MP 1,1-5,1 Problems finding dealers for the exotic cables of a 5.1

[Joonasamuel]

Hey!

I’m in a bit of a pickle here. I have a Mac Pro 5.1 (mid 2010) which is in dire need of an OS upgrade. I managed to get an Asus Geforce GTX 780 which I assume allows me to upgrade to Mojave.

I struggle with finding enough power and the cables, and where to actually buy the cables, to get the new GPU up and running as it requires both a 6-pin and an 8-pin to function. I have 2x 6-pin mini-PCIE outputs on the board, plus the power which is hooked up to the optical disk.

The problem with the cables powering the optical disk is that they are combined SATA with power and data both in the same socket (7+15 pin). Something which I’ve never encountered before.

What I think I should do is connect the two mini-PCIE outputs to a 2x 6-pin PCIE to 8-pin adapter. Then somehow manage to find a cable which has these 2x 7+15pin (I presume) SATA inputs and a 6-pin PCIE on the other end. My problem is where exactly do I find these cables? I’ve never even seen a SATA cable like this, and I can’t find mini-PCIE cables in my country.

Any tips on what’s the best option and where to buy these cables are greatly appreciated! I’ve attached photos of said components. Also if someone has any info whether I need to delete or install any drivers to operate this thing, or is it good to go with High Sierra and Mojave soon as I get it powered up?

 

[startergo]

Do it the right way. Search for Pixla's mod ln the forum.

 

[MarkC426]

Or get a gpu with one 8 pin socket.

 

[Macschrauber]

Get a double mini pcie cabe to 8 pin plus an adapter from 8 to 2 x 6plus2

You will get load balancing and the ca. 200 Watts both mini pie 6pins deliver in real world should feed the gpu.

Dont do this if you plan long lasting render or computing jobs on the gpu. For average use this will fit.

 

[startergo]

Buy the open end cables here:

Mac Pro Pixlas Mod Open-End to Dual (6+2) Pin Power Cable (Splice Connectors Available)

Mac Pro Pixlas Mod Open-End to Dual (6+2) Pin Sleeved Cable

kareonkables.com

Pixlas Mod Mac Pro Mod cables for upgrading GPU's in the Mac Pro. | Custom Low Profile Power Cables for PCs, Servers & Workstations

Pixlas Mod, Mac Pro, Automotive Power Solutions, Appliance & Military Spec Power Cables Available.

kareonkables.com

And buy the crimps separately.
They make custom cables at kareonkables as well.

 

[zedex]

Hey!

I’m in a bit of a pickle here. I have a Mac Pro 5.1 (mid 2010) which is in dire need of an OS upgrade. I managed to get an Asus Geforce GTX 780 which I assume allows me to upgrade to Mojave.

I struggle with finding enough power and the cables, and where to actually buy the cables, to get the new GPU up and running as it requires both a 6-pin and an 8-pin to function. I have 2x 6-pin mini-PCIE outputs on the board, plus the power which is hooked up to the optical disk.

The problem with the cables powering the optical disk is that they are combined SATA with power and data both in the same socket (7+15 pin). Something which I’ve never encountered before.

What I think I should do is connect the two mini-PCIE outputs to a 2x 6-pin PCIE to 8-pin adapter. Then somehow manage to find a cable which has these 2x 7+15pin (I presume) SATA inputs and a 6-pin PCIE on the other end. My problem is where exactly do I find these cables? I’ve never even seen a SATA cable like this, and I can’t find mini-PCIE cables in my country.

Any tips on what’s the best option and where to buy these cables are greatly appreciated! I’ve attached photos of said components. Also if someone has any info whether I need to delete or install any drivers to operate this thing, or is it good to go with High Sierra and Mojave soon as I get it powered up?

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If you are in Australia I will send you the required cables.. the GTX 780 is a very good example of a card that does not need a PIXLAS mod. I'm not knocking PIXLAS but it is worth remembering that much older generation cards (KEPLER) were 'modded' to the satisfaction of nearly all 6+8-pin upgraders using a simple 6pin to 8pin extension cable (on one of the two Mac standard mini-6pin to 6pin power connectors).