---
title: "Small form factor PC"
date: "2024-04-26"
---


I built a small form factor PC. The build is based on the [Minisforum BD790i](https://store.minisforum.com/products/minisforum-bd770i) which has an AMD Ryzen 9 7945HX. This CPU is physically identical to the desktop 7950X, but has lower power and slightly lower clock rate, meaning it draws about half the power while delivering 90% of the performance.

![Finished build.](https://i.dllu.net/2024-04-26-18-07-42_DSCF7913_934377e866f215b6a9f6f90f277d74fc79325b1e_2acd79e988b7b26b.jpg)

![Parts used (except the LEGO Porsche and the purple puppy)](https://i.dllu.net/2024-04-25-20-20-49_DSCF7906_4ce5a64467bcf03dc7bc46cc948db585f87fcc96_a0addf1097d54d25.jpg)

| Component | Name |
| --- | --- |
| Motherboard + CPU | Minisforum BD790i (AMD Ryzen 9 7945HX) |
| GPU | Asus ProArt Nvidia GeForce RTX 4080 Super |
| SSD | Crucial P3 Plus 4 TB |
| RAM | Crucial RAM 96 GB (2 x 48 GB) SODIMM |
| PSU | Corsair SF750 |
| Case | KXRORS S300 |
| Fan | Thermalright TL-B12 Extrem |
| PCIe Riser | Some random one (Jectse on Amazon) 200 mm dual reverse PCIE 4.0 |
| [12VHPWR cable](https://en.wikipedia.org/wiki/16-pin_12VHPWR_connector) | Another random one (JOYJOM on Amazon) |

Table: List of parts.

Putting it together was pretty smooth.
The GPU just _barely_ fits if I force it in. Otherwise, I'd have to remove one of the panels of the case, which is slightly more work.

The 120mm x 25mm Thermalright fan fits perfectly (i.e. barely) in the case.
It's also loud since it goes up to 3000 rpm so I had to change the fan settings in BIOS (which doesn't let me do a detailed fan curve).
For any given RPM, it is quiet compared to the competition (roughly the same as the Arctic P12 Max and Noctua A12x25 according to some reviews).

![Finished build left side.](https://i.dllu.net/2024-04-26-18-04-59_DSCF7911_dae54ea082f959f9dd90e52eb226df90e360e5af_d45610d97d817b88.jpg)

![Left side inside. Look at the tight fit for the GPU.](https://i.dllu.net/2024-04-26-18-05-52_DSCF7912_c06fea1075c3e5bc6340f7a89f13b29580d031bd_a1f285d6bfb5bacb.jpg)

![Right side inside.](https://i.dllu.net/2024-04-27-11-30-04_DSCF7916_ca1878f89ff52c5533a8f79c398ec9e563f9d847_9e04e70c5f840f46.jpg)

![Right side outside.](https://i.dllu.net/2024-04-27-11-33-04_DSCF7917_fbbed32233ffcb34d3bc9a8c9507738aed22c3d9_326b7135248023ff.jpg)

![Neofetch](https://i.dllu.net/2024-05-15-12-56-33_20bfc1c3179036b2.png)

It works pretty well.
The temps are about 90 degrees C for the CPU when all cores are under maximum load (compiling C++).
Framerates are great on Helldivers 2.