MP 1,1-5,1 GC-Titan Ridge 2.0 Rev 2 - WIRING to Mac Pro 4,1 flashed to 5,1

[jtimleck]

Hi,

This isn’t a question about OpenCore, it’s how did you set up your WIRING to the GC-Titan Ridge 2.0 card (flashed for Mac already) once installed.

I have a Mac Pro 4,1 flashed to 5,1. Titan Card is flashed and installed and using it dual boot (Mac OS High Sierra) and Windows 10. I can get to into Mac OS and Windows fine (again boot screens isn’t this discussion). In windows tho the card doesn’t show as powered for TB and the instructions with the card are fine but are generic and for a PC not Mac so I want to see if I’m missing anything.

I’ve watched (it seems like) all the videos, read (it seems like) all the forums, but this simple step seems to be skipped over again and again. there is next to nothing about how to do the actual wiring of the card to the Mac Pro motherboard.

So want to be sure I don’t need more than power wire install and what and if which wires do I NOT need (Per the first power supply, there’s clearly a power supply wire and that *appears* (from one crappy video) to plug somewhere into the front of the MB

Would appreciate pics (if possible, and thanks in advance) that show which PIN number plug is being plugged in at the card and the MB

 

[jtimleck]

Also, am wondering that the Pixlas mod is necessary here - the Titan card wants two power supply lines in (6pin) and those are currently used to power the Quadro K6000 GPU (Mac OS supported, but no boot screen)(yet). Seems needed if I’m going to run Thunderbolt ports doing what they are supposed to be able to do. ??‍♂️?

Mac Pro Pixlas Mod - The House of Moth

Modify your Mac Pro power supply to relieve the board and feed powerhungry GPU's

thehouseofmoth.com

 

[joevt]

The PCIe power inputs of the GC-TITAN RIDGE are only if you want to be able to charge a laptop from the Thunderbolt ports.

At a minimum, you'll want 3.3V to Force Power (which people usually do by jumping the middle pin to the force power pin).
https://forums.macrumors.com/threads/testing-tb3-aic-with-mp-5-1.2143042/post-28346895
unless you have a flashed card that doesn't require this?

The only other connections you may want is two USB 2.0 ports to the 9-pin header.

 

[jtimleck]

The PCIe power inputs of the GC-TITAN RIDGE are only if you want to be able to charge a laptop from the Thunderbolt ports.

At a minimum, you'll want 3.3V to Force Power (which people usually do by jumping the middle pin to the force power pin).
https://forums.macrumors.com/threads/testing-tb3-aic-with-mp-5-1.2143042/post-28346895
unless you have a flashed card that doesn't require this?

The only other connections you may want is two USB 2.0 ports to the 9-pin header.

Thanks, helpful info. It’s jumpered on the 3-5, but the issue is on the Bootcamp windows 10 side of things, no power in that OS. Weird. Plenty to check out in that thread still. But regardless I’ve decided to to put in the Pixlas mod, take *that* power to the GPU, then take the now 2 free, power cables, straight to the Titan. (I want to power the crap out of it so I can use it as a VR machine)

 

[joevt]

Thanks, helpful info. It’s jumpered on the 3-5, but the issue is on the Bootcamp windows 10 side of things, no power in that OS. Weird. Plenty to check out in that thread still. But regardless I’ve decided to to put in the Pixlas mod, take *that* power to the GPU, then take the now 2 free, power cables, straight to the Titan. (I want to power the crap out of it so I can use it as a VR machine)

If the card is flashed, then it might not work in Windows. Did you try warm booting into Windows?

 

[jtimleck]

If the card is flashed, then it might not work in Windows. Did you try warm booting into Windows?

I’ll put together the “step by step” test and elimination of issues process and get my “scenarios” down to do so.

My end outcome here is to have the Thunderbolt port have the capacity to have that charging capacity AND data using a VR head set. As an earlier test, using TB port on my Mac mini 2018 (supposed to be 15w), the 15w port can’t keep up with the draw. And id rather have this set up working than a USB A card that’s 3.1 Gen 2 *just* for the PC after dropping all this coin on the Titan.

I’ll let you know how I make out

 

[macsoundsolutions]

I’ll put together the “step by step” test and elimination of issues process and get my “scenarios” down to do so.

My end outcome here is to have the Thunderbolt port have the capacity to have that charging capacity AND data using a VR head set. As an earlier test, using TB port on my Mac mini 2018 (supposed to be 15w), the 15w port can’t keep up with the draw. And id rather have this set up working than a USB A card that’s 3.1 Gen 2 *just* for the PC after dropping all this coin on the Titan.

I’ll let you know how I make out

What about just using a powered hub? I just installed a flashed Titan Ridge and it seems the Inatek USB C hub I have connected combined with another Sandisk pro extreme on the second port along with my RX5700XT non pixlas mod was drawing too much power and I was getting some random shutdowns. I then ran power to the hub and it's been ok so far. Up until I installed titan ridge I didn't have any power issues, it replaced my Sonnet USB 3.1 Gen 2 card. So long story short I am following your next moves. Does the VR headseat need thunderbolt? Or is it just USB 3.1 Gen 2. A powered hub might be good enough without the pixlas mod and powering the Titan Ridge with the mac pros GPU leads but not sure... I guess the pixlas mod would be cheaper way to go as thunderbolt hubs are pricey, but if you just need usb 3.1 gen 2 then a powered hub might work.