ASRock H61 Pro BTC
#1
Information 
Is anyone using the ASRock H61 Pro BTC board?

I am having issues getting R9 290X's to be detected in the PCIE 1X slots.

Any idea on how to resolve this?
#2
Did you made modification for your riser? you need to solder wire to use 16x card on 1x slot.
#3
I am not using the H61 Pro however I have used a x1 to x16 riser without an issue, are you using a powered one?

This is what I used:
http://www.ebay.co.uk/itm/1x-to-16x-Powe...OC:GB:3160

Make sure you run amdconfig --inital and reboot, as I had issues with hashcat not picking my third 290x until I did that.
#4
I just discovered that one of the risers appears to be bad. I will need to order a replacement. But in the end I had to also change the settings in the BIOS, like use on board GPU and manually setting PCIE slot settings.

I will let you know how it goes once I get a new riser in.

Also, they are powered risers via molex connector and they do not require modifications.