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Opencore configuration to run OS X Sonoma on a (i5) ThinkCentre M700 Skylake SFF PC.{under construction}. Some information is in the Wiki.

• Lenovo ThinkCentre M700 model 10HY002WMG
• I5-6400t 1.2G (Skylake) with 8Gb RAM
• Intel® HD Graphics 530
• BIOS version 7/2022FWKTBFA
• Has locked MSR2 (CFG Lock var offset = 0x197, and must beunlocked); you can use the localWiki for guidance
• boot disk is a LiteOn m2.SATA (attached to the m2 slot, which does not accept NVME drives)
• Intel wifi (with bluetooth)
• Display connected to the DP connector closest to the power supply (con2?)

• enable CSM in BIOS, as per theWiki; now is the time to turn CFG Lock off, and enable XCHI (again, check the Wiki)
• download the EFI.zip, expand it and update your serial number with GenSMBIOS (for an iMac19,1), as perDortania
• note that the Files section above includes only a subset, for review purposes. Don't copy it to the EFI partition, instead use the expanded EFI.zip
• should be bootable (OC 0.9.5 and up-to-date kexts)
• note: HibernationFixup and Lilu are debug versions
• the individual non-compressed folders are provided for guidance (of particular significance is config.plist, which lists the DeviceProperties and NVRAM boot args, along withMisc:Boot:Hibernation setup)

This is a sweet little machine, took me a while to run Sonoma and then stumbled on the infamous wake-from-sleep issue with its HD 530 iGPU. No way I would accept a non-sleeping computer, so took it upon myself to solve the problem - essentially trying laptop-specific advice from OSXLatitude and insanelymac forum users. Seems it's working (fingers crossed).

• WOL works, with the included Mausi driver (v1.0.8)
• use power button to wake (appears as PWRBT wake in pmset logs)
• the USB ports were initially mapped withCorpNewt's scripts under an iMac19,1 SMBIOS
• however, the final map(*) was obtained by booting Windows 10 and then runningUSBToolBox/tool; of note it detected the Intel Bluetooth adapter and assigned it to an "internal" port, but not really identifying it
• Hackintool reports iGPU as "???", and I don't know the significance of this; it works fine
• Bluetooth is reported as present, but haven't bothered to check if it works or not (probably won't be reliable); the IntelBT injectors are disabled in the config.plist, but BlueToolFixup is required (otherwise you get an annoying dialog at startup)
• these are the current boot arguments(*)

  boot-argsalcid=21 igfxagdc=0  revpatch=sbvmm forceRenderStandby=0 igfxonln=1 keepsyms=1 -amfipassbeta swd_panic=1 hbfx-ahbm=1 darkwake=0 -noDC9  -liludbgall -hbfxdbg -btlfxallowanyaddr

• the SSDT-USBW.aml is created as perDortania but unused; same for the stock Dortania SSDT-USBX.aml
• final important note: AppleALC is disabled (must use a USB sound adapter)(*)

Solving the display wake issue required a lot of Voodoo; the items marked with an asterisk probably played a major role, and I just don't have the resources to figure out which exactly is critical or not. I plan to gradually introduce them and see (AppleALC.kext in particular).

Disclaimer: it should be considered as a work-in-progress. I've had 10+ successful sleep/wake cycles over many days, but the occasional hard freeze on wake :-(

• Setup pmset asfollows:

sudo pmset restoredefaultssudo pmset -a hibernatemode 25sudo pmset -a standby 1sudo pmset -a powernap 0sudo pmset -a sleep 1sudo pmset -a standbydelaylow 610sudo pmset -a standbydelayhigh 610System-wide power settings:Currently in use: standby              1 Sleep On Power Button 1 womp                 0 autorestart          0 hibernatefile        /var/vm/sleepimage proximitywake        0 powernap             0 networkoversleep     0 disksleep            10 standbydelayhigh     610 sleep                1 hibernatemode        25 ttyskeepawake        1 displaysleep         10 tcpkeepalive         1 highstandbythreshold 50 standbydelaylow      610

• disable RTC wakes; This has been described very eloquently byJayMonkey, and involves some steps to create a new powerd.plist.

Does it work? Well, I'll leave it on for as long as possible and report back (currently December 9, 2023). So far so good!

25-Dec-23 update: new setup, slightly changed from above, has slept and awakened (using the power button) n=10 times in the past few days. Stay posted for an updated EFI folder in a week or two. In the meantime, you can recreate the EFI using "config.plist" for guidance.

See Disclaimer, just above.

With greetings from Athens,

Xen

Here's a small collection of commands to view the debug logs, gathered from the internet:

pmset -g log | egrep "\b(Sleep|Wake|DarkWake|Start)\s{2,}"sudo dmesg | grep HBFXlog show --predicate 'process == "kernel"' --style syslog --source --debug --last bootsudo log show --predicate 'process == "kernel"' --style syslog --source --debug | grep hibern

• the usual (Apple, the Dortania / Opencore team, myriads of individual users)
• Acidanthera deserves a standing ovation!
• insanelymac
• osxlatitude forums
• deeveedee's posts on insanelymac; in a class by themselves
• Dortania on how to unlock CFG:https://dortania.github.io/OpenCore-Post-Install/misc/msr-lock.html#turning-off-cfg-lock-manually
• this post applies to the HD 630, but was used as a template for the HD 530 on the ThinkCentre; genious approach! (https://www.insanelymac.com/forum/topic/355419-90-solved-hibernatemode-25-successfully-working-on-intel-hd-630-igpu-but-glitch-issues-on-first-wake-screen/)https://www.insanelymac.com/forum/topic/355419-90-solved-hibernatemode-25-successfully-working-on-intel-hd-630-igpu-but-glitch-issues-on-first-wake-screen/
• https://github.com/lshbluesky/OC-GA-B250M-DS3H-Hackintosh (same author as the above insanelymac post)
• https://github.com/jkbuha/XPS-9500-IceLake-OpenCore
• https://github.com/jkbuha/XPS-9500-IceLake-OpenCore/commit/705f534991a6458cc23eaea02799413531471470
• acidanthera/bugtracker#1810 (picked up the optimal standbydelaylow/high settings)