Replacement 4pin PWM fan for a Enermax Eco80+ 500W

alexandrum77 · **Posted:** Wed Feb 17, 2010 2:08 pm

Hello everybody, i would like to know what options exist for the replacement of the Enermax Eco80+ 500W fan. All I know is that is a 4 pin PWM controlled fan. I saw the same fan on the Enermax site but it looks like it has only wires (3pins). Can you recomend other silent 4pin PWN fans I could buy?
Thnaks,
Alex

Mats · **Posted:** Wed Feb 17, 2010 4:25 pm

Hi and welcome to SPCR!!!

Here's some info about the fan used in some other models, and I guess there's a chance that it's the same for yours. I actually don't know.
Just be careful when choosing fan, and make sure that you can use a standard fan.

http://www.silentpcreview.com/article806-page6.html

Quote:

POSTSCRIPT, April 3, 2008: Not a PWM Fan

Here's something of interest that came from Enermax recently. It's regarding the fan, which shocked me with its smooth quiet performance in our review sample:

The new Enermax MODU82+ and PRO82+ series power supplies use a new patented SpeedGuard control circuit to achieve low fan RPM and extremely low noise without any negative effects. The patented control circuit requires a unique fan with a 4-Pin power connector, like a PWM fan. But this is not a PWM fan; it is a patented bi-voltage fan.

To clarify:

1. Enermax's new SpeedGuard control circuit does not require an expensive PWM fan; instead, they use a new special design fan which offers low RPM with higher CFM.

2. The new MODU82+ and PRO82+ series PSU fan cannot be substituted with a standard 3-pin fan or a 4-pin PWM fan. Doing so may cause the substitute fan to not run, run only at full speed, or be damaged. There is also a risk of damage to the SpeedGuard control circuit. The 4-pin configuration is not standard.

Conclusion: Do not modify ENERMAX MODU82+ or PRO82+ PSU models with any other fan (unless you have a very good understanding of electronics and you're willing to void the warranty). The fan control circuit in these new PSUs can only work with their own stock fan.

Your PSU is reviewed here, and I guess it's possible that the reviewer, Devon, wasn't aware of Mike's conclusion above.
http://www.silentpcreview.com/Enermax-Eco80

alexandrum77 · **Posted:** Wed Feb 17, 2010 5:09 pm

Thanks for the quick response. I was afraid of that. So this means that if the fan dies, I'm stuck. I already wrote Enermax asking them to point me to a replacement fan so I'll post their answer in case that there's somebody interested.

Parappaman · **Posted:** Thu Feb 18, 2010 3:56 am

I would bet the only replacement they will suggest you is to send the PSu out for an RMA. They surely won't recommend you a fan to swap the stock one.

By the way, why would you want to do that? The Eco80+ is a very quiet unit.

alexandrum77 · **Posted:** Thu Feb 18, 2010 7:23 am

I know, they are quiet units. But I never found a review about their reliability. If you look on newegg or NCIX you won't find consumer reviews on those. On newegg it's like nobody bought one. I was just wondering if there could be a replacement in case of a failure. I think I'll go with a Corsair TX650. I wasn't to clear on my first post. Sorry about that. I don't own a Enermax. I just wanted to know if there is a possibility for replacing the fan in case of a failure, because I've read that it's possible with other PSU's. I've found reviews for Enermax, but not consumer reviews, to have an idea of how reliable they are or not. Do you guys know somebody who owns a Enermax PSU?. I don't. I would like to hear their comments.
Thanks.

alexandrum77 · **Posted:** Thu Feb 18, 2010 11:20 am

Well, the response from Enermax is that they don't sell separate fans for it in case you need one. Too bad. I'm gonna buy the Corsair 650TX, I think it's quiet enough + it has a 5 years warranty.

maalitehdas · **Posted:** Thu Feb 18, 2010 12:42 pm

Well here you made the right decision. A company selling PSU with a special required stock fan - and not selling that fan as a spare part - is expecting you to buy a whole new PSU after warranty voids. (when it's broken, of course). Well, i don't suppose that is theonly company with that kind of policy nowadays.

Replacement 4pin PWM fan for a Enermax Eco80+ 500W

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