B450 AORUS PRO CAN IT RUN RX580 CROSSFIRE

Ryzenuser19 · March 13, 2020

My friend who works at cex just had a pc taken in and they strip the ram cpu and storage out and ditch the rest or give back to the customer but some kids dad said he doesnt want it back and to just do what ever he wants with the motherboard psu and case. so hes keeping the case and psu but gave me the motherboard luckily since i was in the store as it happend. so i went round back grabed the board and have it sat on my tech jesus mat waiting to see if i use it or wait till Wednesday to finally get off the a320m chipset.

can it crossfire 2 RX580s. ive seen and noticed with some builds regardless of the fact of using a fullsized x4 slot that performace varies board to board so will this board do it or should i get the 2 metal slot x470 or x570 board on Wednesday instead and donate this board to someone i know could do with a upgrade.

minibois · March 13, 2020

10 minutes ago, Ryzenuser19 said:

My friend who works at cex just had a pc taken in and they strip the ram cpu and storage out and ditch the rest or give back to the customer but some kids dad said he doesnt want it back and to just do what ever he wants with the motherboard psu and case. so hes keeping the case and psu but gave me the motherboard luckily since i was in the store as it happend. so i went round back grabed the board and have it sat on my tech jesus mat waiting to see if i use it or wait till Wednesday to finally get off the a320m chipset.

can it crossfire 2 RX580s. ive seen and noticed with some builds regardless of the fact of using a fullsized x4 slot that performace varies board to board so will this board do it or should i get the 2 metal slot x470 or x570 board on Wednesday instead and donate this board to someone i know could do with a upgrade.

according to the product specifications on the product websie, yes:

But why would you want to do that..?

Noah0302 · March 13, 2020

11 minutes ago, minibois said:

But why would you want to do that..?

Agree.

Crossfire, as well as SLI, is not even supported in most games.

mariushm · March 13, 2020

That particular board has 3 pci-e x16 slots but electrically, one is pci-e x1 and one is pci-e x4 (from chipset) :

https://www.gigabyte.com/Motherboard/B450-AORUS-PRO-rev-10/sp#sp

1 x PCI Express x16 slot, running at x16 (PCIEX16)
* Actual support may vary by CPU.
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
(The PCIEX16 slot conforms to PCI Express 3.0 standard.)
1 x PCI Express x16 slot, running at x4 (PCIEX4)
* The PCIEX4 slot shares bandwidth with the PCIEX1_1 and PCIEX1_2 slots. The PCIEX4 slot operates at up to x2 mode when the PCIEX1_1/PCIEX1_2 slot is populated. The PCIEX4 slot operates at up to x4 mode when both of the PCIEX1_1 and PCIEX1_2 slots are empty.
1 x PCI Express x16 slot, running at x1 (PCIEX1_2)
1 x PCI Express x1 slot (PCIEX1_1)
(The PCIEX4 and PCIEX1 slots conform to PCI Express 2.0 standard.

SLI requires at least 8 pci-e lanes, so you need two pci-e slots, each pci-e x8 or better.

Unlike SLI, Crossfire doesn't care, so you would be able to plug the 2nd video card in the pci-e x4 slot (as long as you don't also use that other pci-e x16 slot)

The performance of Crossfire will not be as great as having two pci-e x8 slots, one card will drag down the other card a bit, but you would have performance higher than a single card in games that support Crossfire.

Not all games support Crossfire and even less games will support it in the future, so I don't recommend buying a second RX 580 card in the hope of improving the fps in games.