PCI Fan Mount for 40mm Fans

thingiverse

**Hi threeD Printers**,</p>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.<br /> </p> **What to print** I designed two versions one compatible with Noctua anti vibration mounting the other with threaded inserts. </p> ***Noctua Mounting*** For mounting the fans I used anti vibration mounts from Nocuta: <a href="https://noctua.at/en/products/accessories/na-sav4">NA-SAV4</a>, <a href="https://noctua.at/en/products/accessories/na-sav3">NA-SAV3</a><br /><br /><strong>Also works with the anti vibration mounts included with <a href="https://noctua.at/en/products/fan/nf-a4x10-pwm">NF-A4x10</a>, <a href="https://noctua.at/de/nf-a4x20-pwm">NF-A4x20</a> fans.</strong> > </p> ***Cable Management (2.3 - 2.5 slots wide)*** <ul> <li>PCI_Slot_Screw_Cover.stl</li> <li>Nocuta_Mounting_Cable_Management.stl</li> <li>Noctua_Mounting_Cable_Cover.stl</li> </ul> </p> ***Without Cable Management (2 slots wide)*** <ul> <li>PCI_Slot_Screw_Cover.stl</li> <li>Nocuta_Mounting.stl</li> </ul> </p>***Threaded Insert Mounting*** If you print the threaded insert version you can use M3x12 cylinder head screws to mount the fans. The threaded insert version is designed for <a href="https://www.amazon.de/-/en/beihuazi%C2%AE-Threaded-Internal-Knurled-Embedded/dp/B082R28J4T">M3 (4x5mm)</a> threaded inserts. If your M3 inserts are too long you can cut them to length. > </p> ***Cable Management (2.3 - 2.5 slots wide)*** <ul> <li>PCI_Slot_Screw_Cover.stl</li> <li>Threaded_Insert_Mounting_Cable_Management.stl</li> <li>Threaded_Insert_Cable_Cover.stl</li> </ul> </p> ***Without Cable Management (2 slots wide)*** <ul> <li>PCI_Slot_Screw_Cover.stl</li> <li>Threaded_Insert_Mounting.stl</li> </ul> </p><strong>The versions with cable management need more space than the versions without cable management.</strong> So if you're space constrained use the bracket without cable management. You clip the <strong>PCI_Slot_Screw_Cover</strong> into the fan holder bracket. (see picture above) </p> **Fans** Designed and tested with Nocuta <a href="https://noctua.at/en/products/fan/nf-a4x10-pwm">NF-A4x10</a> fans. <a href="https://noctua.at/de/nf-a4x20-pwm">NF-A4x20</a> (20mm thick) fans from Noctua should also work but I didn't test them.<br /><br /><strong>Also works with 40mm fans from other manufacturers.</strong> <br /> </p>***With a high power draw/high heat output GPU, print it in PETG or ABS*** If you use it with a high power draw/high heat output or blower style GPU, you might have to print it in PETG or ABS. Some users reported deforming when printed in PLA. (Note: my print in PLA didn't deform with an AMD RX 6800) </p> **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 <a href="https://noctua.at/en/na-syc1">Y-Splitter</a> to power both fans from one mainboard fan header. </p> **Software** I use <a href="https://github.com/Rem0o/FanControl.Releases">Fan Control</a> 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%. </p> </p> **Modify** The design can easily be resized and customized with the provided Fusion360 (.f3d) file.<br /><br />Happy printing!<br />