How to build your own iMac Pro [Successful Build/Extended Guide]

[kgp]

They delayed it a few times.

It’s funny because they’ve been providing Apple with 5K panels for years, and they can’t even make one for themselves. (Except the Ultrafine 5K)

Here in Germany the expected availability in nearly all online stores seems to be "in approx. 3 weeks"..

@izo1, I guess that's the perfect display covering all your needs.

TB 3 and DisplayPort 1.4 hopefully will prevent all possible incompatibilities with your Vega.

The native 5K2K screen resolution moreover perfectly suites your Adobe software requirements.

I am tempted to sell my LG 38UC99-W and to also opt for the LG 34WK95U-W.

The 38 inch version of the latter display, I was dreaming of, likely will not be announced before Q3/Q4 2019.

 

[izo1]

Here in Germany the expected availability in nearly all online stores seems to be "in approx. 3 weeks"..

@izo1, I guess that's the perfect display covering all your needs.

TB 3 and DisplayPort 1.4 hopefully will prevent all possible incompatibilities with your Vega.

The native 5K2K screen resolution moreover perfectly suites your Adobe software requirements.

I am tempted to sell my LG 38UC99-W and to also opt for the LG 34WK95U-W.

The 38 inch version of the latter display, I was dreaming of, likely will not be announced before Q3/Q4 2019.

I just ordered a 2nd 38CB99-W 38" (which is the same as 38UC99-W just with longer warranty)...so my desk will now look like a spaceship

Total cost: $1500 for both

I really can't justify $1500 for the 5k version that's not even out yet here in USA. Two of those will net $3000. Not even Apple displays were that expensive, and I am hoping Apple does displays next year and maybe I can buy 2 of them and sell these

 

[perfecto245]

i9-7920X ACPI Replacements linked in the guide, my friend

Thank You KGP!

My system seems more stable now! haven't had a crash or lockup since. was there a change to the usb drivers by chance? one of my drives don't seem to read on the usb 3 ports? I can remember if this was previously present in my setup..

All set for Mojave?

 

[kgp]

Thank You KGP!

My system seems more stable now! haven't had a crash or lockup since. was there a change to the usb drivers by chance? one of my drives don't seem to read on the usb 3 ports? I can remember if this was previously present in my setup..

All set for Mojave?

No change to USB drivers..

Yea, all set for Mojave.. just to perform a last boring vanilla macOS system update via the Appstore once the final version has been released ..

BTW.. I expect 10.14 GM to be distributed by beginning of next week..

 

[edohikmah]

anyone here have success install using Asus Apex X299 ?

 

[perfecto245]

No change to USB drivers..

Yea, all set for Mojave.. just to perform a last boring vanilla macOS system update via the Appstore once the final version has been released ..

BTW.. I expect 10.14 GM to be distributed by beginning of next week..

Thats Awesome! I wonder If my current setup is going to be compatible, I worry about the 1050Ti ..

 

[kgp]

Thats Awesome! I wonder If my current setup is going to be compatible, I worry about the 1050Ti ..

Any Nvidia Pascal or Maxwell GPU user will depend on the availability of a Mojave web driver. Until the latter has been finally released, Mojave will be useless for the entire Nvidia Pascal or Maxwell community.

 

[izo1]

So set up the 38" LG and the Apple logo isn't stretched (CSM is disabled). Neither is Clover menu (but background won't fill in though even if set to 3840x1600 in config.plist). @kgp

BIOS screen is not stretched either.

But yes definitely the Apple logo doesn't look "retina" to me like it did with a 2560x1440 display...

Otherwise, it's great and I see HiDPI options in Display settings...but no 75Hz setting. No issues with DisplayPort. I have "DisplayPort 1.2" enabled in the menu.

Waiting on the 2nd one....but I think one of these monitors and a 27" 4k LG monitor would suffice.

 

[kgp]

So set up the 38" LG and the Apple logo isn't stretched (CSM is disabled). Neither is Clover menu (but background won't fill in though even if set to 3840x1600 in config.plist). @kgp

BIOS screen is not stretched either.

But yes definitely the Apple logo doesn't look "retina" to me like it did with a 2560x1440 display...

Otherwise, it's great and I see HiDPI options in Display settings...but no 75Hz setting. No issues with DisplayPort. I have "DisplayPort 1.2" enabled in the menu.

Waiting on the 2nd one....but I think one of these monitors and a 27" 4k LG monitor would suffice.

Nice to know..

Although.. note that, if I properly remember, you use a slightly different model when compared with mine (38UC99-W)..

Also I was never referring to the Apple Logo during boot, as I usually boot my MacOS System in verbose mode (thus I rather referred to the stretched boot messages). But in fact I was also referring to my stretched iMac Pro ASUS Splash Screen logo right before system boot, which I manually implemented in the BIOS firmware.

If boot messages etc. are stretched or not mainly depends on the following monitor setting:

/Input/Aspect Ratio/:

Full Wide (all stretched),

Original (not stretched), but ASUS Splash Screen, verbose boot messages and BIOS screen are not full screen but restricted to the actual size of the automatically applied boot screen resolution, which is definitely non 3840x1600.

Enabling "DisplayPort 1.2 Compatibitly" in the onscreen monitor settings, would allow you to drive your display at 75 Hz via Display port under macOS without any further restrictions. The "Free Sync" option must be disabled though, as otherwise your display would not be recognised at system boot.

 

[izo1]

Nice to know..

Although.. note that, if I properly remember, you use a slightly different model when compared with mine (38UC99-W)..

Also I was never referring to the Apple Logo during boot, as I usually boot my MacOS System in verbose mode (thus I rather referred to the stretched boot messages). But in fact I was also referring to my stretched iMac Pro ASUS Splash Screen logo right before system boot, which I manually implemented in the BIOS firmware.

If boot messages etc. are stretched or not mainly depends on the following monitor setting:

/Input/Aspect Ratio/:

Full Wide (all stretched),

Original (not stretched), but ASUS Splash Screen, verbose boot messages and BIOS screen are not full screen but restricted to the actual size of the automatically applied boot screen resolution, which is definitely non 3840x1600.

Enabling "DisplayPort 1.2 Compatibitly" in the onscreen monitor settings, would allow you to drive your display at 75 Hz via Display port under macOS without any further restrictions. The "Free Sync" option must be disabled though, as otherwise your display would not be recognised at system boot.

Yeah I usually disable -v unless I'm troubleshooting.

Anyway, I'm sure you're aware of these, just putting it here in case anyone else is interested.

So DisplayPort 1.2 enabled = 60Hz
Displayport 1.2 Disabled = 30Hz
There is no FreeSync option in the monitor menu nor in SysPref > Displays. Probably have to use SwitchResX, but not a fan of 3rd party apps like that for simple things.

38CB99-W (which is the "business" version, it's the same as 38UC99-W except with 3 year warranty instead of 1).

With "Full Wide" as you said everything is stretched.
With "Original" everything seems like the correct aspect ratio (at least)...except the Clover background size for some reason. I manually modified the bg.png to 3840x1600 and still same issue. config.plist is 3840x1600 as well. At least with "Original" they're not stretched which is better than nothing aesthetically

See attached for video demonstrations if interested.

By the way have you gotten brightness control to work with this monitor?
Also I assume you're using Bluetooth on the display to control via macOS volume since DisplayPort audio is "locked" to the monitor.