Notifications
Clear all

Mac Pro 6,1 with Ultrafine 4k (21.5")  

  RSS

simonb
(@simonb)
Active Member
Joined: 2 months ago
 

I got hold of a cheap Mac Pro 6,1 (Trach can) and would like to use it with my 4K Ultrafine.

Of course that is a dead end out of the box, but after googling a lot here I found the magic Huawei VR 2 cable that uses an USB-A and a DP 1.2 (that the Mac Pro got via a TB2 port) to USB-C alt mode. I am wondering if that is possible, it should be right? But I can't find anything about it.

I do have a Razer X with a Vega 64, so that is my backup plan, because that should work as well with the cable above, and seems to be verified on this forum.

However, I don't need that GPU power and it would ruin that nice quiet Mac Pro on my desk.

My last option is to use it with my Ultrafine 5k, but I don't like that scaling 🙁

So, has anyone with the Huawei cable and a TB2 Mac got it to work with the old Ultrafine 4k?

This topic was modified 2 months ago

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

ReplyQuote
itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@simonb, There are a few options for your needs. The Huawei VR 2 cable definitely works but you'd need a miniDP-DP adapter. I have one but it didn't last long due to my different testings. You can also look into bidirectional DisplayPort to USB-C cables (Moshi and Monoprice). They don't have a USB-A connection so you'd need a software solution to control display brightness and other functions.

 

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 13" MacBook Pro [10th,4C,G] + RTX 2080 Ti @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 2004 [build link]  


ReplyQuote
simonb
(@simonb)
Active Member
Joined: 2 months ago
 

@itsage, Thanks for the reply!

So basically the things outlined by https://egpu.io/forums/postid/79127/ under Cable and adapter options should work directly from a TB2 out of my Mac Pro (via a miniDP-DP adapter)? Feels weird that no-one on the internet have tried this already.

My display seems to need some USB power so the Moshi is sadly ruled out.

 

It would be fantastic if this works out and I can escape using the Razer X on my desk and don't need to fiddle with hacks to get TB2-TB3 eGPU working on my Mac.

 

Guess I just have to order the cable on eBay and try.

 

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

ReplyQuote
itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@simonb, That post covers almost all possible solutions. I personally recommend using the eGPU you already have access to. Purge-Wrangler is all you need to enable external graphics feature through Thunderbolt 2 connection. It helps the Mac Pro run cooler and possibly prolongs the life of the dGPUs. The VR 2 cable can be used either directly from the Mac Pro or through the eGPU so it's a safe bet either way. If you worry about noise level, get a 2m Thunderbolt 2 cable and keep the Razer Core X out of sight.

 

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 13" MacBook Pro [10th,4C,G] + RTX 2080 Ti @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 2004 [build link]  


ReplyQuote
simonb
(@simonb)
Active Member
Joined: 2 months ago
 

I think I get why the original "4K" is a mess (impossible?) to get working with DP 1.2 now, it is a 4096x2304 panel, and that is just too much pixels. 🙁

Just ordered the cable and I guess the eGPU route is the way to go then, thanks again!

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

ReplyQuote
joevt
(@joevt)
Noble Member
Joined: 3 years ago
 
Posted by: @simonb

I think I get why the original "4K" is a mess (impossible?) to get working with DP 1.2 now, it is a 4096x2304 panel, and that is just too much pixels. 🙁

Just ordered the cable and I guess the eGPU route is the way to go then, thanks again!

The LG display is a DisplayPort 1.2 display - 4096x2304 is well within the DisplayPort 1.2 limits. The cable should work without the eGPU (you need Mini DisplayPort (male) to DisplayPort (female) adapter). You have a Thunderbolt Mac, so the Thunderbolt 3 solutions should also work - connect a Thunderbolt 3 device that has two Thunderbolt 3 ports, then connect the display to the second Thunderbolt 3 port.

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


ReplyQuote
simonb
(@simonb)
Active Member
Joined: 2 months ago
 

@joevt, What do you mean with "the Thunderbolt 3 solutions", I am not really following there.

However, got the VR2 cable and can confirm it works perfectly with a Mini DisplayPort (male) to DisplayPort (female) adapter straight from the TB 2 port in the Mac Pro 6,1.

It also works just fine with the eGPU and Purge Wrangler, but it is rather noisy and I have to boot the machine with the display plugged into the Mac Pro to get a picture and then switch to the eGPU.

 

To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.

.

ReplyQuote
joevt
(@joevt)
Noble Member
Joined: 3 years ago
 
Posted by: @simonb

@joevt, What do you mean with "the Thunderbolt 3 solutions", I am not really following there.

I mean connect a Thunderbolt 3 device that has two Thunderbolt 3 ports, then connect the display to the second Thunderbolt 3 port.

Posted by: @simonb

However, got the VR2 cable and can confirm it works perfectly with a Mini DisplayPort (male) to DisplayPort (female) adapter straight from the TB 2 port in the Mac Pro 6,1.

It also works just fine with the eGPU and Purge Wrangler, but it is rather noisy and I have to boot the machine with the display plugged into the Mac Pro to get a picture and then switch to the eGPU.

Glad you got it working. The VR2 cable solution is less expensive and works just as well as a Thunderbolt 3 solution.

If you had the newer 24 inch LG UltraFine 4K display (supports Thunderbolt 3), then you could use the Apple Thunderbolt 3 to Thunderbolt 2 adapter and get a slightly better result than connecting via USB-C (but I am unsure how the features differ for each connection method - I guess Thunderbolt 3 would allow USB 3.x from the USB ports of the display)

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


ReplyQuote