Final answer:
To ensure compatibility with a high-end graphics card, a technician should verify the PSU's wattage rating and consider the efficiency rating. The PSU's 12V rail specification is critical for high-end graphics card power requirements. Additional aspects like kWh on an electric bill and the use of transformers relate to energy consumption and voltage conversion, respectively. The correct answer is option C. Output 115V
Step-by-step explanation:
Before purchasing a Power Supply Unit (PSU) for use in a computer with a high-end graphics card, a technician should verify the PSU's wattage rating. The wattage rating of a PSU indicates the maximum power the PSU can deliver to a computer's components. High-end graphics cards require a significant amount of power, and an insufficient wattage rating can lead to system instability or potential damage to components.
Additionally, efficiency rating could be considered since a more efficient PSU can reduce electricity usage, generate less heat, and potentially lead to lower energy costs. Aspects like the PSU's output 12V rail are important as well, as graphics cards primarily draw power from this rail.
The electric bill is usually given in kilowatt-hour (kWh), which represents the amount of energy consumed, not just power or current. A transformer, for example, is used to convert voltages and usually operates with AC voltage.