- Jul 14, 2020
- Gigabyte Z490 Vision D
- Sapphire RX6800
- Mobile Phone
@Higgie So to summarise, you have no SSDT to disable slot 1 or 2, you have your 6800 in slot 1 and your RX580 in slot 2. You boot macos and I am guessing you are using one output of the RX 580 connected to your monitor. then if you boot from windows, you use one output from your 6800 and I am also guessing that you have disabled your RX 580 in windows device manager or at least made the 6800 the default card in windows?
If it is the case, when in macos, you don't have any issue having 2 active video card? I don't think there is a way in macos like there is in windows to easily disable a video card. But if the above works, that's ok.
My only concern is that if I put the 6800 XT in slot 1, the card is so big that there is only a couple of mm between the 6800 xt and the backplane of the 5600 XT hence the airflow is heavily compromised. That is why I initially put it in slot 2.
- No SSDT to disable either slot
- RX6800 in slot 1, RX580 in slot 2
- HDMI out of 580 to my monitor, I swap this cable to the 6800 when I want to boot Windows (until i get a switcher)
- RX580 disabled via Device Manager in Windows
- No issue in macOS so far, I haven’t tried putting it to sleep since having both cards powered (although sleep was broken with my previous 6800 - reference model with the USB-C port. My new Sapphire Nitro doesn’t have the USB-C output)
- In retrospect I would have put my 6800 in slot 2, I just figured I wouldn’t have the 580 in there for long. Due to the size of the card I really wish I put it in slot 2, as I am now unable to remove it without taking my NH-D15S cooler off - reaching the PCIE slot latch is impossible!