@Phoenyx Em relação ao slot pciex 16 eu tenho uma gigabyte ax370-gaming 5 e a especificação dela do pciex é:
1 x PCI Express x16 slot, running at x16 (PCIEX16)
* For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16 slot.
* Actual support may vary by CPU.
1 x PCI Express x16 slot, running at x8 (PCIEX8)
* The PCIEX8 slot shares bandwidth with the PCIEX16 slot. When the PCIEX8 slot is populated, the PCIEX16 slot operates at up to x8 mode.
* Actual support may vary by CPU.
(The PCIEX16 and PCIEX8 slots conform to PCI Express 3.0 standard.)
1 x PCI Express x16 slot, running at x4 (PCIEX4)
* The PCIEX4 slot shares bandwidth with all of the PCI Express x1 slots. The PCIEX4 slot operates at up to x4 mode when all of the PCI Express x1 slots are empty.
3 x PCI Express x1 slots
* All of the PCI Express x1 slots share bandwidth with the PCIEX4 slot. The PCIEX4/PCIEX1_2/PCIEX1_3 slot operates at up to x1 mode when the PCIEX1_1 slot is populated; the PCIEX4 slot operates at up to x2 mode when the PCIEX1_2/PCIEX1_3 slot is populated.
(The PCIEX4 and PCI Express x1 slots conform to PCI Express 2.0 standard.)
Pelo que entendi suporte 2 placas ne?
Essa e a ultima mensagem, obrigado por me ajudar.