When Advising a Customer on the Purchase of a New

Multiple Choice

When advising a customer on the purchase of a new power supply, you should explain that if the power supply runs at peak performance all the time, it will overheat. Additionally, power supplies can lose some capacity over time. Considering these conditions, you recommend that the customer purchase a power supply with a power rating higher than what the system currently uses.
How much more wattage over peak do you recommend the customer purchase?

A) 15% more
B) 20% more
C) 30% more
D) 40% more