Adjust the alignment of your GPU to improve port access for large cables
In some PC cases, the alignment of the GPU against the metalwork of the PC case can prevent some cables from accessing the ports. Some high performance DisplayPort cables can have quite a large connector shroud which is simply too thick to fit into the DisplayPort output of the PC. if some of the case metalwork is very close to the ports.
There isn't a great deal of adjustment in the position of the PC motherboard but there can be a small amount of adjustment possible in the position of the GPU itself. Our technicians will usually assemble the cards parallel to the IO plate dividers for neatness but it is possible to angle the GPU a few degrees in either direction to aid access.
The GPU is held in place by two screws at the rear. An example image is shown below but sometimes the retaining screws are inside the case chassis.
In some configurations, simply loosening the two screws and pushing the GPU slightly to the right is all that is needed. Sometimes there will be a third screw which will need to be loosened in the slot just to the right. Don't move the card by more than 2 -3 mm at the top edge. As a guide, we would suggest moving the top of the silver GPU bracket only as far as the edge of the next screw hole.
Then simply tighten things up again and try the monitor cables again. The outputs at the top of the GPU are the ones most likely to give more room for the larger cable connectors. If you have more than one cable and they are of different sizes, place the largest at the top and work down to the slimmest at the bottom (motherboard side).