That right there is a complete show stopper, IMO, and a very strong indication that this particular product is unfit for purpose. This kind of an issue on a product with a price tag in the $4K range is unforgivable.
GPU manufacturers can keep a 2-slot card going flat out at 300W with their active cooling solutions. If VCU1525 cannot do the same with 150W power limit (1x 6-pin + PCIe at max 75W each), that indicates a very poor design. I am very glad I waited for initial feedback before I ordered mine, and in light of this I won't be ordering these at all.
Has anybody got a line on pricing and availability of the mentioned Bittware VU9P card that will be fit for purpose out of the box?
From no mention of modding in the first post to this is crazy.