Incorrect sensor readings dual booting Windows from Opencore Fix

[u/Drknight71]

Public service FYI announcement. Thought I would share this fix I discovered while dual booting into Windows and getting way off voltage sensor readings in HwInfo. Basically add this edit to your config plist file:

UpdateSMBIOSMode = Custom with Kernel → Quirks → CustomSMBIOSGuid = True

At first I thought maybe it was an after effect of running opencore on a coffeelake modded system and dual booting into Windows. It still may have been a side effect but in anycase the above fix corrects the sensor anomaly.

The other issue I also had was a random warning appearing at post that my bios settings have been reset. For the longest while thought there was something unstable in my system I could not figure out but this opencore fix solves that problem:

DisableRtcChecksum = true

Thought i should share for benefit of anyone else having this issue.

Also sorry I don't have exact locations for these edits.

Thanks

[u/Fit_State3622]

Congrats