Any success with Ryzen 9800X3D and B850 chipset?

[Deep_Thought]

Hi guys,

 

I upgraded my old Haswell machine with a Ryzen 9800X3D on a B850 mainboard (MSI B850 Gaming plus WiFi) . I tried to make an installer with the OpenCore guide and the AMD Vanilla patches but to no success so far.

 

The funny thing is, I was able to boot into my old Monterey installation by just using the EFI from zoeid here: 

 

Alas, no hardware acceleration for my 6900 XT card yet and the Ethernet port is dead as well. The board has a Realtek 8126VB.5.Gbit/s LAN Controller and I read elsewhere that the 5GBit variant is not supported. Looks like I have to use Wifi or Ethernet via PCIe. The missing hardware acceleration for the 6900XT may be due to the chip being the XTXH variant which requires some additional patching. But I know how to do that and it should not be a problem.

 

So basically I am asking if someone had success using hardware that is more similar to mine than that of zoeid. In the meantime I will play around with the EFI and try to get everything to work.

[fabiosun]

hi @Deep_Thought 

your internal wifi and lan are not compatible with any osx

if you had XTXH GPU you have to spoof it in DP properties of your config.plist as example you can see this:

 

this is for unsupported 6950xt but it is pretty the same

as additional step you have also to check if your motherboard GPU slot needs or not of a SSDTBridge

if so you can use SSDTime script to build one for your motherboard

Edited August 25, 2025 by fabiosun

[Deep_Thought]

Hi fabiosun, thank you for your insight.

 

I managed to get hardware acceleration the same way I did with the old Haswell system. No problem there.

 

WiFi and Ethernet not working on principle is a real bummer. I have a cheap PCIe WiFi card lying around somewhere that might do the trick.

 

Unfortunately, sound is not working at all.

 

I am starting to think that another mainboard might have prevented these problems. Your hero seems to be quite nice, also judging from some of your postings over at amd-osx.com. But damn, it is three times as expensive as the MSI board. Argh! Well, I will meditate a bit on that one. In the meantime I try to get network up and running via PCIe and try to find a solution for the missing sound.

[fabiosun]

13 hours ago, Deep_Thought said:

Unfortunately, sound is not working at all.

Your motherboard has ALC 897 and it should work with applealc.kext and a proper layout id

[Deep_Thought]

Yeah, I figured as much when I realized that the mainboard uses a standard ALC897. Sound is working now.

 

I managed to find my old WiFi card. It is a cheap-ass TP-LINK TL-WDN4800 with an Atheros AR9380 chip. That thing is ancient, like, 15 years old or something. If I get it to work, all the basics of the Hack are covered. Lots of finetuning to do, though, as the EFI was not made for my system. I am getting occasional short system freezes, mouse jumps, and sound hiccups, so there is room for improvement. Still, it is totally awesome that I could go from Haswell to Ryzen und still use my installed macOS!

[carlo_67]

Atheros is not supported. I recommend getting a Zunate Dual Band PCIE WiFi Card, PCIE 7260AC PRO Bluetooth 4.0 1200 Mbps Desktop PCIE WiFi Card Adapter. Bluetooth WiFi  €16 on Amazon and works with itlwm.kex+Heliport and with IntelBluetoothFirmware.kext +IntelBTPatcher.kext +BlueToolFixup.kex. Depending on your OS, enable Bluetooth.

[carlo_67]

or get a m2 ax200 card and replace your wifi7

you won't have airdrop and handoff but it works fine with the kexts mentioned above

[Deep_Thought]

Meh, that sucks. Funny enough, my Debian did not recognize the Ethernet adapter either. But the old Atheros WiFi card worked flawlessly. Still, it is quite slow and a few € for a fast and macOS compatible card are a very good investment.

[Deep_Thought]

Alright, partial success. I bought an Intel 7260AC card. WiFi is working but extremely slow, less than 50KB/s. I tried it with a hotspot on my cellphone and got the full 6MB/s, so it is not a problem on the Mac side. Adjustment of the WiFi card antennas increased the data rate to somewhere around 1MB/s but it is varying wildly. Unfortunately, BlueTooth is not working yet.

 

On a slightly OT note: I got the Ethernet controller working on Linux. It was as simple as downloading the official Linux driver from the Realtek website and installing it. Bluetooth works on Linux anyway. 

 

So, I'm almost there. Just a little bit of tweaking to get BlueTooth up and running and some playing around with the antennas of the WiFi card to get the best data rate out of the connection. 

[Deep_Thought]

Either the 7260AC card does not have Bluetooth despite saying so on the box or I am too dumb to enable it under macOs, Linux or Windows. I tried several times but nothing worked.

 

Finally, I assumed there is no Bluetooth and plugged in my old USB Bluetooth adapter. No problem there, Bluetooth worked OOB on all three operating systems.

 

All the basics are covered now, well, with room for improvement on the WiFi data rate front. Now the real fun begins as I have to do some SSDT tuning. The current ACPI config is still the one from zoeid's EFI and was not made for my system. So, prepare for lots of tears in this thread in the future. 🙂 

[Deep_Thought]

I got lucky and got my hands on an old Fenvi FV-T919. WiFi and Bluetooth are working OOB and even Airdrop is working now. I never managed to connect my iPhone to my Hackintosh before. Besides, I could delete all the Kexts for injecting WiFi and Bluetooth as well as the Heliport app.