is there such a power supply?

[trizzm]

Hi, i'm looking for a relatively silent 480w-ish PSU that supports PCI-e, has sleeving and quick release molexes (don't have to but always a plus) and most importantly has the smartfan feature that i saw once that keeps your fans running for two minutes after you shut down your PC. anyone know any like that? thanks

 

[sobelizard]

What's the deal with a fan running for two minutes post-shutdown?

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[etp777]

Cools off the PSU(and even internal) components. If you jsut shut down, particuarlly after a long period of gaming, etc, all these components are still gonna be nicely hot, and you've just shut down the fans on all of them.

Similar to way some high performance cars(friend's 300ZXTT comes to mind), keep the cooling going for a bit after he turns it off, keeps the turbos from behind damaged from excess heat on shutting it down.

 

[etp777]

BTW, Enermax Noisetaker 485 is probably closest match to what you're looking for. Run an older noisetaker 420 in my system, love it. Nice and quiet.

 

[sobelizard]

Would seem to be rather ironic. Fans/cooling to cool the components while they are running - fans/cooling to keep running as the heat from the components dissipate. Does not seem to be any benefits other than peace of mind. If the source of heat is cut at the same time as the cooling, it would seem safe. Unless of course, there was an pre-existing OVER heat problem.

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[etp777]

Heat dissipation is not instantaneous. So all turning it off dooes it keep it from creating more heat, but the heat already held in the capacitor, heatsink, whatever, is still there, and you've just turned off the fan that helps dissipate said heat. That's why the smart fan function is there, to dissipate any residual heat which anything such as that is going to have.

 

[jammydodger]

Antec Neopower 480w, sharkyextreme recommend it in their high end system this month <A HREF="http://www.sharkyextreme.com/guides/EGBG/article.php/3494656" target="_new">http://www.sharkyextreme.com/guides/EGBG/article.php/3494656</A>.

 

[DeathClock]

Yes, just like with a car. Fans on the Radiator will still be running when its very hot (after stepping the car on its tail, or in hot weather). Not cooling it would damage the engine and other components. Thats why I always keep my PC running on idle for a while when its running hot, before shutting it down.

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[sobelizard]

The temp difference between a car and a computer are quite different. In the case of autos, heat causes rapid expansion and possible serious damage. I have yet to see a pc with a 'working' cooling system start heat related expansion of components upon shutdown. If you have any pics, I'd love to see it.

Projectors come to mind when I think of continuous cooling after power down. Of course, that's extreme heat generated in a fragile glass bulb. I see the benefits in the pc application but not a requirement.

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