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MP 7,1 After MPX replacement no display in bootcamp

zemaker

zemaker

macrumors 6502
Original poster
After having used a reference ATI 9800XT in my Mac Pro for years, it has finally decided to stop working. So I went back to the MPX W5700X that shipped with this computer originally. Boots fine into Mac OS, however if I try to boot into windows there is no display at all. I can hear the Windows 11 welcome sound but there is no display. Oddly enough there is no display even during the Windows boot screen, which I would assume would show if it was driver related.

I am connected via Thunderbolt to a Studio Display now, perviously I was using a DVI cable to connect to the display via the old card as it had no Thunderbolt connections. Anyhow, any ideas?
 
zemaker said:
After having used a reference ATI 9800XT in my Mac Pro for years, it has finally decided to stop working. So I went back to the MPX W5700X that shipped with this computer originally. Boots fine into Mac OS, however if I try to boot into windows there is no display at all. I can hear the Windows 11 welcome sound but there is no display. Oddly enough there is no display even during the Windows boot screen, which I would assume would show if it was driver related.

I am connected via Thunderbolt to a Studio Display now, perviously I was using a DVI cable to connect to the display via the old card as it had no Thunderbolt connections. Anyhow, any ideas?
Click to expand...

Windows lacking AMD "pro" GPU drivers?
Windows lacking Thunderbolt drivers?
Tried connecting an HDMI display? That's the highest priority port on an MPX GPU.
 
Didn’t even think that Windows 11 in this day and age doesn’t have Thunderport drivers. Will try using a HDMI display first and see where that gets me.
 
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