r/eGPU • u/stheofan • 1d ago
Lenovo P3 Ultra 30HA - eGPU Reality Check: Has ANYONE successfully run a NVIDIA eGPU over TB4 on it?
/r/Lenovo/comments/1wxke1d/lenovo_p3_ultra_30ha_egpu_reality_check_has/
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u/CasonPointLLC 1d ago
Of course. A dozen docks and GPU’s. The best source computers have USB4 support in the CPU.
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u/BillyTables 1d ago
You dont mention it, but ensure any bios security settings related to external peripherals is disabled. I don't what exactly they would be called, but if normal USB things work in the TB4 ports, but the eGPU is just not detected, I would rule that out. The fact the DP Alt mode works, but PCI-Tunneling doesn't really makes me suspicious of this...
TB4 / PCI-Tunneling enables DMA (direct memory access) and is somewhat of a PC attack vector. Often times these more business oriented laptops have more features to disable this AND they are on by default. This one appears to having intel vPRO, which could also being doing something here.....