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Gigabyte Z390 M Gaming build with working NVRAM

Question. With latest OC EFI an option in boot picker appeared I haven't seen before - "verify MSR" - I turned it off in config.plist and it's gone. My question is, what does it do, can someone explain what MSR is/does in laymans terms and is it useful for me to verify it. Thanks
 
Humanate said:
Question. With latest OC EFI an option in boot picker appeared I haven't seen before - "verify MSR" - I turned it off in config.plist and it's gone. My question is, what does it do, can someone explain what MSR is/does in laymans terms and is it useful for me to verify it. Thanks
Click to expand...
MSR is Model Specific Register. Most BIOS lock writing to these registers by default and even hide the option to unlock it. MacOS needs to write to it. The verify MSR confirms that it can be written to. See this link https://dortania.github.io/OpenCore-Install-Guide/extras/msr-lock.html
 
Second build (current)
Z390 M GAMING |  i9 9900K |  Radeon RX 580 GTS XXX Edition
First build
GA-Z87M-D3H |  i7 4770K |  HD 4600
Humanate said:
Question. With latest OC EFI an option in boot picker appeared I haven't seen before - "verify MSR" - I turned it off in config.plist and it's gone. My question is, what does it do, can someone explain what MSR is/does in laymans terms and is it useful for me to verify it. Thanks
Click to expand...

You use it to check if CFG Lock (aka MSR Lock) is enabled or disabled.
 
pastrychef said:
You use it to check if CFG Lock (aka MSR Lock) is enabled or disabled.
Click to expand...
OK. In the F9l BIOS (and F9k/j I think) we can set CFG lock to "OFF" does this mean we still have to do the MSR unlock procedure in your guide?
 
Humanate said:
OK. In the F9l BIOS (and F9k/j I think) we can set CFG lock to "OFF" does this mean we still have to do the MSR unlock procedure in your guide?
Click to expand...

No. If you can do it from BIOS menu, there's no need to do it through Grub shell.
 
pastrychef said:
No. If you can do it from BIOS menu, there's no need to do it through Grub shell.
Click to expand...
Great. Can I remove SSDT-PMC if I do it that way? Any other clean up needed in OC?
 
Humanate said:
Great. Can I remove SSDT-PMC if I do it that way? Any other clean up needed in OC?
Click to expand...

No, SSDT-PMC is required for NVRAM to work on Z390.

You can delete a lot of stuff, if you like... This is covered in post #3.
 
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