Searching replacement for small fans on Naomi motherboard

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OldFoo

Searching replacement for small fans on Naomi motherboard

Post by OldFoo »

I am trying to find a replacement/alternative for the two small fans on my Naomi 2 motherboard. They are worn out.



The ones that are currently installed are from SEPA, model HFB44B05A.. I cannot find these anywhere.. I did notice that some motherboards use other fans (SAN ACE MC fans from SANYO DENKI??). If someone can provide me with the model number for those, that would be great.



Anyone got any experience replacing these fans? Possibly using alternative brands (papst/sharkoon/etc)?
OldFoo

Post by OldFoo »

http://kirurg.org/arcade/?page=naomi-tech



looking for this aswell. You would need a 5v 3-wire fan, if the naomi doesn't get the speed reading, it shuts down, so a 2-wire wouldn't work.
OldFoo

Post by OldFoo »

Nice photo.. Yesterday, I spent an hour zooming in on vague photos of Naomi motherboards.. no need to zoom here :-)



This is the official page for the SEPA fan (the one that my Naomi2 has):



http://www.sepa-europe.com/hfb44bxxa.en.html



The problem with finding replacement will be the tachometer signal, IMO.. there are plenty of 5v (40 mm) fans available, but only a few have the third wire.. but there are different standards for this third-wire-signal..



I am afraid I might damage my precious Naomi if I mount a fan with incorrect specs..
OldFoo

Post by OldFoo »

Old thread so I'm sorry...but, folks might find this information useful on what fans they can use;

http://wiki.arcadeotaku.com/w/Replacing ... an#Naomi_2
OldFoo

Post by OldFoo »

I read that CPS2 boards use the same fan size as NAOMI,



http://www.neo-geo.com/forums/showthrea ... fan-change
OldFoo

Post by OldFoo »

skate323k137 wrote:I read that CPS2 boards use the same fan size as NAOMI,



http://www.neo-geo.com/forums/showthrea ... fan-change


That would only be the case fan which is similar, the Naomi main boards also have a CPU/CPU fan or in the case of the Naomi2 they have 2.
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