Intel Motherboards - x299 Taichi - using PCIE-4 causes crash

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x299 Taichi - using PCIE-4 causes crash

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=12263
Printed Date: 04 Aug 2025 at 11:41pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: x299 Taichi - using PCIE-4 causes crash

Posted By: horse
Subject: x299 Taichi - using PCIE-4 causes crash
Date Posted: 22 Aug 2019 at 10:06am

Whenever I plug anything into PCIE-4, the computer will crash a few seconds after logging in. So far this has included a 1394a card and a Slate Digital VRS8 audio interface card.

Are there any known reasons this might be happening? Happy to lay out my spec if more information is needed.

Replies:

Posted By: horse
Date Posted: 23 Aug 2019 at 1:09am

Here is my current spec: https://pcpartpicker.com/user/audiosprite/saved/#view=Gzhx6h

Posted By: CHnuschti
Date Posted: 23 Aug 2019 at 3:17am

There are settings in the BIOS for the PCIE Slots, set on "auto" by default, where you can choose Gen 1, 2, 3. Since PCIE 4 is a gen2 1x slot (contrary to all other which are gen3), there might be need to adjust that setting.

Posted By: horse
Date Posted: 23 Aug 2019 at 3:18am

Thank you CHnuschti I will try adjusting this!

Posted By: horse
Date Posted: 23 Aug 2019 at 10:49pm

Hi CHnuschti, just tried this, no luck I'm afraid. FWIW the only options were "1" and "2" for PCIE4 so I believe it is registering properly.

Posted By: CHnuschti
Date Posted: 24 Aug 2019 at 3:27pm

I have no additional idea what the cause might be. But AFAIK a PCIE 1x card should work in any PCIE slot, regardless if it is 4x, 8x or 16x.
Did you try this in order to narrow down the reason of the problem. If those cards work there except in PCIE4 it would clarify things.

Posted By: horse
Date Posted: 24 Aug 2019 at 10:10pm

I have tried in PCIE ports 2 thru 5, same results. My CPU has 44 lanes so they should all be functioning