Is Z270M Extreme4 support Bifurcation£
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=18834
Printed Date: 27 Jul 2025 at 12:40am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Is Z270M Extreme4 support Bifurcation£
Posted By: Sean-one
Subject: Is Z270M Extreme4 support Bifurcation£
Date Posted: 12 May 2021 at 8:45pm
Hello:
In Z270M Extreme4 Spec page describes:
3 x PCI Express 3.0 x16 Slots
PCIE1/PCIE3/PCIE4: single at x16 (PCIE1);
dual at x8 (PCIE1) / x8 (PCIE3);
triple at x8 (PCIE1) / x8 (PCIE3) / x4 (PCIE4))*
Is PCIE3 supports bifurcation to x4+x4 when in dual mode?
Thanks!
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Replies:
Posted By: ASRock_TSD
Date Posted: 14 May 2021 at 3:01pm
Hi Sean-one,
Thank you for your reply.
Z270M Extreme4's PCIe slots don't support the PCIe bifurcation.
You can use a single PCIe x4 device on that slots.
If you have other questions, please feel free to contact us.
All the best,
ASRock TSD
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Posted By: Sean-one
Date Posted: 14 May 2021 at 4:04pm
Thanks for your reply.
I want add nvme card in PCIE solts with Z series motherboard.
For example ASRock ULTRA QUAD M.2 CARD, but its motherboard support list shows only X299 X399 can support it.
As I known, Z370M pro4 can support PCIE bifurcation too, but there is no official description.
Does ASRock have any PCIE bifurcation support board list like below?
https://www.asus.com/support/FAQ/1037507" rel="nofollow - Compatibility of PCIE bifurcation between Hyper M.2 series Cards and Add-On Graphic Cards
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Posted By: ASRock_TSD
Date Posted: 17 May 2021 at 5:00pm
Hi Sean-one,
Thank you for your reply.
Here is our Hyper Quad M.2 card and Ultra Quad M.2 card's support list for your reference.
Hyper Quad M.2 card: https://www.asrock.com/mb/spec/product.asp%3cModel=HYPER%20QUAD%20M.2%20CARD&cat=Manual#SupportList" rel="nofollow - https://www.asrock.com/mb/spec/product.asp?Model=HYPER%20QUAD%20M.2%20CARD&cat=Manual#SupportList
Ultra Quad M.2 card: https://www.asrock.com/mb/spec/product.asp%3cModel=ULTRA%20QUAD%20M.2%20CARD#SupportList" rel="nofollow - https://www.asrock.com/mb/spec/product.asp?Model=ULTRA%20QUAD%20M.2%20CARD#SupportList
If you have other questions, please feel free to contact us.
All the best,
ASRock TSD
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