Gigabyte Z490 Vision D (Thunderbolt 3) + i5-10400 + AMD RX 580

[CaseySJ]

Is there any benefit to upgrading from OC 0.7.7 to 0.7.8 when using Big Sur?

OpenCore 0.7.8 is a relatively minor update. For the Z490 Vision D it is perfectly okay to skip and wait for next version.

 

[JoanSilva17]

Hello. Is there an alternative to the Fenvi T919 that is not PCIe since I have all the slots occupied.
I would like to replace the integrated Intel module. Is there an existing alternative?

 

[trs96]

Hello. Is there an alternative to the Fenvi T919 that is not PCIe since I have all the slots occupied.
I would like to replace the integrated Intel module. Is there an existing alternative?

https://www.amazon.com/BCM94360NG-802-11AC-BCM94360CS-Continuity-BCM94352Z

 

[tyns]

I apologize if this has been asked already. With the Vision-D Z490 Board, If I were to upgrade to a 11900K Processor to enable PCIe4 support, will this fully enable the PCIe4 Spec on the motherboard? Namely, will the M2A_CPU M.2 socket reroute to CPU PCIE Lanes? Currently with the 10900K the M2A_CPU is using the Z490 chipset lanes according to the spec in the manual. I assume the 16x and 8x PCIe slots move to the faster PCIe4 lane speed.

I am debating if it is worth the upgrade. My crazy thought is it would be nice to maybe double up the GPU's, since PCIe4 x8 slot are equal to PCIe3 x16 slot. From there run Hypervisor and have both Windows and MacOS running simultaneously on the same box each with their own discreet graphics.

 

[trs96]

With the Vision-D Z490 Board, If I were to upgrade to a 11900K Processor to enable PCIe4 support, will this fully enable the PCIe4 Spec on the motherboard?

The Z490 Vision-D board is only PCIe 3.0 not 4.0.

Z490 VISION D (rev. 1.x) Specification | Motherboard - GIGABYTE Global

Lasting Quality from GIGABYTE.GIGABYTE Ultra Durable™ motherboards bring together a unique blend of features and technologies that offer users the absolute ...

www.gigabyte.com

 

[CaseySJ]

I apologize if this has been asked already. With the Vision-D Z490 Board, If I were to upgrade to a 11900K Processor to enable PCIe4 support, will this fully enable the PCIe4 Spec on the motherboard? Namely, will the M2A_CPU M.2 socket reroute to CPU PCIE Lanes? Currently with the 10900K the M2A_CPU is using the Z490 chipset lanes according to the spec in the manual. I assume the 16x and 8x PCIe slots move to the faster PCIe4 lane speed.

I am debating if it is worth the upgrade. My crazy thought is it would be nice to maybe double up the GPU's, since PCIe4 x8 slot are equal to PCIe3 x16 slot. From there run Hypervisor and have both Windows and MacOS running simultaneously on the same box each with their own discreet graphics.

Actually yes -- if you install a Rocket Lake CPU (Intel 11th Gen) in the Z490 Vision D, you will get the following PCIe 4.0 support:

• The M.2 slot closest to CPU will operate at PCIe 4.0 x4
• The first two PCIe x16 slots closest to CPU will operate at PCIe 4.0 as follows:
  • If only first slot is occupied, it will get all 16 PCIe 4.0 lanes
  • If both first and second slots are occupied, each will get 8 PCIe 4.0 lanes

@trs96 -- Gigabyte's website contradicts itself. The Spec page says PCIe 3.0 only, but the product page says otherwise.

Z490 VISION D (rev. 1.x) Key Features | Motherboard - GIGABYTE Global

Lasting Quality from GIGABYTE.GIGABYTE Ultra Durable™ motherboards bring together a unique blend of features and technologies that offer users the absolute ...

www.gigabyte.com

 

[tyns]

Actually yes -- if you install a Rocket Lake CPU (Intel 11th Gen) in the Z490 Vision D, you will get the following PCIe 4.0 support:

• The M.2 slot closest to CPU will operate at PCIe 4.0 x4
• The first two PCIe x16 slots closest to CPU will operate at PCIe 4.0 as follows:
  • If only first slot is occupied, it will get all 16 PCIe 4.0 lanes
  • If both first and second slots are occupied, each will get 8 PCIe 4.0 lanes

Thanks, CaseySJ for the reply. My concern is whether the M.2 slot reroutes to "add" 4 additional PCIe4 CPU Lanes instead of going through the chipsets 24 lanes. I assume that becoming a PCIe4 enabled motherboard, the M2A_CPU lanes do in fact switch to CPU Lanes. Currently, if you look at page 7 of the Z490 Vision D manual the M2A_CPU slot is not actually part of the 16 PCIe CPU Lanes; it goes through Chipsets 24 Lanes. I am gathering the benefit of PCIe4 is to allow the PCIe CPU Lanes 4 additional CPU lanes (for direct NVMe / CPU speed) so it does not interfere with the GPU's 16 CPU Lanes. Giving it 20 PCIe CPU lanes total as is the benefit of PCIe4. Just want to make sure that is what actually happens on this motherboard as there doesn't seem to be a document stating so. Again, this just allows the 2 GPU slot to have full 8X PCIe4 CPU Lanes in a dual GPU configuration and the M2A_CPU slot using those additional 4 PCIe CPU lanes separately. hope this makes sense.

If you look at the manual for the Z590 Vision D on page 7, you might see what I am getting at in comparison with the Z490.

 

[tyns]

The Z490 Vision-D board is only PCIe 3.0 not 4.0.

This is true in a Gen 10 configuration. Not so in Gen 11. It apparently switches to PCIe4 as mostly all Z490 motherboards were prepared for PCIe4 while Intel worked on Gen 11.

 

[trs96]

It apparently switches to PCIe4 as mostly all Z490 motherboards were prepared for PCIe4 while Intel worked on Gen 11.

Any links to where you found this info ?

 

[CaseySJ]

Thanks CaseySJ for the reply. My concern is whether the M.2 slot reroutes to "add" 4 additional PCIe4 CPU Lanes instead of going through the chipsets 24 lanes. I assume that becoming a PCIe4 enabled motherboard, the M2A_CPU lanes do in fact switch to CPU Lanes. Currently if you look at page 7 of the Z490 Vision D manual the M2A_CPU slot is not actually part of the 16 PCIe CPU Lanes, it goes through Chipsets 24 Lanes.

Interesting point.

• Comet Lake CPU has 16 PCIe 3.0 lanes
• Rocket Lake CPU has 20 PCIe 4.0 lanes (so 4 more lanes)
• When we install Rocket Lake CPU, the M2A_CPU slot must get routed through the CPU because the Z590 chipset only provides PCIe 3.0 lanes

For absolute verification, we can always check the Gigabyte forum or submit a question to their online support desk.