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Clover for OptiPlex 7040 with Skylake CPU & GPU
Only fix the Graphics by modify UEFI variables, Ethernet, USB, and sound card with AppleALC, but, is enough! Less is more.
Test with OptiPlex 7040 which using i7-6700, Intel HD Graphics 530, Intel I219LM2 Ethernet, macOS 10.14.5
In order to run macOS successfully a number of EFI BIOS variables need to be modified. The included Clover bootloader contains an updated DVMT.efi
, which includes a setup_var
command to help do just that.
DVMT.efi
can be launched from Clover directly by renaming it to Shell64U.efi
in the tools
folder.
The following variables need to be updated:
Variable | Offset | Default value | Desired value | Comment |
---|---|---|---|---|
CFG Lock | 0xAF | 0x01 (Enabled) | 0x00 (Disabled) | Disable CFG Lock to prevent MSR 0x02 errors on boot |
DVMT Pre-allocation | 0x350 | 0x01 (32M) | 0x04 (128M) | Increase DVMT pre-allocated size to 128M for 2K+ displays |
Clover boot menu
, select Start UEFI shell 64
and enter.
I has replace Shell64U.efi
with DVMT.efi
, so you are running DVMT.efi
in fact.
setup_var 0x350 0x4
using this cmd line 中文教程Yes. It way enabled by “config.plist/RtVariables/CsrActiveConfig=0x11”.
Maybe you need to disable SIP before doing upgrade: Set “config.plist/RtVariables/CsrActiveConfig=0x67”.