Hi I ordered an x800xl that has not arrived yet and have recently been feeling some regret. I have been reading these cards do not (except for 1) have an external power connector. I understand many people have been using these successfully, but I dont understand why people say that these cards should have an external molex connector. Are they ok without one? I have read 75watts is the max the pci-e slot can give off, do these cards really need more? Also, I have yet to order my mobo, but was considering the Soltek SL-K8T890Pro-939. The thing about this motherboard is that it only has a 20 pin connector. Now, would this be a dangerous combo? With only 20 pins on the psu, and no external power connector for the XL? Thanks