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H470m-hdv and RX570 GPU problem

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Branko View Drop Down
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    Posted: 22 Feb 2023 at 6:47pm
If CSM bios setting is set to "disabled" PC won't boot...there is no picture, can't even enter BIOS.
GPU-Z says Sapphire rx570 ITX supports UEFI, and same GPU works with CSM disabled on another, AMD b450 chipset based motherboard.
BIOS is latest for H470m-hdv board, 1.30

Any ideas welcome, as I'd like to upgrade to windows 11
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threadzipper1957 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote threadzipper1957 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 2023 at 8:42pm
Windows must be installed in GPT (UEFI Mode)
Above 4G should be enabled, and Clever Access memory, also.
When you connect the onboard graphics, is the RX570 found in device manager.
If not check the pins in the CPU socket, or fill in the tech supprot form
https://tw.asrock.com/events/tsd.asp
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Kind Regards
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