GTX 960 no video with riser card

[Hawth33]

I am having an issue with an SFF build, which occurs on my ASUS GTX 960 mini when using a riser card. Everything works fine when connected directly to the motherboard's PCI Express 3.0 16X port, but when connect with a riser cable, there is no video output.

I know the card is getting power since in both instances the power indicator light next to the 6 pin power connector on the gpu is lit.
I have tried messing with the BIOS, making sure PCI Express is the primary video output, and changing from gen3, gen2 and gen1, but none of that made a difference.

Build Specs:
CPU: Intel Core i3-4130T 2.9GHz Dual-Core Processor
Motherboard: ASRock Z97E-ITX/ac Mini ITX LGA1150 Motherboard
Memory: G.Skill Sniper Gaming Series 16GB (2 x 8GB) DDR3-1600 Memory
Storage: Samsung 850 EVO-Series 500GB 2.5" Solid State Drive
Video Card: Asus GeForce GTX 960 2GB Video Card
Power Supply: X7-ATX-500 500W High Power 24PIN DC ATX Power Supply with Dual 12V Output Channels

 

[kanewolf]

Maybe your riser can support the power required from the PCIe bus that the 960 expects. Too much current would result in a voltage drop which would shut everything down.

Is this a flexible riser or a circuit card type? How long is the riser/extension?

 

[Hawth33]

Maybe your riser can support the power required from the PCIe bus that the 960 expects. Too much current would result in a voltage drop which would shut everything down.

Is this a flexible riser or a circuit card type? How long is the riser/extension?

I have tried 2 flexible risers

The HDPlex silicon riser: HDPLEX Silicon PCI-Ex16 PCIE 3.0 Flexible Riser Card 18cm Length https://www.amazon.com/dp/B016P6YDUA/ref=cm_sw_r_cp_api_smEqxbHPJDWHH

And this one from Amazon:
PCIE Micro PCI Express 16X Riser Card Flexible Cable Extension Cable 15cm https://www.amazon.com/dp/B00D79EV0G/ref=cm_sw_r_cp_api_3lEqxb3M1MBN7

 

[kanewolf]

Have you tried the one with the supplemental power connector -- http://www.amazon.com/PCIE-Powered-Flexible-Extender-Bitcoin/dp/B00GUKRX6S/ref=pd_sim_147_2?ie=UTF8&dpID=410l0gr%2BvKL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=1RW8FY7VQCC8R170YFYR

But you are doing something that the motherboard was never designed to do so there is no guarantees ....

 

[Hawth33]

Have you tried the one with the supplemental power connector -- http://www.amazon.com/PCIE-Powered-Flexible-Extender-Bitcoin/dp/B00GUKRX6S/ref=pd_sim_147_2?ie=UTF8&dpID=410l0gr%2BvKL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=1RW8FY7VQCC8R170YFYR

But you are doing something that the motherboard was never designed to do so there is no guarantees ....

What if i use two risers to extend even further? Would i only need one with the power connector?

 

[kanewolf]

There isn't a specific length that I can find for PCIe 3.0. But several sites list 8in as max. So the 7.4 inch length of the cable I listed would be max. You can't successfully use two.