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

[telepati]

The boot log does show 1600x1200:

0:440  0:000  SetMaxResolution: found best mode 0: 1600x1200
0:478  0:037  Video mode change to mode #0: Success

Is this too high? Are you trying to switch to a lower resolution?

I think I got it why I am getting lower resolution on clover. My motherboard HDMI output supports 4K@30Hz. I think need 60Hz for the correct resolution.

Here is the question; is it possible to get 60Hz on boot also after booting with HDMI? I think people using an adapter for that. Is there an adapter that you can recommend?

 

[CaseySJ]

Hey @CaseySJ, i just wanted your opinion on using AMD's Navi 10 GPU's with this setup? Do you think a RX 5700 XT would be compatible? I've seen that there is now some support from Apple (in Catalina) for these GPU's.

Do you see the PowerColor RX 5700 XT in my signature?

With WhateverGreen 1.3.6 we seem to be having fairly good success with the Navi/RDNA GPUs. The Catalina Mini-Guide is compatible with RX 5700-series.

 

[CaseySJ]

I think I got it why I am getting lower resolution on clover. My motherboard HDMI output supports 4K@30Hz. I think need 60Hz for the correct resolution.

Here is the question; is it possible to get 60Hz on boot also after booting with HDMI? I think people using an adapter for that. Is there an adapter that you can recommend?

The refresh rate (30Hz versus 60Hz) does not matter (well, it should not matter)! 4K at 30Hz has the same resolution as 4K at 60Hz. The HDMI port on Designare Z390 only goes up to HDMI 1.4, which means it's limited to 4K 30Hz.

In an earlier post you mentioned that you are only temporarily using the IGPU. If that is true -- and if you expect to use an AMD discrete GPU soon -- then it's probably not necessary to worry about Clover resolution with IGPU.

 

[Lensjocky]

Now that you have an updated working EFI on Clover 5xxx, you should update your (rescue) USB boot stick, you do have one don't you???

Run the Clover installer again but this time change the location to the USB stick. This time uncheck the UEFI check box and also untick the RC Scripts check box. When it has finished copy your working EFI folder to the USB UEFI partition EFI folder. Test it by booting from the USB stick.

I have a bootable clone on SSD. It's backed up and updated I assure you. (having learned the hard way some time ago..)

 

[pitt1717]

It looks like you and are are pretty close to the same place in our OC experiment.
You need to have Emulated nvram set up with the LogoutHook command.

I am pretty sure I have LogoutHook running, and it seems to be writing to nvram.plist. however, the variables are not being read back on in reboot. Im not sure why that is.

I read through the OpenCore document. It sounds like we need to remove the RC scripts before the NVRAM will work. I'm tempted to try tonight but its been a crazy day at work. I may see how I feel after dinner.

From the Doc Online.

Last edited: January 13, 2020

So this section is for those who don't have native NVRAM, the most common hardware to have incompatible native NVRAM with macOS are the non-Z370 300 series chipsets:

• B360
• B365
• H310
• H370
• Q370
• Z390
• Some X99 and X299 (verify if you have working NVRAM below)

Cleaning out the Clover gunk

So some may not have noticed but Clover may have installed RC scripts into macOS for proper NVRAM emulation. This is an issue as it conflicts with OpenCore's method of emulation.

Files to delete:

• /Volumes/EFI/EFI/CLOVER/drivers64UEFI/EmuVariableUefi-64.efi
• /Volumes/EFI/nvram.plist
• /etc/rc.clover.lib
• /etc/rc.boot.d/10.save_and_rotate_boot_log.local
• /etc/rc.boot.d/20.mount_ESP.local
• /etc/rc.boot.d/70.disable_sleep_proxy_client.local.disabled
• /etc/rc.shutdown.d/80.save_nvram_plist.local

If folders are empty then delete them as well:

• /etc/rc.boot.d
• /etc/rc.shutdown.d

 

[Jamz0161]

Do you see the PowerColor RX 5700 XT in my signature?

With WhateverGreen 1.3.6 we seem to be having fairly good success with the Navi/RDNA GPUs. The Catalina Mini-Guide is compatible with RX 5700-series.

Ahh okay, my mistake. Would you say the RX 5700-series are some of the best card's for this setup?

 

[CaseySJ]

Ahh okay, my mistake. Would you say the RX 5700-series are some of the best card's for this setup?

For video editing, the Radeon VII tends to be faster, but it has been discontinued. Among the AMD GPUs on the market today, the RX 5700-series are the fastest. A rumored RX 5750 XT might be coming out soon at a higher price point.

I'm sure you know that the fastest GPU is not always the most appropriate GPU. There is no reason to spend lots of money on a GPU if it will not be used for GPU-intensive work.

My only reason for purchasing the RX 5700 XT was to modify the Catalina build guide to work with that card and to be able to support users who might be facing problems with that card. Things we do for the community!!

So we should choose a graphics card that is suitable or good enough for the kind of work we do on the computer.

 

[Jamz0161]

For video editing, the Radeon VII tends to be faster, but it has been discontinued. Among the AMD GPUs on the market today, the RX 5700-series are the fastest. A rumored RX 5750 XT might be coming out soon at a higher price point.

I'm sure you know that the fastest GPU is not always the most appropriate GPU. There is no reason to spend lots of money on a GPU if it will not be used for GPU-intensive work.

My only reason for purchasing the RX 5700 XT was to modify the Catalina build guide to work with that card and to be able to support users who might be facing problems with that card. Things we do for the community!!

So we should choose a graphics card that is suitable or good enough for the kind of work we do on the computer.

Thank you for the information. I plan on creating a dual boot (Mac OS and Windows) build for music production and gaming and i was considering the Radeon VII. I feel a 5700-series card would suffice but yes, as you say theres no reason to go over board in regards to GPU. Heres what i have on my shopping list at the moment;

• Gigabyte Designare Z390
• i9-9900K
• RX 5700 XT (undecided)
• 2 x 512GB Samsung 970 Pro M.2 (Mac and Win boot drives)
• G.Skill TridentZ 32GB RGB Memory

Already owned (from a hack built in 2015);

• H60 CPU cooler (likely need to get a new cooler?)
• Corsair AX 760 power supply
• Samsung 850 pro 512gb
• WD black 3tb
• LG blu ray drive
• Fractal Design R4 case

 

[yapiyapo]

I did it!! The problem its one of the USB dock. I tried a disk speed test, and in one of dock the speed is 80 Mb/s and in the other dock only 10Mb/s. After seconds in this dock, the HDD froze.

Well, thanks for your patience!!

@CaseySJI'm going crazy! A friend has left me a dock to check. It works transfer data and the same problem! System eject HDD or freeze Finder. I don't understand. I tested in a MacBook 2015 and works perfectly. I think more faster. Maybe its my EFI folder don't work correctly??

I am running Mojave 10.14.6 (18G1012).

 

[manfriday]

I read through the OpenCore document. It sounds like we need to remove the RC scripts before the NVRAM will work.

Yeah I did all that, but it still didn't work.
I'm grinding away at it again tonight. If I come up with something, I will let you know.