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Gigabyte Z390 M Gaming build with working NVRAM

pastrychef

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So, FINALLY back to working on my Hackintosh (Hack_2)! Life, volunteer activities and other things interrupted, but we’re back.

At this point, the motherboard is fully populated and I’ve begun installing the power cables. The ATX_12V connectors on the mother board are what is shown on the diagram:View attachment 501008

The cable diagram from the power supply (Silverstone SST-ST75F-GS):

View attachment 501009

Connector detail:

View attachment 501010

The left connector of P3, for example, has the same configuration of the ATX_12V_2X2, so I would think that is OK. However, the P4 does not match the ATXP12V_2X4. P5, P6 and P7 are configured the same way. I have also verified the hardware against the diagrams. What’s going on here? I assume that an appropriate cable is available somewhere, but where? Haven’t found anything yet on GIGABYTE or Silverstone.

P4, P5, P6, and P7 should be used for graphics cards or Thunderbolt card.

P2 and P3 should be used for motherboard to power CPU.

I have no idea why the keying of the connectors don't match the motherboard. I think it's best to contact Silverstone and/or Gigabyte.
 
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Okay. Does your Silverstone come with only the cables you list? The 2x4 cable from my Corsair, which is only semi-modular, in that these two cables are fixed, terminate in the correct "shapes" for the motherboard.

You can, in theory use just a 1x4 plug/socket BUT I don't think that would be recommended with your i7 CPU. As I understood it the separate 1x4 was for extra power beyond the standard 2x4.

Again, sorry I can't make the Silverstone work despite examining each cable ... Mind you, maybe P3 will fit as the square shape is just bevelled at the bottom? Experiment carefully!

No, I wouldn’t do that. While long, long ago in a galaxy far, far away, I did programming work for several years, I’m a retired mechanical engineer with very little contact with electronics hardware.
 
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Just released Big Sur 11.1, can I update normal? as if it were an original Apple machine, or do I need to do something?
I am using OpenCore 0.6.4 with the updated kexts.
 

UtterDisbelief

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No, I wouldn’t do that. While long, long ago in a galaxy far, far away, I did programming work for several years, I’m a retired mechanical engineer with very little contact with electronics hardware.
Interestingly some older, basic motherboards came with just the 4-pin plug. It's kind of auxilliary to the main ATX connector anyway, which started as 20-pin and grew 4 more of its own. The auxilliary seems to have grown more pins too so that it could accommodate more recent, power-hungry processors. Previously you could run a system with only the main ATX for power anyway. Things change. Evolution I suppose.

As an engineer (me too) you might find the Wikipedia article about ATX form-factor and power-supplies educational.

(Yes, it's a bit "dry").

 

pastrychef

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Just released Big Sur 11.1, can I update normal? as if it were an original Apple machine, or do I need to do something?
I am using OpenCore 0.6.4 with the updated kexts.

I just updated from System Preferences > Software Update... I'm on OpenCore 0.6.4.

Screen Shot 2020-12-14 at 5.35.42 PM.png
 
Last edited:
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P4, P5, P6, and P7 should be used for graphics cards or Thunderbolt card.

P2 and P3 should be used for motherboard to power CPU.

I have no idea why the keying of the connectors don't match the motherboard. I think it's best to contact Silverstone and/or Gigabyte.

Yes, already in progress. I‘ve done Silverstone and will do GIGABYTE shortly...
 
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Interestingly some older, basic motherboards came with just the 4-pin plug. It's kind of auxilliary to the main ATX connector anyway, which started as 20-pin and grew 4 more of its own. The auxilliary seems to have grown more pins too so that it could accommodate more recent, power-hungry processors. Previously you could run a system with only the main ATX for power anyway. Things change. Evolution I suppose.

As an engineer (me too) you might find the Wikipedia article about ATX form-factor and power-supplies educational.

(Yes, it's a bit "dry").


My previous Z87N - WiFi had only the 2X2, so it didn’t need a 2X4 connector. And yes, I have read the Wikipedia page with the ATX, The micro-ATX and ITX variants. I was curious about the differences as the Z87N is a micro-ATX...
 
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I am only using the 2x4 connector on the motherboard. My 2x2 is unused. My understanding was it was one or the other, but not both.
 

pastrychef

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What are these 2x4 and 2x2 that you guys are talking about??
 

trs96

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