@Macpeet Thanks for new Guide  Here my EFI Folder Optiplex 790 for High Sierra 10.13 to 10.13.4 EFI folder containing all the Drivers64, Drivers64UEFI and a stock DSDT. GFX0 is renamed to IGPU No Graphics patch in the DSDT.   The default config.plist is for the ➤ Saphire Radeon HD 5570 1 gig (native support) Sleep and wake works   The 5450 config works on all ➤ Radeon HD 5450 1 gig or 2 gig   The GT 1030 config is for the ➤  Zotac Geforce GT 1030 2 gig (Web Drivers) Sleep and wake works   The config 6670 is for the ➤  Saphire Radeon HD 6670 1G (Native suppoort)   Note: My Optiplex  790 have a ➜ CPU i5 2500k with Injector GPU so all this Graphics card works with the config.plist in the EFI Folder no kext rollback is need with the i5 2500k EFI Optiplex 790 (HS-10.13).zip