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Help! ASRock X99 Extreme4/3.1 gets stuck on boot "unknown cpu model 0x3f" [SOLVED]

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Joined
Nov 8, 2011
Messages
117
Motherboard
Z390M-ITX/ac
CPU
i7-9700K
Graphics
Vega 64
Hi,

I followed this guide, with a couple of adjustments, but I cannot get past the memory errors unless i use OsxAptioFix2Drv-64.efi and even then it only works half the time.

But then, most of the time, I get stuck with the following errors. Full photo is attached.

IMG_4315.JPG

"Warning: IOPlatformPluginUtil : getCPUIDInfo : this is an unknown cpu model 0x3f" and AppleTyMCEDDriver::start coreVIDPID .etc.

when it boots, it load the nvidia web drivers and the system is great, but it rarely boots all the way.

Please help, I am feeling desperate.
 

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Last edited:
Joined
Nov 8, 2011
Messages
117
Motherboard
Z390M-ITX/ac
CPU
i7-9700K
Graphics
Vega 64
I tried compiling my DSDT with iASL but had errors (19309, 6051, Address Min is greater than Address Max)

and fixed them like this, is it right?

Edit: for the DSDT errors I tried fixing them by changing this:
Code:
                WordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
                    0x0000,             // Granularity
                    0x4158,             // Range Minimum
                    0x0000,             // Range Maximum
                    0x0000,             // Translation Offset
                    0x0001,             // Length
                    ,, , TypeStatic)

to

Code:
                WordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
                    0x0000,             // Granularity
                    0x4158,             // Range Minimum
                    0x4159,             // Range Maximum
                    0x0000,             // Translation Offset
                    0x0002,             // Length
                    ,, , TypeStatic)
 
Joined
Nov 8, 2011
Messages
117
Motherboard
Z390M-ITX/ac
CPU
i7-9700K
Graphics
Vega 64
required nvda_drv=1 to force nvidia drivers to load
 
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