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new LG Ultrafine 24" 4K eGPU options with 2018 Mac Mini
 

new LG Ultrafine 24" 4K eGPU options with 2018 Mac Mini  

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LiE
 LiE
(@lie)
Active Member
Joined: 1 month ago
 

First post here, so hello!

I've currently got the new 24" LG Ultrafine monitor connect to my 2018 Mac Mini. I want to play some games on MacOS but the GPU is very weak in the MM.

I'm looking at the feasibility of adding an eGPU, but need some guidance. Does anyone know if I can grab something like a Vega 64 to add to a Razer Core enclosure, then connect the GPU to the monitor using the Moshi USB-C to DisplayPort? I think the new LG monitor can be connected via USB-C as well as Thunderbolt 3.

Thanks!

2018 Mac Mini i7 / 256 / 16GB
2019 24" LG Ultrafine 4k Monitor


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joevt
(@joevt)
Honorable Member
Joined: 2 years ago
 

@lie

The Apple Store product page says it works with Macs that support Thunderbolt and Macs that only have USB-C (such as the MacBook).
https://www.apple.com/ca/shop/product/HMUA2VC/A/lg-ultrafine-4k-display

I believe some people have connected the display using the Moshi cable to a GPU. If you want to add USB (to support the other features of the display such as brightness control) then use a Huawei VR 2 cable or Wacom Link Plus or Sunix UPD2018 or Delock 89582. #159

Maybe Vega 64 is overkill for a Mac Mini? I'm not sure which Razor Core you are referring to. For the Vega 64, it should be able to supply 650W (PSU max power).
https://support.apple.com/en-us/HT208544
https://egpu.io/best-egpu-buyers-guide/

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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LiE
 LiE
(@lie)
Active Member
Joined: 1 month ago
 

Thanks that was very helpful. The Huawei cable looks like it may be straight forward plug and play.

2018 Mac Mini i7 / 256 / 16GB
2019 24" LG Ultrafine 4k Monitor


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(@dennis_wander)
Eminent Member
Joined: 2 years ago
 

@joevt

You mention a setup involving a GTX 1070, HP Dock G2 and a Titan Ridge in your post on the other forum. I'm not quite sure what's connected to what and on which mac, could you elaborate?

2015 15 inch Macbook Pro (2.2 GHz, 16GB RAM, 512GB SSD)
2009 Mac Pro (6-core 3.33 GHz, 24GB RAM, Vega 56, macos 10.14.5 beta 2 & Windows 10 October edition, Apple SSUAX SSD, GC Titan Ridge TB3/USBC card)
Asus XG Station Pro w/ RX480 eGPU


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manuelg
(@manuelg)
New Member
Joined: 2 years ago
 

Instead of the Huawei cable, you can use "MonitorControl" to change the brightness of the 24" LG Ultrafine while using the reversible Moshi USB-C to DisplayPort cable.  You can download it from https://github.com/the0neyouseek/MonitorControl

This post was modified 1 month ago

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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joevt
(@joevt)
Honorable Member
Joined: 2 years ago
 

@dennis_wander

The GPU has DisplayPort outputs connected to GC-TITAN RIDGE DisplayPort inputs, then a USB-C or Thunderbolt display can be connected to a Thunderbolt port of the GC-TITAN RIDGE.

The GC-TITAN RIDGE just needs power if you don't need USB or PCIe tunneling functionality. If you do want USB or PCIe tunneling functionality, then the GC-TITAN RIDGE needs to be connected to the computer some how  via PCIe and the computer needs software (which might not exist) to enable the functionality. Currently, this means a motherboard with GC-TITAN RIDGE Thunderbolt add-in card support.

The HP Thunderbolt Dock G2 does not add anything - except a DisplayPort 1.4 MST hub. macOS doesn't support MST hubs. But in Windows, you can connect a single DisplayPort 1.4 output from a GPU to a DisplayPort 1.4 MST hub, and get two DisplayPort 1.2 outputs to drive a dual cable 5K display such as the Dell UP2715K or LG UltraFine 5K.

I've tested this with an GTX 1070. I'll test an RX 580 later.

That test was mentioned in the posts at
https://egpu.io/forums/thunderbolt-enclosures/list-of-intel-titan-ridge-thunderbolt-3-devices/paged/6/#post-59550
in the section labeled "Thunderbolt Mode: Dell UP2715K tests (Using a PC with GTX 1070 (Pascal))"
https://egpu.io/forums/thunderbolt-enclosures/list-of-intel-titan-ridge-thunderbolt-3-devices/paged/6/#post-59604

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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