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pastrychef's Asus ROG Strix Z370-G Gaming (WI-FI AC) build w/ i9-9900K + AMD 6600 XT

No, either disable inject Intel nor disable the Intel GPU in the BIOS solved the "stabiliser" problem.
 
No, either disable inject Intel nor disable the Intel GPU in the BIOS solved the "stabiliser" problem.

Hmm... I'm out of ideas. Try posting in the Graphics sub-forum to see if anyone else can help. I'll continue to search as well.
 
Allright, thank you !!
I'm using a similar configuration and i use fcpx all day long. No issue at all. I had random freezes before and in the previous machine, but it was all caused by gpu and incorrect kexts/configurations. If u read my previous posts, pastrychef gave me some advices and know i don't have any problems at all.
 
Yes, I use AptioMemoryFix which has been working very well for me.

I have IGPU enabled but have never connected a monitor to it. It is enabled so that features such as AirPlay, Quick Sync, etc. work.

WhateverGreen should help with your 2 monitor setup with iMac18,3.

The version of FakeSMC in my EFI folders should be the latest. You can also check here.
So far so good.
I never had any crashes after fixing the system. Now i can work all day long without any problem. Sometimes photoshop has some ghosting with the cursor, but it's fine for me. I also lost audio after sleep, but i don't use the sleep at all so it's good for me.

Thanks for the recipe chef.
I owe you one shot :cool:
 
I don't have any true USB 3.1 gen 2 devices, but I have tested USB 3.1 gen 1 devices with the USB 3.1 gen 2 ports. There's a clear and noticeable improvement when using the gen 2 ports. You can see my test results here.

View attachment 333481


Edit:
As far as I know, all Z370 motherboard use ASM3142 chipset for USB 3.1 gen 2. macOS has built-in support for this chipset so nothing extra needs to be done to get them working. Also, since USB 3.1 gen 2 is on an entirely separate chipset, SSDT for USBInjectAll.kext does not affect it.

Thanks. The Maximus X Hero is actually using a different chip for USB 3.1, the ASM2142 chip.

Anyhow, throughout all this frustration I found out the cable was bad which caused the USB2 speeds...
Fixed that, and now the SSD shows up at USB 3.0 speeds (5gb/sec) and running the disk speed test I get around 500 mb/sec read and write. Interestingly, plugging the same drive into a genuine 2017 MBP, it identifies as a USB 3.1 gen 2 device at 10gb/sec. The fun continues...
 
Thanks. The Maximus X Hero is actually using a different chip for USB 3.1, the ASM2142 chip.

Anyhow, throughout all this frustration I found out the cable was bad which caused the USB2 speeds...
Fixed that, and now the SSD shows up at USB 3.0 speeds (5gb/sec) and running the disk speed test I get around 500 mb/sec read and write. Interestingly, plugging the same drive into a genuine 2017 MBP, it identifies as a USB 3.1 gen 2 device at 10gb/sec. The fun continues...

The ASM2142 and ASM1142 should also have native support in macOS.

I would not worry too much about System Information reporting that it's running at 5GB/s. Apparently System Information incorrectly reports this information.
Screen Shot 2018-05-31 at 4.21.53 PM.png
Source: http://www.sonnettech.com/product/allegro-usbc-pcie.html

If you are pushing 500MB/s, I suspect you are getting USB 3.1 gen 2 levels of performance. In the following article, they only managed approx 400MB/s on USB 3.1 gen 1.
https://www.everythingusb.com/speed.html
 
The ASM2142 and ASM1142 should also have native support in macOS.

I would not worry too much about System Information reporting that it's running at 5GB/s. Apparently System Information incorrectly reports this information.
View attachment 333710
Source: http://www.sonnettech.com/product/allegro-usbc-pcie.html

If you are pushing 500MB/s, I suspect you are getting USB 3.1 gen 2 levels of performance. In the following article, they only managed approx 400MB/s on USB 3.1 gen 1.
https://www.everythingusb.com/speed.html

That's what I was thinking, but was waiting to re-run the same test on the MBP. There's an interesting long read in the comments section on Piker's old site regarding incorrect USB 3.1 reported speeds that somewhat tapers off without a resolution. Here's a link. https://pikeralpha.wordpress.com/2016/11/10/two-port-usb-3-1-gen-ii-pci-express-card/
 
That's what I was thinking, but was waiting to re-run the same test on the MBP. There's an interesting long read in the comments section on Piker's old site regarding incorrect USB 3.1 reported speeds that somewhat tapers off without a resolution. Here's a link. https://pikeralpha.wordpress.com/2016/11/10/two-port-usb-3-1-gen-ii-pci-express-card/

I didn't see anything regarding speeds tapering off... I just saw that Pike found the cause of the incorrect 5MB/s reporting. Unfortunately, disaster befell him and his family and he's no longer part of the community. Best wishes to him and his family.
 
I didn't see anything regarding speeds tapering off... I just saw that Pike found the cause of the incorrect 5MB/s reporting. Unfortunately, disaster befell him and his family and he's no longer part of the community. Best wishes to him and his family.

Yes, sad story.. I meant the discussion tapered off.
 
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