Valve’s latest Steam Machine console now supports external graphics cards through a community-developed hack. This modification allows owners to significantly boost gaming performance beyond the system’s built-in capabilities. Buyers interested in high-fidelity console gaming can now access PC-level graphics without replacing their hardware.
Community hack connects external graphics card to boost console gaming performance
The modification centers on replacing the internal M.2 solid-state drive with an M.2 to OCuLink ribbon cable adapter. This adapter connects to an Aoostar EG01 eGPU docking station, which houses an RX 9070 XT graphics card. The Steam Machine detects the external GPU automatically under SteamOS without requiring additional driver tweaks.
Display output requires a specific workaround because the system does not support official GPU upgrades. Users must connect both the Steam Machine’s native HDMI port and the eGPU’s HDMI port to the same television. This dual-cable setup ensures the system can route video signals correctly despite the internal storage removal.
Performance benchmarks show a clear divide between the integrated and external graphics solutions. The built-in RDNA3 integrated GPU delivers roughly 60 FPS at 1080p high settings in Crimson Desert. Connecting the RX 9070 XT pushes that same game to over 100 FPS on high settings. We looked at Steam Machine Mod Turns Faceplate Into earlier while tracking Valve hardware modifications.
This hack proves that the Steam Machine hardware can handle external GPU expansion even without official support. The trade-off involves losing internal storage capacity to accommodate the OCuLink adapter. The modification remains an unofficial community effort rather than a manufacturer-supported feature.
Source: TweakTown
