GPU not regestered with PCI-E Riser

[Isaac_Hope55]

So i recently brought a Verticle gpu mouting bracket and PCI-E riser card. But after installing my computer refused to boot. My motherboards EZ debug led's where showing a cpu prblem. After some tinkering i got past that and the light moved to VGA. I thought it might be a faulty Riser so i got a new one from coolermaster this time (the old one was phanteks) and yet the same issue. I thought i might not be plugged in correctly but after reseeding the card and the riser over 15 times each i have found that not to be the problem. I tried both 16x slots on my motherboard and no change. I updated all drivers and even my motherboard BIOS. The PC seems to boot but just doesnt recognise the GPU. The fans are spinning and the EZ Debug light is still on VGA. Computer works completly fine with the GPU pluged directly on the Motherboard. I've searched everywhere and cant seem to find anything. Any help would be much apreciated.

Specs:
MSI MPG B550 Gaming Pluss

Ryzen 3600

MSI Ventus 3X 3070

16GB HyperX RGB Memory.

[Breeksta]

The 3070 is PCIe4.0 but the riser you got is probably PCIe3.0. 

For now you can go into BIOS and force your mobo into PCIe3.0 with the old riser cable while you get:
 Amazon.com: LINKUP - Ultra PCIe 4.0 X16 Riser Cable [RTX3090 x570 B550 RX6800 Tested] Shielded Extreme High-Speed Vertical Mount Gaming PCI Express Gen4 2020┃Universal 90 Degree Socket {30cm} 3.0 Gen3 Compatible: Computers & Accessories

Or try using no riser cable if possible.

 

[coderrquitsreality]

5 minutes ago, Breeksta said:

The 3070 is PCIe4.0 but the riser you got is probably PCIe3.0. 

Or try using no riser cable if possible.

 

The riser cable probably got broken, and it [riser cable] doesnt really affect the performance unless you're @LinusTech and run 15m+ of riser cable or @Isaac_Hope55is using a mITX case.

[Breeksta]

28 minutes ago, Isaac_Hope55 said:

I thought it might be a faulty Riser so i got a new one from coolermaster this time (the old one was phanteks) and yet the same issue.

 

[Quackers101]

there is seemingly a lot to the riser issue, either it being gen 3 and gen 4. To other issues like screws and arcing (use plastic washers can help).

All gen 3 PCIe might work better?

a video around some of the topic.