ordered 10x 1m risers, they made it to France in 12 days (5 days FR to FR, weird!)
Seems to work fine, but only tested with 2 GPU as I fried a CS650M PSU last week while powering 2 R9_290 : worked fine for 2 days, then...PSU dead (3 GPU into the case)
GPU : 2/4 Asus R9_290
MB: Asus Crosshair Formula-Z
PSU : Fractal Design Tesla 1000W (80+ Gold)
I first tested with risers unpowered, it didn't boot
When powering risers through molex it's working very nice, however after 2 hours of testing, when putting cards back on the mobo, I noticed they were VERY hot, like really hotter than when into the case. I have to try unplugging the molex connected to the mobo to see if they get cooler.
Will definitely order more for next upgrade
These are powered risers, I don't know how many times I can say it, they have to be plugged in to work!! What are you talking about cards on the motherboard were hot? What molex plugged into the motherboard? Something isn't adding up here.
Okay, I won't try again to use these without molex plugged-in !
The cards seemed hotter to me than when I use them into the case : maybe it's just a better global cooling into the case (with 2 cards max of course, this case also has 11 fans, including CPU fans)
The extra-molex plugged into the motherboard is the one supposed to power PCI-Express cards. I think it's useless when using external powered risers, and it could be safely removed to avoid an overpower issue
Re-reading your previous posts, I understand it IS useless to use extra-molex on the motherboard when using powered risers, as you stated speaking about the BTC-Pro motherboard with 2 extra-molex.