Difference between GPU @ x16-x16 Riser or direct on Mainboard

[ammi84]

Hi,

i got my 5-GPU-Rig running last night
i had to put one GPU direct in the PCIe16 Slot (the other 4 work with x1-x16 Risers)

Does the 5th card work, when i put it in a x16-x16 (powered) riser for this slot or has it to be on the mainboard directly?

Thank you :-)

MB: ASRock 970 Ex4

[mirza92]

I have the same question

[ammi84]

i would try it myself but i don't want to buy a riser without knowing if it works or not