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-- Fan Controller/Switch baybus for 48V fans --

post #1 of 9
Thread Starter 
As the title states I'm looking for a cheap fan controller or baybus that will power 48V fans. I bought 2 high power fans recently and didn't realize until I got them that they are 48V a piece rather than standard 12V doh.gif

I'm open to anything that will work, and I'm looking to find one for as cheap as possible. The only thing I was able to find so far was this.
-->> http://www.frozencpu.com/products/7715/bus-148/Lamptron_Fan-Atic_5_Port_Military_Switch_Baybus_-_Black.html

I think this would work? But its more expensive than I was hoping to spend. If anyone can link me to other possible solutions that would be cheaper I'd greatly appreciate it and +rep. Thanks
post #2 of 9
Do you need to run them at 48V? Can you post a link or some info about the fans themselves?

EDIT:
There is no 48V rail on the PSU. If they won't spin at 12V, don't bother because it'll be cheaper to return them and buy some 12V fans than any other option.
Edited by avesdude - 4/18/12 at 4:36pm
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post #3 of 9
Thread Starter 
Quote:
Originally Posted by avesdude View Post

EDIT:
There is no 48V rail on the PSU. If they won't spin at 12V, don't bother because it'll be cheaper to return them and buy some 12V fans than any other option.

Not sure if I can return them, I got them off ebay sad-smiley-002.gif. Worst case scenario I guess I'll just have to resell them at a lose. Thanks for the confirmation though. In case you wanted to know the fan model for w/e reason they are Delta FFB1248VHE
post #4 of 9
Yeah it probably won't spin at 12V.

http://parts.digikey.com/1/parts/1699781-fan-120mm-x-38mm-48vdc-ffb1248vhe-f00.html

The product info sheet is posted on there as pdf. The operating voltage for the fan model you reported is 28-56. If you wanted to, stepping from 12V to 24V via DC-DC adapter is a lot cheaper than from 12V-48V but I still think you're better off buying different fans. If you were to step up the voltage, you'd multiply the current by the same factor. Without accounting for the inefficiency of the DC-DC converter you're talking about 1A@12V per fan.

You could use an external AC-DC 48V converter if you really wanted to. I don't know how you'd throttle it, and you'd have to manually turn it off and on (and it'd take up it's own plug). http://parts.digikey.com/1/parts/2331767-conv-ac-dc-15w-48v-0-32a-pcb-vsk-s15-48u.html has something that might work for $25 each (would need one per fan). You might be able to find something cheaper.

Good luck with everything
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post #5 of 9
Thread Starter 
Just found an old post by a fellow OCN member named Moltar and he stated that his Delta Fans work fine with that baybus. Idk what to do right now, I'll buy it if I can confirm that it will 100% work but that one post from him is the only evidence I can find. Does anyone else have experience with this controller?

Link to his post, on the first page:
http://www.overclock.net/t/807856/12v-to-48v-converter-for-fans
post #6 of 9
Thread Starter 
Edit:

I think he mislabeled these fans in his post. Looking at newegg it looks like they are 12V but use 48w. I believe he was mistaken when he listed them as 48V. Looks like im still out of luck. who-let-rip-smiley.png
post #7 of 9

 

Quote:
Originally Posted by MistaDowner View Post

Edit:

I think he mislabeled these fans in his post. Looking at newegg it looks like they are 12V but use 48w. I believe he was mistaken when he listed them as 48V. Looks like im still out of luck. who-let-rip-smiley.png

 

I've heard of 12v Deltas running as low as 3v. So try these. You never know 'til you've tried them.

 

I had a pair of 24v San Aces once. Gave them away because of horrible clicking. But they ran fine at 12v.

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post #8 of 9
Quote:
Originally Posted by ehume View Post



I've heard of 12v Deltas running as low as 3v. So try these. You never know 'til you've tried them.

I had a pair of 24v San Aces once. Gave them away because of horrible clicking. But they ran fine at 12v.

Impressive!

Yeah man, just see if they'll spin on 12v.
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post #9 of 9
Thread Starter 
They won't at all, I've tried. The seller ending up giving me half my money back and let me keep the fans. Hopefully i can resell them now and make most of my money back.
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