Hello.
I have just bought a Thermaltake x5 TG and this case is a joke.
Either the entire back panel was machined wrong or your manual is lying.
There is no mention what-so-ever in the manual that default psu placement will affect the pre-installed hdd cages.
But i'm missing about 6mm to mount it without wrestling things into place. Did someone forget to measure the height of a standard ATX power supply and just inserted a random value into the blueprints?
I don't know but this is incredibly disappointing after seeing two of the rubber grommets on the hdd caddies break for no reason.