Z270 Extreme4 PCIE Slot
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=4739
Printed Date: 26 Jul 2025 at 9:09am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Z270 Extreme4 PCIE Slot
Posted By: jaydub
Subject: Z270 Extreme4 PCIE Slot
Date Posted: 01 Apr 2017 at 2:44am
" rel="nofollow - I have a Z270 Extreme4 board. I tried installing a Vantec firewire expansion card into PCIE4, which is a 16x slot. However, BIOS doesn't recognize it as inserted. If I install the card into any of the 1x slots, BIOS does recognize it. Is there something special I need to do to get a 16x slot to recognize a 1x non-graphics card? In BIOS, the PCIE slots are all set to "Auto".
Update:
I'm being told by ASRock tech guy Eric that 16x slots can only be used by graphics cards. How is that possible? So if I choose only one graphics card, then I only have three slots for various expansion cards? That can't be.
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Replies:
Posted By: NM Accoutant
Date Posted: 24 May 2017 at 11:42am
I have the Z270m-Pro4 board with an Intel 750 in PCIE4. Although I ran into problems with BIOS version 2.0, when using version 1.40 that NVME drive is recognized and boots from that slot. The documentation for my board states "*Supports NVMe SSD as boot disks" in relation to the PCIE4 slot which is an X16 slot.
Thus I think the information you received from that technician is incorrect.
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