# I Couldn't Wait! I Made My Own DREAM Steam Machine Source: https://www.youtube.com/watch?v=2psXxetNpoo Recap page: https://rapidrecap.app/video/2psXxetNpoo Generated: 2026-01-26T18:36:45.021+00:00 --- ## Quick Overview The creator successfully built a custom Steam Machine prototype that outperforms 70% of current Steam-connected PCs in benchmarks, achieving stable 4K gaming with ray tracing enabled by incorporating modern, high-end components like an AMD Ryzen 7 9800X3D CPU and a PowerColor RX 9070 XT GPU into a modified 2013 Valve chassis, despite initial cooling challenges. **Key Points:** - The final custom Steam Machine build ran Cyberpunk 2077 at 40 FPS (4K, ray tracing off) or 10 FPS (with ray tracing enabled), with CPU temperatures staying around 74°C during testing. - The build used a semi-custom AMD Ryzen 7 9800X3D CPU (8C/16T, 30W TDP prototype spec, but using a modern 120W TDP chip in the custom build) and a PowerColor Reaper Radeon RX 9070 XT GPU (16GB GDDR6). - The original Valve Steam Machine prototype chassis from 2013 required significant modification, including cutting into the top panel to accommodate the larger, modern GPU cooling solution. - Initial prototype specs included a semi-custom AMD Zen 4 6C/12T CPU, RDNA3 28CUs GPU, 16GB DDR5 + 8GB GDDR6 VRAM, 512GB/2TB NVMe SSD, and an internal 110W TDP power supply. - The custom build utilized a PCIe x16 riser card (Silverstone RC02) to fit the large GPU into the console-sized chassis, which was originally designed for much smaller components. - The team also successfully integrated HDMI-CEC functionality using a third-party USB-CEC adapter, allowing the system to control the TV. - The final assembled unit, despite the custom modifications, maintained the sleek, console-like aesthetic intended by Valve, resting on 3D-printed orange feet. ![Screenshot at 04:48: The host demonstrates the custom 3D-printed plastic bracket designed to direct fresh air over the GPU cooler, highlighting a necessary modification to address the original case's poor airflow design for modern, high-power components.](https://ss.rapidrecap.app/screens/2psXxetNpoo/00-04-48.jpg) **Context:** This video documents an ambitious project where the host attempts to build a modern, high-performance gaming PC inside the original chassis provided by Valve for their failed Steam Machine initiative from 2013. The goal is to see if a modern, high-end PC can be made to fit the original compact form factor while maintaining performance, using contemporary components that far exceed the original prototypes' specifications. ## Detailed Analysis The video details the process of modernizing Valve's original Steam Machine prototype chassis (00:04) into a high-performance living room PC, which ultimately succeeds in running demanding modern games like Cyberpunk 2077. The process involved significant custom modifications, including cutting ventilation holes into the original chassis top panel (09:34) because the original design lacked adequate top airflow for the components used. The team installed a modern, powerful AMD Ryzen 7 9800X3D CPU (10:37) and a large PowerColor Reaper Radeon RX 9070 XT GPU (10:41), requiring the use of a Silverstone RC02 PCIe riser card (12:12) to fit the vertically oriented GPU inside the slim chassis. The team replaced the original, undersized CPU cooler with a low-profile Thermalright AXP90-X47 cooler (10:56) and used an SF850 Corsair power supply (14:17) due to the original internal unit being inadequate. The team also successfully integrated HDMI-CEC control using a third-party adapter (21:48) that plugs into a USB port, allowing the system to turn the TV on and off. Despite the necessary destruction of the original case design, the final result is a compact, powerful PC that runs Cyberpunk 2077 at over 60 FPS (with ray tracing off) and around 40 FPS (with ray tracing off but upscaled) while maintaining acceptable CPU temperatures (74°C), confirming the original Steam Machine concept's potential if it had been paired with modern hardware and better cooling solutions. ### Initial Prototype vs. Modern Build - The original 2013 Steam Machine prototype chassis is held up against the newly constructed unit - The original chassis had far less aggressive ventilation holes on the top panel compared to the custom-modded final version. ### Component Selection - The modern build utilizes an AMD Ryzen 7 9800X3D CPU and a massive PowerColor RX 9070 XT GPU, far exceeding the 2013 specs (which included an i7-4770/GTX 780 tier GPU) - RAM is 32GB DDR5 6000MT/s CL30. ### Cooling and Airflow Modifications - The original case's top panel required significant cutting to allow airflow to the new, larger CPU cooler and GPU - A custom 3D-printed shroud was created to direct airflow effectively. ### Connectivity and Features - The system supports HDMI-CEC via a third-party adapter, allowing the Steam Deck controller (or TV remote) to control the TV power - The system successfully booted into SteamOS Beta. ### Performance Results - Cyberpunk 2077 ran at a stable 40 FPS (4K, no ray tracing) and 10 FPS (with ray tracing enabled) on the modified hardware. ![Screenshot at 00:04: Host introduces the video by showing the original Valve Steam Machine prototype chassis.](https://ss.rapidrecap.app/screens/2psXxetNpoo/00-00-04.jpg) ![Screenshot at 04:41: The host shows the GPU riser card \(Silverstone RC02 PCIe Express X16 riser card\) needed to orient the large modern GPU within the slim case.](https://ss.rapidrecap.app/screens/2psXxetNpoo/00-04-41.jpg) ![Screenshot at 10:56: The modern, significantly larger Noctua-style CPU cooler \(Thermalright AXP90-X47\) is shown mounted on the mini-ITX motherboard, highlighting the size conflict with the original chassis.](https://ss.rapidrecap.app/screens/2psXxetNpoo/00-10-56.jpg) ![Screenshot at 15:07: The host highlights the ASRock B650E PG-ITX WiFi motherboard, noting its modern I/O, which is superior to what the original Steam Machine could support.](https://ss.rapidrecap.app/screens/2psXxetNpoo/00-15-07.jpg) ![Screenshot at 19:19: The modified Steam Machine case is shown running Cyberpunk 2077, demonstrating the successful integration of powerful modern hardware.](https://ss.rapidrecap.app/screens/2psXxetNpoo/00-19-19.jpg)