Using System Preferences, change display resolutions and screen arrangement to desired settings.Can confirm in the System Report under “About this Mac” that eGPU is AMD RX 580. External monitor will come to life as second display.Two seconds later, message that eGPU detected and logout required will appear on the first monitor.Attach TB3 à TB2 adapter to TB3 Sonnet box input, TB2 cable to adapter, and TB2 cable to Mac Mini TB1 port.Cable up the external monitor to the Sapphire Pulse card outlet.Turn off the Sonnet Breakaway power switch.Attach generic HDMI cable to Mac Mini and HDMI monitor.It helps to use the HDMI out on the Mac Mini for setup, otherwise no picture on the external GPU monitor makes it hard to diagnose problems since you are working blind. Does not work: LG OLED65B7 (HDMI) television.Īfter repeated failure trying to use a LG OLED65B7 television as the external display, it appears that the LG HDMI is not compatible with the Sapphire Pulse card. Monitors that have been successfully used: Dell P2715Q (4K), NEC PA271W, Asus VA32AQ, other HDMI 1.4 television. Sonnet Breakaway Box 350, Sapphire Pulse RX 580 8GB, Apple TB3à TB2 adapter, Apple TB2 2m cable, generic Displayport cable.
