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dukeee

macrumors newbie
Original poster
Nov 13, 2009
21
2
Hi Guy's,

awaiting delivery of my 2019 MacPro, I still have a few Thunderbolt 2 Drobos and a Promise Pegasus R6 with Thunderbolt 2. Given that I mortgaged my house for the MacPro cant replace them all as well. So I was wondering if I can put a Thunderbolt 2 PCIe card in the 2019 MacPro?

Also more a general question with USB and Thunderbolt 3 now having the same plugs who am I supposed to hold them apart and know what cable is what and if the devices are USB c or Thunderbolt 3?

Cheers

steve
 
Do they exist? A quick search only showed up one from hp with a single port - bit of a waste of a PCI slot and of money.

How many ports do you actually need? Could you daisy chain the peripherals and attach them to a thunderbolt 3 to thunderbolt 2 adaptor? That would be infinitely cheaper.

How do you tell thunderbolt 2 cables and sockets from mini displayport ones? Thunderbolt devices and cables have the thunderbolt logo on them. If there's no logo, assume it is USB c only. Your bigger worry should be whether USBC cables are USB3.2 Gen 2, USB 3.2 Gen 1 or just USB 2...
 
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need 4 ports, have bought a Thunderbolt 2 to Thunderbolt 3 adapter but wasn't sure if I can daisy Chain them. A noticed now the flash on the Thunderbolt 3 cables thanks for the tip.

How can you determine between different USB C cables?
 
Hi Guy's,

awaiting delivery of my 2019 MacPro, I still have a few Thunderbolt 2 Drobos and a Promise Pegasus R6 with Thunderbolt 2. Given that I mortgaged my house for the MacPro cant replace them all as well. So I was wondering if I can put a Thunderbolt 2 PCIe card in the 2019 MacPro?

Also more a general question with USB and Thunderbolt 3 now having the same plugs who am I supposed to hold them apart and know what cable is what and if the devices are USB c or Thunderbolt 3?

Cheers

steve
You need to use the Thunderbolt 2 to 3 adapter from Apple, and you can daisy chain your TB2 devices through that adapter, assuming the devices have passthrough ports.
 
Well I have the Pegasus 2 r4 ext HD. so here’s what happened. I got the TB2 to TB3 adapter from Apple and plugged it into the pci slots on Mac Pro. On start up it mac Pro would not boot up to a desktop only when I unplugged the Pegasus would it boot up to desktop. So I checked and there was a firmware update for the Pegasus so I updated and tried it again still no boot up. So now I call a senior Mac Pro advisor and we stayed on phone for 2 1/2 hrs trying to figure this out. I sent him screen shots and file info that Hes to send to engineers. So at this point Im supposed to leave Pegasus unplugged until it booted up to desktop then plug in. BTW I will mount on desktop with adapter. So now get off phone and go to boot up ...now Mac Pro won’t boot up at all with nothing but a display plugged up. So I get on phone again [2nd day now] and get senior advisor and he has me do a total new install. That still did not work...long story short advisor said it’s hardware issue and sent me to sales for replacement I just sent back Mac Pro Monday and replacement will be here Thursday. I had adapter replaced and gonna try this again and see. Pegasus support was ABSOLUTELY NO HELP AT ALL. Seems they were stearin me to by a new drive TB3 or the internal drives.
 
I am using some TB2 to TB3 adapters for a bunch of TB1 drives that I have, including a couple R4 and an R6. They work if I plug them into the main TB3 slot, but I also think they are causing kernal panics every once in awhile. The drives are also not recognized correctly all of the time. Those TB2 to TB3 adapters don't seem to be very reliable and certainly cost too much. I've been looking at replacing them with TB3 or USB enclosures.
 
Well I have the Pegasus 2 r4 ext HD. so here’s what happened. I got the TB2 to TB3 adapter from Apple and plugged it into the pci slots on Mac Pro. On start up it mac Pro would not boot up to a desktop only when I unplugged the Pegasus would it boot up to desktop. So I checked and there was a firmware update for the Pegasus so I updated and tried it again still no boot up. So now I call a senior Mac Pro advisor and we stayed on phone for 2 1/2 hrs trying to figure this out. I sent him screen shots and file info that Hes to send to engineers. So at this point Im supposed to leave Pegasus unplugged until it booted up to desktop then plug in. BTW I will mount on desktop with adapter. So now get off phone and go to boot up ...now Mac Pro won’t boot up at all with nothing but a display plugged up. So I get on phone again [2nd day now] and get senior advisor and he has me do a total new install. That still did not work...long story short advisor said it’s hardware issue and sent me to sales for replacement I just sent back Mac Pro Monday and replacement will be here Thursday. I had adapter replaced and gonna try this again and see. Pegasus support was ABSOLUTELY NO HELP AT ALL. Seems they were stearin me to by a new drive TB3 or the internal drives.

That sounds more like a problem with your mac pro than anything else, from what you've written...
 
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I have a TB2 Pegasus R8 and it works fine with an TB2 -> TB3 adapter on my 7,1 MP. I also have an older FibreChannel array that works through the Promise Fibre to TB2 converter which is daisy-chained with the R8.

All works fine, no weird boot procedures or anything.
 
Well I have the Pegasus 2 r4 ext HD. so here’s what happened. I got the TB2 to TB3 adapter from Apple and plugged it into the pci slots on Mac Pro. ....

The TB2 to TB3 adapter plugs into a TB3 socket; not PCI-e slots. There is a TB3 socket on Apple's I/O card, but it is still a socket on the outside edge of the Mac Pro.
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Hi Guy's,

awaiting delivery of my 2019 MacPro, I still have a few Thunderbolt 2 Drobos and a Promise Pegasus R6 with Thunderbolt 2. Given that I mortgaged my house for the MacPro cant replace them all as well. So I was wondering if I can put a Thunderbolt 2 PCIe card in the 2019 MacPro?

No. The Mac Pro 2019 doesn't have the internal connection necessary to complete a TBv2 card set up. ( no GPIO connection... and getting to a DisplayPort feed would be the ultimate Rube Goldberg set up).

There is a TBv2 to TBv3 adapter.

You'll need a powered TBv2 device as it doesn't do power (the adapter needs power ).


Also more a general question with USB and Thunderbolt 3 now having the same plugs who am I supposed to hold them apart and know what cable is what and if the devices are USB c or Thunderbolt 3?

As standard practice with USB in general. Have to look at the small icons next to the port or on the cables. Thunderbolt 'lightning' icon means TB. The myriad of other cryptic USB icons of the year means something else.
 
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I have a TB2 Pegasus R8 and it works fine with an TB2 -> TB3 adapter on my 7,1 MP. I also have an older FibreChannel array that works through the Promise Fibre to TB2 converter which is daisy-chained with the R8.

All works fine, no weird boot procedures or anything.
Yea just my luck I got a reject Mac Pro. I’ll find out tomorrow and hopefully that was the case.
 
TB 3 has a TB icon on the connector portion. USB-C doesn't .

61FNfuK%2Bh2L._SX425_.jpg


iCB57_New_01_1024x1024.jpg
 
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