I heard no more than 4-5 per string coming off the PSU. Me, I am going to be using 3 per power pcie plug. I am curious now, which PSU were you using? brand make/model wattage.
It's a Thermaltake Toughpower 875W. So, it has 4 PCIe ports. So, I'm down to 3 now. Even if I could use the one that fried I wouldn't trust it.
I just ordered another spliter, so I'll have 5 on 2 PCIe ports, and 2 on the last one. Right now I have 6 with fans that have been modded to run at half speed. So I'll have one at the top of the stack, and one at the bottom. And, 3 120mm fans running over them.
Time to re-organize my wires. I have everything on 2 shelves in my server rack. Still trying to make it all nice and neat, and good air flow.