● Covered by 1 source · 1 reportLow impact1 neutral
Modder connects Radeon RX 9070 XT eGPU to Steam Machine, achieves over 100 FPS in Crimson Desert
Key points
- Radeon RX 9070 XT eGPU connected to Steam Machine.
- M.2 to OCuLink adapter used for eGPU connection.
- Boot drive moved to USB-C to NVMe caddy.
- Achieved over 100 FPS in Crimson Desert on High settings.
eGPU Integration on Steam Machine
A Redditor, Large_Customer_3840, successfully integrated an AMD Radeon RX 9070 XT external GPU (eGPU) with a Steam Machine. The process involved fitting an M.2 to OCuLink adapter into the Steam Machine, which then connected to an Aoostar EG01 eGPU dock housing the graphics card.
Addressing Hardware Limitations
The Steam Machine's single M.2 PCIe 4.0 NVMe slot, typically used for the internal SSD, necessitated a workaround. The boot drive was relocated to a USB-C to NVMe caddy and connected to the machine's USB 3.2 Gen 2 (10 Gbps) port, allowing the M.2 slot to be used for the eGPU adapter. Physical modification to the Steam Machine's chassis is required to route the OCuLink cable externally.
Performance and Setup
Upon connection, the Radeon RX 9070 XT eGPU was immediately recognized as the primary display adapter. The setup enabled the Steam Machine to run the game Crimson Desert at over 100 frames per second using the High graphics preset, indicating a substantial performance increase over the machine's integrated graphics. The eGPU dock used, an Aoostar EG01, is an open platform without an enclosure or built-in power supply.
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Reporting from
A Redditor successfully connected an AMD Radeon RX 9070 XT eGPU to a Steam Machine using an M.2 to OCuLink adapter and an external dock, relocating the boot drive to a USB-C port. This modification allowed the Steam Machine to run Crimson Desert at over 100 frames per second on high settings, demonstrating a method to significantly upgrade the graphical performance of the compact gaming PC.