MP 1,1-5,1 Cannot boot into Windows 10 with RTX2060

[5883662]

Hi guys,

I'm using my old Mac Pro 5.1 2020 with an RX580 as a gaming desktop and using Windows 10 only - MacOS isn't even installed any longer, apart from the recovery stuff.

Today I received an RTX2060 and popped that in but now Windows doesn't boot at all. All I see is a white screen, nothing else. I tried different cables, ports etc, nothing helps.

I can boot into Mac OS Recovery mode with the RTX2060 but obviously that doesn't help me either.

What shall I do?

Update: Booting into safe mode doesn't work either, it won't get past the white screen. I'm assuming this is the Mac OS boot loader but I don't even see a disk selection option.

 

[5883662]

Just realised that my 6 pin to 8 pin cable (which works on the RX580) looks different to the one required by the 2060!

 

[5883662]

No, it’s the same just the manual picture is confusing.

 

[5883662]

Solved!
Windows was installed in legacy mode. Reinstalling it in UEFI mode solved all the problems.

 

[34Skyline]

watch my video I had the same problem but fix it, I had a Titan RTX in my 5,1