[SUCCESS] Gigabyte Designare Z390 (Thunderbolt 3) + i7-9700K + AMD RX 580

[CaseySJ]

On my z490 box, I’m using 32 GB of Corsair vengeance rgb memory @ 3200 MHz. 8 GB DIMMs.

What is the part number? I'd like to add it to Experiment Update #3.

 

[CaseySJ]

It hasn't worked for me. Do I need to change the SSDT? I haven't used a lite/skinny one.

Asus X299 Prime Deluxe II
i9-7900X
4x16GB 3000Mhz DIMM
OSX 10.13.6
TB3 Titan Ridge (built-in) original FW 36
ANTELOPE DISCRETE 8

VT-d -> Enabled
DisableIOMapper (never was on)
Removed 'dart=0'

In your Clover config.plist, please try deleting DMAR as shown below (i.e. remove that line), then reboot (VT-d must be enabled in BIOS). Does AppleVTD now appear in IOReg?

 

[jjsenecal]

Thanks for the quick turnaround. Looks like 2666MHz alone may not be the answer.

I’m going to manually set 2666MHz when I get home. As noted previously, with XMP off memory defaults to 2667MHz.

 

[jiffyslot]

Have you already enabled VT-d on your Z370? If so, what side effects are you experiencing?

By the way, if you remove the DIMMs from memory slots A1 and B1 on the Z390 Designare, VT-d leaving only A2 and B2 populated with 16GB DIMMs, does WiFi and Ethernet still work?

Vt-d is enabled on the Z370, but the Z370 fails to load the OS on any version of OC higher than 060. See build #2 in my signature also seen here: https://www.tonymacx86.com/threads/...7-8700k-rx-580-2x-dell-p2715q-4k-60hz.252989/

I haven't removed any RAM from the CaseySJ Z390 build because the Ethernet never failed to connect.

 

[CaseySJ]

Vt-d is enabled on the Z370, but the Z370 fails to load the OS on any version of OC higher than 060. ...

This can happen if some of the Kexts and/or Drivers were not properly updated along with OpenCore itself. If you like, you may compress and post your OC 0.6.0 and the newer OpenCore EFI folder (with serial numbers removed from PlatformInfo).

• Is MSR 0xE2 (CFG-Lock) disabled on the Z370?
• The screenshot indicates that SecureBootModel may be set incorrectly (try Disabled or Default).

 

[CODYQX4]

Things I've done in order, without results.

1. Fully enable VT-d (in my case, just needed to set DisableIoMapper=false)
2. Load SSDT-DMAC.aml
3. Load SSDT-SMBUS-MCHC.aml
4. Try SSDT-MCHC.aml instead because like always, SMBUS activation breaks sleep for me
5. Move from the first and third RAM slot to the second and fourth.
6. Remove Fenvi card
7. Remove Aquantia card
8. Disable XMP, dropping me from 3200 to 2666
9. Loading OpenIntelWireless drivers for Wi-Fi and Bluetooth
10. Turning XMP back on

I don't know if anyone else answered this when @CaseySJ asked, but Intel Wi-Fi dues not work for me with VT-d enabled.

 

[CaseySJ]

Things I've done in order, without results.

1. Fully enable VT-d (in my case, just needed to set DisableIoMapper=false)
2. Load SSDT-DMAC.aml
3. Load SSDT-SMBUS-MCHC.aml
4. Try SSDT-MCHC.aml instead because like always, SMBUS activation breaks sleep for me
5. Move from the first and third RAM slot to the second and fourth.
6. Remove Fenvi card
7. Remove Aquantia card
8. Disable XMP, dropping me from 3200 to 2666
9. Loading OpenIntelWireless drivers for Wi-Fi and Bluetooth
10. Turning XMP back on

I don't know if anyone else answered this when @CaseySJ asked, but Intel Wi-Fi dues not work for me with VT-d enabled.

Please remind us:

• How many DIMMs?
• Capacity of DIMMs?
• Brand name (Corsair, G.Skill, Crucial, Patriot, etc.)

 

[qthegaijin]

Vt-d is enabled on the Z370, but the Z370 fails to load the OS on any version of OC higher than 060. See build #2 in my signature also seen here: https://www.tonymacx86.com/threads/...7-8700k-rx-580-2x-dell-p2715q-4k-60hz.252989/

I haven't removed any RAM from the CaseySJ Z390 build because the Ethernet never failed to connect.

Add in your config.plist into Misc-Security string key named SecureBootModel with value Disabled

 

[brousseau6933]

Correct. Clover does not work — at least I haven’t found a way. By now we should all be switching to OpenCore.

You surely mean Antelope and Big Sur? Running fine with Clover and Presonus here. No need for TB to Ethernet neither for me… Or did I missed something?

 

[CODYQX4]

Please remind us:

• How many DIMMs?
• Capacity of DIMMs?
• Brand name (Corsair, G.Skill, Crucial, Patriot, etc.)

G.Skill Ripjaws V 128GB (4x32GB) DDR4-3200. I'm using 2 DIMMs, the other 2 have been in my z590 since I built it, but it was sold as a 4x32GB kit.