Final answer:
Intel CPUs that can be overclocked typically have a 'K' or an 'X' in their model number. When building an overclocking-capable PC, it is essential to include an effective cooling system and a high-quality motherboard that supports overclocking.
Step-by-step explanation:
To identify which Intel CPUs are capable of overclocking, look for processors with a "K" or "X" in their model number, as these signify unlocked multipliers that allow for overclocking. For example, the Intel Core i7-9700K is an unlocked CPU designed for overclocking. In terms of other components to select with overclocking in mind, a robust cooling system is crucial to manage the additional heat generated. Air coolers, closed-loop liquid coolers, or custom water-cooling setups can be considered, depending on the budget and desired overclocking extent. Additionally, a high-quality motherboard with a chipset that supports overclocking, such as the Z-series motherboards for Intel, is necessary. These motherboards are designed to provide the stability and power delivery needed for overclocking.