Normal
'Recommended' PSU ratings are basically "we have to assume you're using some brute-force-motherboard-auto-overclocked CPU, along with the world's dodgiest PSU that might sustain it's on-the-box rated power output for a few fractions of a second before it lets the magic blue smoke out" power ratings, to avoid said cheap-PSU-purchasers complaining when something inevitably fails. Actual power consumption ends up being far below that.Make sure to check the airflow ratings for the original fan and the Noctua fan if you do: reducing the airflow effectively downrates the safe power rating of the PSU.
'Recommended' PSU ratings are basically "we have to assume you're using some brute-force-motherboard-auto-overclocked CPU, along with the world's dodgiest PSU that might sustain it's on-the-box rated power output for a few fractions of a second before it lets the magic blue smoke out" power ratings, to avoid said cheap-PSU-purchasers complaining when something inevitably fails. Actual power consumption ends up being far below that.
Make sure to check the airflow ratings for the original fan and the Noctua fan if you do: reducing the airflow effectively downrates the safe power rating of the PSU.