An engineer is experiencing unexpected reboots on a graphics workstation when rendering complex 3-D models. The workstation is configured with a 115V power supply that is rated at 200W and connected t

Question

Options

• AThe UPS, as 115V is insufficient for the configuration and should be increased to 220V
• BThe power supply, as 200W is insufficient when the GPU is heavily tasked
• CThe graphics card, as it is the component that triggers the unexpected reboots
• DThe motherboard, as only standard PCI slots should be used for high-end graphics cards, not PCI

• A
  6% (1)
• B
  71% (12)
• C
  18% (3)
• D
  6% (1)

Explanation

A 200W power supply is severely undersized for this workstation's configuration. A high-core-count CPU under full load can draw 100–150W or more. A discrete GPU with an 8-pin PCIe power connector alone can consume up to 150W from that connector plus an additional 75W from the PCIe x16 slot - totaling up to 225W just for the GPU. Combined CPU and GPU load during complex 3D rendering easily exceeds 300–400W, far beyond the 200W PSU's capacity. When the PSU cannot deliver sufficient power, it triggers a protective shutdown, causing unexpected reboots. Option A is wrong because 115V is standard US mains voltage and is unrelated to wattage capacity. Option C mistakes the symptom (GPU under load) for the root cause. Option D is wrong because PCIe x16 is the correct and standard slot for discrete graphics cards.

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