UberGerbil's statement as quoted is about the motherboard circuit design around the PCIe slot. I had difficulty understanding exactly what he meant and thought end users need not be concerned about.
I took a close look at the mainboard and now understand exactly what his statement means.
I didn't write that -- EJ257 did, and then a nested quote tag got mangled so that it got mis-attributed
My appology and thank you for correcting my mis-quote.
. . an x1 (or x4 or x8) card has exactly as much power available to it as an x16 card. . . .
If I paraphrase the above based on my interpretation which does not seems correct is the following: The power available from the slot satisfies requirements of any PCIe card. Appreciate your clarification.