Can I put a new fan in my PC Power supply?

The fan in your power supply looks a lot like a case fan, doesn’t it? It might even be the same size? So, perhaps you’re thinking of cracking open the power supply and putting a faster or quieter one in there, or maybe even an RGB fan?

Well, we’re here to tell you, in no uncertain terms, you should not do this—and there are plenty of good reasons for that. So let's take a look at why trying to swap the fan in a PSU is such a bad idea.

Of the many reasons we alluded to mere moments ago, the first and foremost to get into is safety. PSUs are dangerous, and fully capable of murdering you if you’re messing around inside them. Even when they aren’t plugged in, the capacitors in the PSU can hold charge for a really long time, so it’s not safe, even if it looks fine.

If for some reason the risk of death is not enough to put you off, perhaps some other reasons might help. For example, when it comes to CORSAIR PSUs and probably most other brands of PSUs, you will totally and automatically void your warranty if you open the enclosure of your power supply.

Additionally, the connection a PC case fan uses won’t just automatically work inside a PSU. They are not designed to have user-replaceable fans, and as such won’t accommodate this approach even if you try, which you shouldn’t.

To surmise, don’t replace the fan in your PSU. It’s dangerous, not supported, and will invariably void the warranty. This goes for CORSAIR PSUs, and we’re sure that our competitors don’t want you messing around inside their power supplies either.

If you're asking this question because the fan in your PSU has broken, you might be able to get a new PSU under warranty. If you're outside of the warranty period, then safely dispose of the power supply, and buy another one.