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Exam NCP-AII Topic 4 Question 18 Discussion

Actual exam question for NVIDIA's NCP-AII exam
Question #: 18
Topic #: 4
You are deploying a multi-GPU server for deep learning training. After installing the GPUs, the system boots, but 'nvidia-smi' only detects one GPU. The motherboard has multiple PCle slots, all of which are physically capable of supporting GPUs. What is the most probable cause?

Suggested Answer: C Vote an answer

Incorrect BIOS/UEFI settings are the most likely cause when GPUs are physically present but not detected. The BIOS controls PCle lane allocation and slot enabling. Reseating GPUs is a good first step, but if the BIOS is misconfigured, it won't resolve the issue. Insufficient power is also a possibility, but BIOS configuration is more common in initial setup.

by Armstrong at May 19, 2026, 02:14 PM

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