I installed this power supply in a 10 year old Dell Dimension 3000. The Dimension 3000 is known for being loud (the CPU doesn't have a direct fan), but even with the addition of a direct CPU fan, it was still noisy. This power supply has two fans. Some complain that it's noisy, but it actually pulls heat away from the rest of the computer. Not overly loud. This computer used to roar like a jet engine, but now it only has a silent fan. Getting 480 watts for this price is a lot.
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