iMac Pro X299 - Live the Future now with macOS 10.14 Mojave [Successful Build/Extended Guide]

[zzmadd]

Before any motherboard suggestion, let's talk first about the elephant in the room ( two actually ). Below is summing formula.
OSX Mojave + ( 2 x GTX 1080 Ti*) =
Clear enough?

GPUs Vega 64, 56 or against @kgp recommendation, Sapphire RX580 OC ( Oops I wrote a bad word ) are highly recommended.

I wrote on this thread because it's probably more active, but the plan is to stay in High Sierra.

 

[kgp]

For sure but if the ASUS X299 Sage WS 10GB was not so expensive for now...It's just a time consideration because time is money (If "French humour" is allowed )

But up to my current knowledge it is the only X299 motherboard that works absolutely flawless with the GC-Titan Ridge, always provided that one also employs SSDT-X299-TB3HP.aml in addition.

 

[kgp]

I wrote on this thread because it's probably more active, but the plan is to stay in High Sierra.

Not even under High Sierra I would go for a Nvidia GPU at present, and less for two..

Your choice..

 

[zzmadd]

The most important issue of your proposal already has been answered by @Ellybz...

With respect to TB, I would go for the ASUS X299 Sage WS 10GB + GC-Titan Ridge.

Good luck,

KGP

thanks for your reply.
Are the 2 x Ethernet Intel X550-AT2 supported by some SmallTree driver?

 

[kgp]

thanks for your reply.
Are the 2 x Ethernet Intel X550-AT2 supported by some SmallTree driver?

You have to patch the Intel X550-AT2 chip as outlined in my guide though.. then it will work with the SmallTree driver.

sudo ethtool -E enp225s0f0 magic 0x15638086 offset 0x242 value 0x0a
sudo ethtool -E enp225s0f0 magic 0x15638086 offset 0x243 value 0x00
sudo ethtool -E enp225s0f1 magic 0x15638086 offset 0x242 value 0x0a
sudo ethtool -E enp225s0f1 magic 0x15638086 offset 0x243 value 0x00

 

[Loloflatsix]

Another strange issue with the 970 EVO I did never faced before with SSD under Windows is the display of a black screen with my monitor 4k connected to TB EX3 after waking up.... And no such issue on with the WD SN750 why I don't know...

One last point: I'll have to do a speleology session to install the second NVMe : disconnect the two GPUs, disassemble the lower extension of the PCH coverage before installing it ... not easy ...

 

[Loloflatsix]

I did a speed test under CrystalDiskMark 6.0.2:

 

[kgp]

I did a speed test under CrystalDiskMark 6.0.2:
View attachment 384969

You should use Blackmagic to directly compare with my EVO 970 Pro. Anyway write speed of 1600 vs 2500 roughly.

 

[djlild7hina]

You have to patch the Intel X550-AT2 chip as outlined in my guide though.. then it will work with the SmallTree driver.

sudo ethtool -E enp225s0f0 magic 0x15638086 offset 0x242 value 0x0a
sudo ethtool -E enp225s0f0 magic 0x15638086 offset 0x243 value 0x00
sudo ethtool -E enp225s0f1 magic 0x15638086 offset 0x242 value 0x0a
sudo ethtool -E enp225s0f1 magic 0x15638086 offset 0x243 value 0x00

Yep both ports are recognized on my board. I would think the non 10G Sage would also work well with the Titan Ridge but don’t have that board anymore to test.

 

[djlild7hina]

sorry ignore this accidentally posted instead of edited previous post.