast 32GB (2x16GB) 3200MT/s DDR4 Memory Kit (with both and one stick (slot A2 & B2 - or only B2) AMD Ryzen 5 5500 6 Core/12 Thread AM4 CPU I have tried removing the CMOS battery and replacing. I have previously built a few PCs (one last week using B550 Phantom Gaming4 MB) Please point me where I am going wrong.
	Peter