Information - PCIe Bifurcation

pcie-bifurcation
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Hey Everyone!

I am here to talk about PCIe Bifurcation.

PCIe Bifurcation

Bifurcation is where you “split” a portion of your PCIe Slot into sections to be used by certain types of hardware

One such type of hardware is the ASUS Hyper M.2 x16 (Quad NVMe) Adapter Card or the ASRock Ultra Quad NVMe M.2 Card

image
https://www.bhphotovideo.com/c/product/1460396-REG/asus_hyper_m_2_x16_card_v2_hyper_m_2_x16_pcie.html?


https://www.asrock.com/mb/spec/product.asp?Model=ULTRA%20QUAD%20M.2%20CARD

Since these cards do not have an on-board PLX chip, they can not “natively” provide the bifurcation “switching” capability needed to split the x16 slot into x4/x4/x4/x4.

Motherboards with Bifurcation?!

Instead we will use this card with motherboards that already have the capability to provide “native” Bifurcation

These boards can include tons of many makes and models and you can definitely verify your motherboard compatibility if you explore the BIOS settings.

I will demonstrate using the PCIe BIOS Settings of the GA-7PESH2 motherboard

BIOS Settings

Not Finished- Just saving my progress