NR200 ATX PSU Bracket

thingiverse

# Motivation Although there exists the thoughtfully designed [official ATX PSU bracket](https://coolermaster.egnyte.com/fl/d18M4dx90F#folder-link/), I had trouble using the official design with my EVGA G3 850W (which is 150 mm in length): * Front mounting with PSU intake facing the front of the case leads to power cables running straight into the GPU. I could force the GPU in but it couldn't have been safe long term. * Front mounting with PSU intake facing the inside of the case leads to the PSU eating hot GPU exhaust, which in turn led to my PSU being the loudest component in the case... * If memory serves, the official design wasn't quite meant being mounted next to the motherboard. Even if it did support such mounting orientation, there wouldn't have been enough clearance for my GPU anyway when power cables are taken into account. Front mounting also gets in the way of the original side bracket. # This Design The goal of this alternative ATX bracket is to allow mounting an ATX PSU next to the motherboard with the PSU face plate being as high up as possible. From pictures you should see that the PSU face plate goes right up against the side panel clip. With this design, I am able to install the 150 mm long EVGA G3 850W with the power cables not touching the GPU if I tie them up well. Two versions are available: 1. A plain ATX PSU bracket 2. An ATX PSU bracket with a cable management compartment (usable but there exist some rough edges) Mounting holes are compatible with original standard case screws. Two mounting position are available as shown in the pictures. The high mounting position is intended to maximize GPU clearance but might interfere with top mount fans (see the Caveats section); the low mounting position will most likely interfere with long GPUs unless you have a very short PSU. Since the PSU is now mounted on the motherboard side, the original side bracket can be used as long as your CPU cooler also permits. This was a fun project, but in the end my EVGA G3 850W was too noisy to my liking despite now having fresh side intake. The G3 is known to be a noisy PSU so that is all understandable. I have ordered a new SFX power supply, which means that I'll most likely stop improving upon this ATX bracket. I would love to see your improvements! I have used onshape to create the design, the design can be found [here](https://cad.onshape.com/documents/5caeb74378e5e1339db82773/w/6a4371fb2bce4c58379718d9/e/3fcad78dadff1298512e9af6). There are various export options available for your further modification. # Caveats * The screw holes on the PSU face plate are conservatively on the smaller side, but your standard screws should be able to thread through. Feel free to enlarge the screw holes a little if you like. * In the high mounting position, the bracket will in most cases block the top 120 mm fan slot sitting above it. I was not able to install a Noctua A12x15 there due to the fan blades pressing against the PSU on/off rocker switch. * In the high mounting position, the bracket might also interfere with the other top 120 mm fan slot sitting above the motherboard. I was able to install a Noctua A12x15 on top of the motherboard, the fan housing just touches the PSU bracket. This means that regular fans which are thicker might run into the PSU bracket. You probably only need to shave off a couple of millimeters to clear that interference. Tweak the design to your heart's content. * Any air cooler that is wide enough to protrude out of the right side of the motherboard would probably run into the bracket. * Side mounted radiators would most likely run into the design with cable management cage (Option 2) as there is only ~4 cm clearance between the side bracket and the cable management cage. * The cable management cage could flex a little due to mounting forces. A more robust cage design or a smarter management cage cover might be able to counter that flexing, but I haven't bothered going to that length.