A system administrator needs to install a GPU/DPU in a server.

The physical installation of high-performance NVIDIA components, such as H100 PCIe GPUs or BlueField DPUs, requires strict adherence to data center safety and hardware preservation standards. Option D is the only "100% verified" procedure because it covers three critical pillars: Power, Compatibility, and Safety. First, high-end GPUs can draw up to 300W-450W individually; verifying the server's PDU and internal PSU capacity is essential to prevent over-current shutdowns. Second, verifying cable compatibility (such as 12VHPWR or specific PCIe power 8-pin layouts) is vital to avoid electrical damage. Third, "Cold Service" (ensuring the server is powered down and cables are removed) is the standard for non-hot-plug PCIe components to prevent short circuits. Finally, wearing an ESD (Electrostatic Discharge) bracelet is non-negotiable when handling NVIDIA hardware, as static charges can destroy the sensitive HBM (High Bandwidth Memory) or the GPU die itself. Skipping ESD protection (as suggested in Option A) or performing the install while the system is "up and running" (as suggested in Option C) are leading causes of hardware infant mortality in AI infrastructure.