Thunderbolt4 and backwards compatibility oddities.
 
Notifications
Clear all

Thunderbolt4 and backwards compatibility oddities.  

  RSS

Yukikaze
(@yukikaze)
Noble Member Moderator
Joined: 5 years ago
 

So today I was trying to setup some old TB1 equipment with my TB4 system (Yoga 14s ITL) using the Apple TB3 to TB adapter. This has worked before with my ZBook G4 with no issues.

To my surprise, the TB1 devices would either not be detected by the system at all (Thunderlink TB1 to PCIe enclosures) or would immediately bluescreen the system (Sonnet Echo Expresscard/34).

I have a few TB3 to NVMe adapters and also a TB3 to PCIe adapter, and these seem to work with no issues, but none of the old equipment works with my TB4 system via the TB3 to TB adapters.

I find this pretty odd: Has someone here run into something similar?

This topic was modified 6 months ago

Want to output 4K@60Hz out of an old system on the cheap? Read here.
Give your Node Pro a second Thunderbolt3 controller for reliable peripherals by re-using a TB3 dock (~50$).

"Always listen to experts. They'll tell you what can't be done, and why. Then do it."- Robert A. Heinlein, "Time Enough for Love."

 
2012 Mac Mini [3rd,4C,Q] + RX 480 @ 10Gbps-TB1 (Atto Thunderlink) + macOS 10.15.7 [build link]  


ReplyQuote
Topic Tags
slothman
(@slothman)
Active Member
Joined: 1 year ago
 

This seems the most apropos topic to post my findings, so forgive me if posting something unrelated to TB1 is off topic from the intentions of the OP.  I just mentioned in my build topic that after purchasing a thunderbolt 4 hub, my eGPU build that was subpar on the transfer speeds due to akitio and GPD now using the same protocols, now runs at full transfer speed while using the hub in line. So I would encourage any other individuals experiencing transfer speed hangups to test out a thunderbolt 4 hub in line to see if that fixes it, budget willing and your need for the faster rates demanding, of course.

2020 8" GPD Win Max [10th,4C,G] + RTX 2070 @ 16Gbps-TB3 (AKiTiO Node Titan) + Win10 [build link]  

ReplyQuote
joevt
(@joevt)
Noble Member
Joined: 4 years ago
 

@yukikaze, did you try connecting the TB1 device to a TB3 device, then the TB3 device to the TB4 hub?

Mac mini (2018), Mac Pro (Early 2008), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Radeon Pro W5700, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


ReplyQuote
Yukikaze
(@yukikaze)
Noble Member Moderator
Joined: 5 years ago
 

@joevt, I did. It doesn't work when connected directly to my laptop (via the Apple adapter) and it also doesn't work when connected downstream of my Node Pro (also via the Apple adapter). I even tried different Apple adapters, so the adapter is not at fault. TB3 stuff works just fine (such as a generic TB3 to PCIe PCB) via either, but old TB1 equipment just doesn't.

 

Want to output 4K@60Hz out of an old system on the cheap? Read here.
Give your Node Pro a second Thunderbolt3 controller for reliable peripherals by re-using a TB3 dock (~50$).

"Always listen to experts. They'll tell you what can't be done, and why. Then do it."- Robert A. Heinlein, "Time Enough for Love."

 
2012 Mac Mini [3rd,4C,Q] + RX 480 @ 10Gbps-TB1 (Atto Thunderlink) + macOS 10.15.7 [build link]  


ReplyQuote
joevt
(@joevt)
Noble Member
Joined: 4 years ago
 

@yukikaze, I wonder if a non-Apple Thunderbolt 3 to Thunderbolt 2 adapter would change anything.

 

Mac mini (2018), Mac Pro (Early 2008), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Radeon Pro W5700, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


ReplyQuote
Yukikaze
(@yukikaze)
Noble Member Moderator
Joined: 5 years ago
 

@joevt, it might, but I don't have one.

 

Want to output 4K@60Hz out of an old system on the cheap? Read here.
Give your Node Pro a second Thunderbolt3 controller for reliable peripherals by re-using a TB3 dock (~50$).

"Always listen to experts. They'll tell you what can't be done, and why. Then do it."- Robert A. Heinlein, "Time Enough for Love."

 
2012 Mac Mini [3rd,4C,Q] + RX 480 @ 10Gbps-TB1 (Atto Thunderlink) + macOS 10.15.7 [build link]  


ReplyQuote