How can you estimate a PCs peak power consumption?

To estimate a PC's peak power consumption, you can sum the maximum power ratings of individual components, such as the CPU, GPU, motherboard, RAM, storage devices, and peripherals. Tools like power supply calculators can help by inputting the specifications of these components. Additionally, using a wattmeter during intensive tasks can provide real-time measurements of power draw. It's essential to consider overhead for power supply efficiency and potential future upgrades.