![]() ![]() You may first test the CD with the RX590, simply hold C to boot your cMP, and it should boot to the Linux LiveCD. As long as there is a macOS, the OpenCore boot picker should able to show that.Ĭan you burn a Linux LiveCD for testing purpose? (but we haven't check your original BootROM version, even that shouldn't make any difference)īoth 8pin powered, assuming the same 8pin cable is used, then not the 8pin cable.ĭifferent PCIe slots tested, and the same slot works for RX590. OpenCore is working, and I built that with my XFX Radeon VII. ![]() ![]() (But you may still check if the monitor side has Display Port version selector. You tried a few ROM image, including my dump which is known good. ![]() The card itself can work on a PC, which means all hardware are good, all ports are working. Is it possible i have to plug my NVMe drive (a UEFI Win10 partition) into my friends PC, boot into BIOS and set it to UEFI (I think its also called legacy mode) so the card switches to UEFI mode after rebooting and logging back to Win10? It worked fine after I flashed every single vBIOS file, 3 from the TechPowerUp site, 1 from Martin's own Radeon VII and 1 more from the TechPowerUp site from an ASRock version which was the 1st with UEFI support which according to the flashing utility is the same as the one Martin provided, still I flashed every single one and tried it on my cMP with the same result every time. This same GPU boots and works just fine in a PC i helped my friend build. Right now the cMP wont output any image from any of the 4 outputs of the Radeon VII(3 DP 1 HDMI). XFX Radeon VII with vBIOS v105 (provided by Martin as well) on PCIe slot 1 (both 8pin power cables) Windows 10 on NVMe through adapter on PCIe slot 4 Mac OS Catalina 10.15.7 on NVMe through adapter PCIe slot 3 I'm currently using Martin's 0.8.8 package (started this thread with 0.7.8 and upgraded to latest version). ![]()
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