Z270 Extreme4 PCI-Express Slot 2 not working

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   I recently purchased a ASRock Z270 Extreme4 motherboard for my new build. After building, I found that when the Radeon RX 570 was inserted into PCI-Express slot #2 (the top-most x16 slot), the board did not recognize any device as being plugged in. I used the on-board video and confirmed in UEFI. In the UEFI, the system browser did not show anything as being plugged into that slot. I know the card works, as I was able to insert it into slot #4 (the middle x16 slot) and it worked. 
Is this a problem with the board? The firmware? Is this by design?

Any help is appreciated.

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mistermudd Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 Jan 2018 Status: Offline Points: 3	Post Options Post Reply Quote mistermudd Report Post Thanks(0) Quote Reply Topic: Z270 Extreme4 PCI-Express Slot 2 not working Posted: 16 Jan 2018 at 1:47am
	I recently purchased a ASRock Z270 Extreme4 motherboard for my new build. After building, I found that when the Radeon RX 570 was inserted into PCI-Express slot #2 (the top-most x16 slot), the board did not recognize any device as being plugged in. I used the on-board video and confirmed in UEFI. In the UEFI, the system browser did not show anything as being plugged into that slot. I know the card works, as I was able to insert it into slot #4 (the middle x16 slot) and it worked. Is this a problem with the board? The firmware? Is this by design? Any help is appreciated.

careuno Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 16 May 2018 Status: Offline Points: 1	Post Options Post Reply Quote careuno Report Post Thanks(0) Quote Reply Posted: 16 May 2018 at 3:56am
	I have the same issue but in my case I got a Z370 extreme4 and GTX 1070 ti... I had to use slot 4 but there is no enough space and the heat is also a problem. No news from Asrock about this?? Edited by careuno - 16 May 2018 at 3:58am