Z270 Extreme4 PCIE Slot

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   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.

Edited by jaydub - 01 Apr 2017 at 8:12am

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jaydub Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 30 Jan 2017 Status: Offline Points: 6	Post Options Post Reply Quote jaydub Report Post Thanks(0) Quote Reply Topic: Z270 Extreme4 PCIE Slot Posted: 01 Apr 2017 at 2:44am
	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. Edited by jaydub - 01 Apr 2017 at 8:12am

NM Accoutant Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 24 May 2017 Location: NM Status: Offline Points: 2	Post Options Post Reply Quote NM Accoutant Report Post Thanks(0) Quote Reply 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.