UEFI On ARM? More Likely Than You Think

December 4, 2025 by Arya Voronova 34 Comments

Now, Rock 5 ITX+ is no x86 board, sporting an ARM Rockchip RK3588 on its ITX form-factor PCB, but reading this blog post’s headline might as well give you the impression. [Venn] from the [interfacinglinux.com] blog tells us about their journey bringing up UEFI on this board, thanks to the [EDK2-RK3588] project. Why? UEFI is genuinely nice for things like OS switching or system reconfiguration on the fly, and in many aspects, having a system management/configuration interface for your SBC sure beats the “flash microSD card and pray” traditional approach.

In theory, a UEFI binary runs like any other firmware. In theory. For [Venn], the journey wasn’t as smooth, which made it very well worth documenting. There’s maybe not a mountain, but at least a small hill of caveats: having to use a specific HDMI port to see the configuration output, somehow having to flash it onto SPI flash chip specifically (and managing to do that through Gnome file manager of all things), requiring a new enough kernel for GPU hardware acceleration… Yet, it works, it really does.

Worth it? From the looks of it, absolutely. One thing [Venn] points out is, the RK3588 is getting a lot of its features upstreamed, so it’s aiming to become a healthy chip for many a Linux goal. From the blog post comments, we’ve also learned that there’s a RPi UEFI port, even if for a specific CPU revision of the Model 5B, it’s still a nifty thing to know. Want to learn more about UEFI? You can start here or here, and if you want a fun hands-on example, you could very well start by running DOOM.

Wooden ITX PC Case Smacks Of Sophistication

March 16, 2023 by Matthew Carlson 15 Comments

Computer cases have come a long way from the ugly beige boxes of the early 2000s. Still, if it was going to sit on his desk, [MXC Builds] wanted something with a little more class. His custom Ironbark ITX PC seems to fit the aesthetic nicely.

The case’s outer shell is ironbark wood cut at 45 degrees and joined for a beautiful waterfall edge (the wood grain seems to flow uninterrupted). The power supply was heavily modified to take a thinner but larger fan, and a new cover and intake grill were 3D printed. As there were no mounting holes on the bottom of the power supply, he printed a bracket with spring clips to hold the PSU securely. Next, he routed a PCI riser cable to the other side of the internal panel so the GPU could mount on the back. He cut custom cables to match up the lengths needed for every run. Finally, rather than placing the power button on the front or top, it was on the side in a custom bracket.

It’s an absolutely gorgeous build that packs some respectable hardware in a tiny space (7.9 L or ~482 in³). The use of 3D printed parts and careful planning results in an incredibly tidy computer that most would proudly display on their desk. It is an open-air case, and if you’re looking for something a little more enclosed, perhaps this mid-century PC might whet your appetite.

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This Computer Is As Quiet As The Mouse

May 22, 2018 by Anool Mahidharia 67 Comments

[Tim aka tp69] built a completely silent desktop computer. It can’t be heard – at all. The average desktop will have several fans whirring inside – cooling the CPU, GPU, SMPS, and probably one more for enclosure circulation – all of which end up making quite a racket, decibel wise. Liquid cooling might help make it quieter, but the pump would still be a source of noise. To completely eliminate noise, you have to get rid of all the rotating / moving parts and use passive cooling.

[Tim]’s computer is built from standard, off-the-shelf parts but what’s interesting for us is the detailed build log. Knowing what goes inside such a build, the decisions required while choosing the parts and the various gotchas that you need to be aware of, all make it an engaging read.

It all starts with a cubic aluminum chassis designed to hold a mini-ITX motherboard. The top and side walls are essentially huge extruded heat sinks designed to efficiently carry heat away from inside the case. The heat is extracted and channeled away to the side panels via heat sinks embedded with sealed copper tubing filled with coolant fluid. Every part, from the motherboard onwards, needs to be selected to fit within the mechanical and thermal constraints of the enclosure. Using an upgrade kit available as an enclosure accessory allows [Tim] to use CPUs rated for a power dissipation of almost 100 W. This not only lets him narrow down his choice of motherboards, but also provides enough overhead for future upgrades. The GPU gets a similar heat extractor kit in exchange for the fan cooling assembly. A fanless power supply, selected for its power capacity as well as high-efficiency even under low loads, keeps the computer humming quietly, figuratively.

Once the computer was up and running, he spent some time analysing the thermal profile of his system to check if it was really worth all the effort. The numbers and charts look very promising. At 100% load, the AMD Ryzen 5 1600 CPU levelled off at 60 ºC (40 ºC above ambient) without any performance effect. And the outer enclosure temperature was 42 ºC — warm, but not dangerous. Of course, performance hinges around “ambient temperature”, so you have to start getting careful when that goes up.

Getting such silence comes at a price – some may consider it quite steep. [Tim] spent about A$3000 building this whole system, thanks in part due to high GPU prices because of demand from bitcoin mining. But cost is a relative measure. He’s spent less on this system compared to several of his earlier projects and it let’s him enjoy the sounds of nature instead of whiny cooling fans. Some would suggest a pair of ear buds would have been a super cheap solution, but he wanted a quiet computer, not something to cancel out every other sound in his surroundings.