**Hi threeD Printers**,

this fan mount will allow you to mount two 40mm cooling fans in place of unused PCI slot covers in your PC. This design is using two open PCI slots in your computer case. It's designed to exhaust hot air from a computer case underneath the GPU. But you could also use it to blow cold air into your case. In my pc case exhausting air proved to be better setup (lower GPU temps). But you would have to test it for your computer case and airflow setup (positive vs. negative air pressure). If you decide to use it to blow air into your case I would recommend you fit a dust filter. Otherwise, your case gets dusty very quick.

**What to print** I designed two versions one compatible with Noctua anti vibration mounting the other with threaded inserts.

***Noctua Mounting*** For mounting the fans I used anti vibration mounts from Nocuta: NA-SAV4, NA-SAV3

Also works with the anti vibration mounts included with NF-A4x10, NF-A4x20 fans. >

***Cable Management***

PCI_Slot_Screw_Cover.stl
Nocuta_Mounting_Cable_Management.stl
Noctua_Mounting_Cable_Cover.stl

***Without Cable Management***

PCI_Slot_Screw_Cover.stl
Nocuta_Mounting.stl

***Threaded Insert Mounting*** If you print the threaded insert version you can use M3 screws to mount the fans. The threaded insert version is designed for M3 (4x5mm) threaded inserts. If your M3 inserts are too long you can cut them to length. >

***Cable Management***

PCI_Slot_Screw_Cover.stl
Threaded_Insert_Mounting_Cable_Management.stl
Threaded_Insert_Cable_Cover.stl

***Without Cable Management***

PCI_Slot_Screw_Cover.stl
Threaded_Insert_Mounting.stl

The versions with cable management need more space than the versions without cable management. So if you're space constrained use the bracket without cable management. You clip the PCI_Slot_Screw_Cover into the fan holder bracket. (see picture above)

**Fans** Designed and tested with Nocuta NF-A4x10 fans. NF-A4x20 (20mm thick) fans from Noctua should also work but I didn't test them.

Also works with 40mm fans from other manufacturers.

**Installation** You install the fan mount bracket like you install a GPU. Remove two PCI Slot Covers -> insert the fan mount bracket with installed fans -> screw the bracket to the case Plug the 4-Pin fan header into the mainboard. I used a Y-Splitter to power both fans from one mainboard fan header.

**Software** I use Fan Control to control the fan speed of the 40mm fans in relation to the GPU Core temperature. I added a custom fan curve (see screenshot above) that the 40mm fans only start spinning when the GPU hits a temp of 55°C. Below that they turn off and stay complete silent. At 75°C the fans spin at 70%.

You can safely use PLA. It will not deform or melt. The air in your computer case or the case itself will not reach 55 - 60°C. If your exhaust air temp reaches 55 - 60°C you will have a lot more serious problems than a deforming fan bracket.

**Modify** The design can easily be resized and customized with the provided Fusion360 (.f3d) file.

Happy printing!

Found 31 3D-models for “PC Cab” across many websites

MacBook Pro Retina Connection Lock

MacBook Pro Connection Lock

Cooling for TV Cabinet

Dual Serial cable bracket for half-height PC slot

PCIe Cover (Blank & GTX 1080 Version Inc.)

Speaker Cover Grille Mount Holder Bracket for Logitech Z333 for MAME Retro Arcade Cabinet, Etc.

GPU Power Track

EK Evolv X Distro Plate Pump Cover

Mouse Cable Holder

PCI Fan Mount for 40mm Fans

AIO Cooler Tube organizer "roller coaster"