kaworu Posted October 14, 2019 Share Posted October 14, 2019 (edited) I migrated my build from Clover to OpenCore, and now every time I boot my system I get the screen attached. What is really weird is that macOS itself works fine: except from native NVRAM everything (boot, reboot, power off, sleep, USB and connected devices, GPU acceleration, Audio, WIFI, Bluetooth, FileVault2, AppStore, iCloud, Airdrop and HandOff) seems to work perfectly. If I press F1, enter UEFI setup and quit immediately without saving changes the system boots fine. I'm running Catalina on the following: Core i7 8700 Asus Rog Strix H370-I gaming No dGPU 32GB DDR4-3200 (at 2666Mhz since that's what the CPU supports without OC) Samsung 970Evo Plus Broadcom BCM94352Z DW1560 WiFi card (replaced the original one) Booting off a Linux Live USB drive, thus bypassing OpenCore, fixes the issue. Edited October 14, 2019 by kaworu Link to comment Share on other sites More sharing options...
Andrey1970 Posted October 14, 2019 Share Posted October 14, 2019 On H370 native NVRAM doesn't work correctly. Set DisableVariableWrite=Yes 1 Link to comment Share on other sites More sharing options...
kaworu Posted October 14, 2019 Author Share Posted October 14, 2019 I already have DisableVariableWrite=Yes I'm attaching my config.plist (editing out the system's UUID I generated) config.plist Link to comment Share on other sites More sharing options...
kaworu Posted October 16, 2019 Author Share Posted October 16, 2019 Digging around some more I found people having a similar issue with Asus boards. In that case the fix was related to RTC and included in an update to Clover. While I have RTC disabled in my UEFI settings to begin with, I have tried applying both SSDT-AWAC and SSDT-RTC0 from OpenCore's ACPI samples (which are supposedly fixes for RTC related issues on 300 series motherboards), but no luck. Can someone please help? Link to comment Share on other sites More sharing options...
Erroruser Posted October 17, 2019 Share Posted October 17, 2019 had the same issue on my asus z390 the fix is hide F1 post in the bios Link to comment Share on other sites More sharing options...
tanyakarn Posted October 22, 2019 Share Posted October 22, 2019 I had the same issue on my H370 plus board. I fixed it by adding the AppleRTC patch: Link to comment Share on other sites More sharing options...
kaworu Posted November 1, 2019 Author Share Posted November 1, 2019 Thank you so much and sorry for the late reply, your fix worked perfectly - this one issue has been driving me nuts for weeks. Finally my Hack Mini is a golden build again. Link to comment Share on other sites More sharing options...
NoEnd Posted February 4, 2020 Share Posted February 4, 2020 I have Asus z390 Hero, I have added AppleRTC patch however I'm still falling into POST in safe mode. Link to comment Share on other sites More sharing options...
Kaisar870 Posted May 27, 2020 Share Posted May 27, 2020 On 10/22/2019 at 1:38 AM, tanyakarn said: I had the same issue on my H370 plus board. I fixed it by adding the AppleRTC patch: Hi, I don't understand how to add RTC patch, could you please explain? Link to comment Share on other sites More sharing options...
lennonboxo98 Posted June 29, 2020 Share Posted June 29, 2020 On 22/10/2019 at 3:38, tanyakarn said: Tuve el mismo problema en mi placa H370 plus. Lo arreglé agregando el parche AppleRTC : You use Clover or OpenCore?? Link to comment Share on other sites More sharing options...
mioexe Posted July 30, 2020 Share Posted July 30, 2020 Hello, i have an h470 motherboard and i use opencore, how can i apply this patch? Link to comment Share on other sites More sharing options...
RandomCoder Posted August 9, 2020 Share Posted August 9, 2020 I can confirm that RTC Patch helped in my case. I upgraded to OC 0.6.0, and made some changes according to suggestions by sanity checker. Somehow it caused POSTed issue again (I know I've fixed it before). So my current settings are: Legacy RTC in BIOS SSDT-AWAC.aml AppleRTC patch I think I don't need all 3, but I don't want to change it. For those who use OC, you can open config.plist with a text editor and paste the patch under section: Kernel > Patch (it's an array) Link to comment Share on other sites More sharing options...
Sheva007 Posted September 17, 2020 Share Posted September 17, 2020 +1, I confirm that adding AppleRTC patch to my config solved the issue for me Build: i7-8th gen, RX580, OC 0.6.1 Link to comment Share on other sites More sharing options...
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