SOS! NVRAM cleaning issue Asus ROG STRIX Z390-E Gaming - i9-9900k
- Thread starter JazepsMalta
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Well, then they're gonna have to remove USBInjectAll.kext and SSDT-EC-USBX-DESKTOP.aml from the config and OC.
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Per OpenCore Guide Fix USB, USBInjectall used only during mapping for older chipsets before skylake
Skylake and newer have 26 and do not need USBInjectALL during mapping
I decided to read more about prebuilt SSDT in the ACPI section which clued me into these 2 SSDT
namely the twp I changed
SSDT-EC-USB-DESKTOP replaced SSDT-EC-USBX doing this fixed a issue with an external USB 3.0 HD - not shown in Cataline - but visable to OpenCore for a boot drive - Time Machine Backup Drive
SSDT-PLUG-DRTNIA replaced SSDT-PLUG
I have the other 2 default SSDT for Coffee Lake AWAC and PMC with one for RX580 to improve its performance
The Guide is a starting point but read any section that may apply to improve stability and maybe improve performance
Note I swtiched from a Gigabyte Z390 Aurps Pro - at Gigabyte for repair - it may not actually need repair
to a MSI Z390-A Pro so I would have a working system - killed 4-5 power supplies all but one with the Gigabyte Board
Now thinking a Display Port Cable was causing it.
Did I have to modify my config.plist not one bit other than changes for 0.5.9 release I now using 0.6.0
Skylake and newer have 26 and do not need USBInjectALL during mapping
I decided to read more about prebuilt SSDT in the ACPI section which clued me into these 2 SSDT
namely the twp I changed
SSDT-EC-USB-DESKTOP replaced SSDT-EC-USBX doing this fixed a issue with an external USB 3.0 HD - not shown in Cataline - but visable to OpenCore for a boot drive - Time Machine Backup Drive
SSDT-PLUG-DRTNIA replaced SSDT-PLUG
I have the other 2 default SSDT for Coffee Lake AWAC and PMC with one for RX580 to improve its performance
The Guide is a starting point but read any section that may apply to improve stability and maybe improve performance
Note I swtiched from a Gigabyte Z390 Aurps Pro - at Gigabyte for repair - it may not actually need repair
to a MSI Z390-A Pro so I would have a working system - killed 4-5 power supplies all but one with the Gigabyte Board
Now thinking a Display Port Cable was causing it.
Did I have to modify my config.plist not one bit other than changes for 0.5.9 release I now using 0.6.0
Last edited:
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so how to remove this error in the BIOS?
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I removed USBInjectAll.kext and SSDT-EC-USBX-DESKTOP.aml from the config and OC
Last edited:
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- Z370M-DS3H
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- RX580 & UHD630 Headless
General Troubleshooting · GitBook
dortania.github.io
3. BIOS reset or sent into Safemode after reboot/shutdown
Issue with AppleRTC, quite a simple fix:
- config.plist -> Kernel -> Quirks -> DisableRtcChecksum -> true
--------------------------------------------------------------------------------------------------
Note: If you still have issues, you'll need to use RTCMemoryFixup and exclude ranges.
The following boot-arg should handle 99% of cases (pair this with RTCMemoryFixup):
Code:
rtcfx_exclude=00-FFIf this works, slowly shorten the excluded area until you find the part macOS is getting fussy on.
For example: 00-FE, 00-FD, 00-FC...
- Joined
- Jun 5, 2020
- Messages
- 24
- Motherboard
- Asus Rog Strix Z390-E Gaming
- CPU
- i9-9900K
- Graphics
- Sapphire Radeon RX 5700 XT NITRO
- Mobile Phone
General Troubleshooting · GitBook
3. BIOS reset or sent into Safemode after reboot/shutdown
Issue with AppleRTC, quite a simple fix:
- config.plist -> Kernel -> Quirks -> DisableRtcChecksum -> true
--------------------------------------------------------------------------------------------------
Note: If you still have issues, you'll need to use RTCMemoryFixup and exclude ranges.
The following boot-arg should handle 99% of cases (pair this with RTCMemoryFixup):
Code:rtcfx_exclude=00-FF
If this works, slowly shorten the excluded area until you find the part macOS is getting fussy on.
For example: 00-FE, 00-FD, 00-FC...
Thank you very much, the BIOS is no longer reset, remaining a problem only with messages at boot, how to remove them?
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- Asus Rog Strix Z390-E Gaming
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- Sapphire Radeon RX 5700 XT NITRO
- Mobile Phone
Hello to everybody, after NVRAM cleaning, the boot disk menu has disappeared, now I can not select the boot. Windows immediately loads. no choice for macos. How to fix it? 
((((
I can load only with usb stick
opencore 0.6.0
((((I can load only with usb stick
opencore 0.6.0
Last edited:
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Sounds like your boot order has changed and not booting from your OSX disk. Just change it in bios.no choice for macos. How to fix it?
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Hey Big-W, I am having issues installing onto the same motherboard as you... do you have an EFI for the Z390-F ? ... or can you point me to what has worked for you ?? the error I actually get is an error preaparing the installation. I am using an EFI I found for the Z390-I for Clover.
Your help would be greatly appreciated.
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