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MSI Z87 UEFITOOL PATCH
MSI Z87 UEFITOOL SERIES
MSI Z87 UEFITOOL WINDOWS

Use a tool called ControlMsrE2 which will speed up the whole checking processįor users who prefer using DEBUG release, you'll want to enable the DEBUG variant of OpenCore with Target set to 67 and boot OpenCore.

Use the DEBUG version of OpenCore and check what the log says about CFG Lock.

To check it, you can proceed into two ways: Note: Penyrn based machines actually don't need to worry about unlocking this register # Checking if your firmware supports CFG Lock unlockingīefore proceeding with the rest of this guide, you'll first need to check if your firmware supports CFG Lock unlocking.

Very much preferred, as avoids patching allowing for greater flexibility regarding stability and OS upgrades.

MSI Z87 UEFITOOL PATCH

Patch our firmware to support MSR E2 write AppleCpuPmCfgLock for AppleIntelPowerManagement.kext.This creates instability and unnecessary patching for many.Instead both the Kernel (XNU) and AppleIntelPowerManagement want this register. And why we care about it is that macOS actually wants to write to this variable, and not just one part of macOS. By default, most motherboards lock this variable with many even hiding the option outright in the GUI. AMD users don't have any type of CFG LockĬFG-Lock is a setting in your BIOS that allows for a specific register(in this case the MSR 0圎2) to be written to.

Note that this guide is only applicable for Intel users.

This guide is only recommended for users who have already installed macOS, for users who are installing for the first time enable AppleCpuPmCfgLock and AppleXcpmCfgLock under Kernel -> Quirks

Checking if your firmware supports CFG Lock unlocking.

It worked, so I retraced my steps and wrote it up hoping it might help somebody else. This guide is only directly applicable to the Z77 MSI MPower with an ADATA SX8200 but may be applicable to other boards. You need to be much more cautious if your motherboard does not have dual BIOS, since you could brick your motherboard by flashing modified firmware. There are alternatives to BIOS modding such as using the NVME drive as a secondary drive, or by using a bootloader like GRUB on a SATA or USB device to boot from the NVME drive indirectly. You have safer but less convenient options, and thus have been warned.

MSI Z87 UEFITOOL WINDOWS

You may have to use UEFI booting for everything that boots from the NVME, but I’m not sure.Īfter performing the modifications described below, I switched the MPower back to the latest (unmodified) BIOS from MSI and found the NVME drive disappeared from my boot list while my SATA-based windows UEFI installs showed up. Due to this, I needed to modify the MPower BIOS to get it to boot from NVME, as expected. I’ve heard rumours that some Samsung NVME drives will boot on unsupported motherboards using AHCI as a fallback, but have not verified this, or whether my ADATA SX8200 has a similar compatibility feature. Regardless, it was necessary to modify the BIOS to get it bootable on my MPower. If it’s an M.2 drive and your motherboard doesn’t have an M.2 slot, buy an M.2 to PCIE adapter like this: You need to connect the NVME SSD to the motherboard.

This adapter has a second slot for SATA-based M.2 SSDs and a corresponding SATA data port. What matters is that it’s a PCIE-x4 slot which won’t bottleneck my PCIE 3.0-x4 SX8200.

MSI Z87 UEFITOOL SERIES

UEFI Firmware files are structured in a series of modules and other files.