Z170 Gaming-ITX/ac PCI-e 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=678
Printed Date: 12 May 2024 at 7:49pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Z170 Gaming-ITX/ac PCI-e bifurcation
Posted By: jb1
Subject: Z170 Gaming-ITX/ac PCI-e bifurcation
Date Posted: 20 Aug 2015 at 3:26am
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Hi, I'm wondering if the Z170 Gaming-ITX/ac supports PCI-e bifurcation of x16 lanes into two http://viglink.pgpartner.com/rd.php?r=1636&m=1457804957&q=r&rdgt=1439828548&it=1440260548&et=1440433348&priceret=125.00&pg=~~3&k=ab327235432804a9d6a6531347af9097&source=feed&url=http%3A%2F%2Fwww%2Eserversupply%2Ecom%2Fproducts%2Fpart%5Fsearch%2Fpid%5Fquery%2Easp%3Fpid%3D258687&st=feed&mt=~~~~~~~~n~~~" rel="nofollow - PCI-e x8 slots. The Z170 chipset supports this, but I'm curious if the Asrock implementation does. If so, using something like this should be possible:  |
Replies:
Posted By: jb1
Date Posted: 25 Aug 2015 at 1:56am
| Any idea about support for this? I can't seem to find it in the manual. |
Posted By: jb1
Date Posted: 22 Sep 2015 at 10:15pm
| bump |
Posted By: parsec
Date Posted: 22 Sep 2015 at 10:41pm
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Good question. That PCIe device in your picture, is that some type of riser card, or a PCIe x16 lane "splitter" of some sort? A little of both I suspect. I've never had personal experience with what you are asking. Plus I've never seen a forum post besides yours on this topic, sorry to say. I don't know if bifurcation requires a UEFI/BIOS option or not, and if it is enabled outside of the chipset, meaning in control of the mother board. I'll try to find more information on this for you. ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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Posted By: Xaltar
Date Posted: 22 Sep 2015 at 11:50pm
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I know that the ASRock's X99 ITX board supported bifurcation with a BIOS update so I would guess that there must be some setting in the BIOS that allows for this. I don't know however if it would already be present in the I think you may have to wait for ASRock_TSD on this one or alternatively you can create a support ticket and ask tech support directly.
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Posted By: stickman
Date Posted: 06 Oct 2015 at 5:23am
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Bump! I asked about this some time ago and ASRock_TSD suggested that some board from the 100 series would have bifurcation support. Is this still true? Or do I have to give up on this?
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Posted By: jb1
Date Posted: 08 Nov 2015 at 2:02am
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Another bump! I don't think the BIOS supports it right now, but Asrock seemed to imply that it might come with a future BIOS update?
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