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macOS Sierra PB: Need testers for new AMD Radeon drivers!

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We might get driver support, but actual liquid cooled cards in a machine support might be a stretch ... Way back when during the PowerMac G5 times, Apple released a liquid cooled G5. These were the early days of liquid cooling, the technology was not mature, and there were a lot of leaks ruining the equipment. Apple swore off of that approach and has never used it since then.
The mother board should be handling the Extra pump/fan connection, the real question would be the dual card support.
 
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@mork, I connected my RX 460 using DVI-D adapter to HDMI and my RX 480 HDMI to the same monitor, an AOC 24". I used -v for boot argument and got this at boot. This is HDMI 1 which is the DVD adapter to HDMI from. the Gigabyte RX 460.

IMG_3228.JPG


Then I switched the monitor to HDMI 2 and got this from the RX 480. Whitescreen? I've been waiting for the sleep to kick in and then hit the keyboard to see what happens.

IMG_3227.JPG


ENote: This is on an X99 type system (R7 1700) running Sierra 12.4 using chameleon 2667 bootloader. I repeated the booting process and only the HDMI conection gets the white screen, the 3 Displayports all lead to black screen. The RX 460 HDMI and DisplayPort connections also have black screen. I will now try with my pentium setup in peg mode.

Same old black screen, but I got this message from the DVI-D connection.

IMG_3232.JPG
 
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The mother board should be handling the Extra pump/fan connection, the real question would be the dual card support.
As the saying goes ... Well stranger things have have happened, I am sure the gamers would like Crossfire to come to macOS.
 
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I haven't checked lately most of my time has been dedicated to Sierra testing. The 0x6864, 0x6868 IDs that have recently popped up are for the 8-16gb water cooled Vega but the 4100 kext has the 0x67EO, 0x67FF, and 0x67EF so that's a bit weird. Most of the 68xx IDs are from other Kexts.
 
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FWIW, the update to 10.12.5 general release did not make any changes to the Apple-AMD 9510 controller and 4100 kexts. These are the same as in the last public beta version.
 
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