Look here http://www.gamersnexus.net/hwreview...case-review-tear-down-disappointing?showall=1 Specifically this photo http://media.gamersnexus.net/images/media/2016/cases/gungnir/rosewill-gungnir-6.jpg You can see why you'd be unable to fully insert any HDMI cable because it would press up against the metal above the slot. What can be done? You'd have to cut that metal off to really get needed clearance there. Anyways I am using a DVI to HDMI cable but wanted to ask if you know of any HDMI cables with longer heads or possibly no jacket? I'm guessing this would work, it basically has no jacket to interfere with insertion http://www.ebay.com/itm/FPV-HDMI-Ty...Multicopter-/262114118136?hash=item3d073809f8
Actually, it looks to me like just about any HDMI cable could be fully inserted... Not sure how many cases/video cards that you have worked with, but the design of the expansion slots looks to be pretty much adhering to the industry standard. At any rate, you stated that you are using a DVI cable, so it does not seem to be an issue that you will need to contend with. As far as the FPV-HDMI cable you linked to - that HDMI connector looks as though it could easily short out or "press up against the metal above the slot" that seemed to perturb you in the first place!
Oops! I actually found one that fits properly. I got a Monster cable it is not squared at the end but rounded allowing for the room needed to fully insert in the case. It's a heavy cable but works and also has some sort of locking mechanism they claim is superior. Anyways I now realize a SLIM HDMI would've worked also