So I had a problem: my Linux workstation was five years old, the CPU fans were louder and whinier then they used to be, and I kept getting out of memory errors while trying to work.
So obviously I rebuilt my Windows gaming machine instead. My little brother pushed me on getting the nice graphics card, to get XMP capable memory, and to get the unlocked 4770k instead of the 4770. (A month later, I did a similar build to replace the Linux workstation. Same CPU, cooler, motherboard, and case. Just running Intel integrated graphics there since the Mesa drivers have gotten decent enough and I don't have a GPU dependent workflow.) The build list is for exactly went into my Windows machine. The following notes are for both:
A note about the IO shield on the Maximus Impact: in the Windows machine, the IO shield sort of buckles and doesn't fit. The DirectKey button doesn't actually poke out properly. I saw people complaining about this in the Newegg reviews. However, in the second build this wasn't an issue and the IO shield fit perfectly. It turned out that the motherboard hadn't been seated correctly in the first box, and reseating the motherboard fixed it.
A note about installing the radiator in the 250D when using the Maximus Impact: you aren't going to be able to slide it up. Instead of removing the bar on the side in that video, you're going to have to put the radiator in from the top of the case, and hold it with the fans while you put in the mounting screws. Also, the 250D has two sets of screw holes and you'll want to make sure you're using the ones on the top-left ones, not the lower-right ones. It took me over an hour to figure out the first time I did this, but put it together on the first try on my second build.
You can probably see in the side view that there's some flex on the motherboard on the Windows machine. This seems to be a common complaint about the 250D, and has been reported to Corsair,
who claim that this shouldn't be a problem. Their one suggestion was to put washers between the card bracket and the chassis' backplane. I did this. Update: Corsair has an RMA where they'll send people a small little bracket to put between the case and the video card. I've added a picture of this applied to the case.
This case rats nests easily, as you can see in the side view. In the second bottom Linux build, I had significantly less cables, and still ended up with a bit of a rats nest. You'll probably end up stuffing your power cables for your SATA drives down there, too. It's even worse in the main top build, since there are a few extra PCI-E power cables. Using the tie-downs on the bottom and sides of the case helps, but I'm glad that the bottom half of the case isn't really visible through the dust screens.