How to Vertically Mount a GPU in the CORSAIR AIR 5400

The CORSAIR AIR 5400 is an excellent case for cooling the latest graphics cards in their normal orientation, but what about vertically? Well, this is not possible out-of-the-box, but if you've got access to a 3D printer, there is a solution for you.

We have created a set of custom brackets to allow you to vertically mount a GPU, which are available for free via the official CORSAIR account on Printables.

We have two versions of the mount. These both fit the case but as you will see one is shorter than the other. The shorter one shown above is ideal for large GPUs but you will need a low profile or angled HDMI or DisplayPort cable as clearances are limited. The longer one allows more space between the PCIe backplate and GPU so you can use a normal cable.

When it comes to printing material we would suggest either PETG or ASA for due to the glassing temperature of PLA and you should use an infill of 25% or more (This should prevent the support arm from sagging over time.) The vertical mount in the image above was printed using Prusament PETG Signal White with 25% infill. due to the length of the GPU we did not print the anti sag bracket for short cards as it rests on the shroud.

• First, attach the vertical mount to the case. Remove the PCI backplate screws and the backplates then re-attach the mount using the same screws you have just removed.

• Now, from the rear of the case use two case fan screws and line up the clamping arm with the holes in the back of the mount and screw them down.

• Attach your PCIe Riser cable to both the motherboard and graphics card. (On early versions of the case it is recommended to run your monitor cables through the PCIe bracket holes first for ease of installation.)

• Finally, install your GPU into the riser cable and use fan screws to attach it to the vertical mount, if your card does not sit straight, loosen the screws slightly and adjust. If you're using the support arm, make use of the grooves to line everything up.

It's hard to argue with the bold statement created when you mount a GPU vertically, but given that the AIR 5400 wasn't designed for this, will doing so create any issues with temps and/or airflow?

On the one hand you should find that the VRM, RAM and m.2 temps end up a little lower, as there is now an airflow path behind the GPU going up the front of your motherboard.

On the other hand, now that the GPU fans have been rotated away from the intake fans at the bottom and towards the side panel, the GPU will run a little hotter. However, the difference shouldn't be all that critical, with our testing resulting in a 2°C to 4°C increase vs mounting the GPU in the normal horizontal orientation.

It is worth noting here that your mileage may vary as not all GPU coolers are created equal, but if you're worried that vertically mounting yours in the AIR 5400 will produce dangerously high temperatures, then relax. Your GPU will be safe.

Below you can see an example of a shorter GPU resting on the support arm.