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Replacement Naomi Fans?!

When selecting replacement fans (doesn't matter if it's the CPU, case or SUN PSU) always compare the datasheets. Noise level is not as important as CFM. If you're pushing a lot less air than the OEM fan, you increase the change of an early failure. This is especially true for the Sega Naomi 2 that runs much hotter than the Naomi 1.

For example, the Sunon HA60151V4 is a popular case fan (especially with CPS2) but when you compare the specs to the original (Panaflo FBA06T12H):

Sunon CFM: 12.7CFM
Panaflo CFM: 16.6CFM

A better solution is the EBM-Papst Inc 612F which is not as quiet as the Sunon (but quieter than the Panaflo) and is rated at 17.1CFM. It's also made in Hungary (and not China) so it's 3X the price, but I suspect 3X the quality. :)
 
Thanks again for marking this post.

I have a Naomi 1 and bought the Noctua CPU and the Gelid Case Fan.

How do I need to swap the cables for each of the fans and plug them into the Naomi motherboard?
 
darksofter said:
Thanks again for marking this post.

I have a Naomi 1 and bought the Noctua CPU and the Gelid Case Fan.

How do I need to swap the cables for each of the fans and plug them into the Naomi motherboard?
Click to expand...
You could cut the wires on both the new and old fans and solder them together or you can repin your new fans, which is what I did:

-Note the color order on the old Naomi fan connector (cpu)
-remove the pinned cables from both connectors: use a safety pin or a very small piece of metal to pry the catch on each pin (watch a couple YouTube vids on this)
-insert your new fans pins into the old connectors on the board
-fans should run full speed on boot
 
coming2u said:
You could cut the wires on both the new and old fans and solder them together or you can repin your new fans, which is what I did: -Note the color order on the old Naomi fan connector (cpu) -remove the pinned cables from both connectors: use a safety pin or a very small piece of metal to pry the catch on each pin (watch a couple YouTube vids on this) -insert your new fans pins into the old connectors on the board -fans should run full speed on boot
Click to expand...

Thank you for the help. I was looking for a way just to unplug each of the cables and plug it in to match + and - with the motherboard.
 
I'm just wondering why these fans are so loud on these systems?

I have a NAOMI coming in soon and if it's anything like a CPS2 or even an Atomiswave I'm going to want to reduce the noise lol
 
I was able to get to cpu and case fans. I have plugged in the noctua and the gelid fans and they fit in perfectly. I just don’t know the pin out for the fans. Can I keep on popping the cables from the connector off and change the order until I see that the naomi is powering them on. Or could this potential fry the motherboard?
 
Greetings fellow enthusiasts,

I looked at the pins and I was wondering if the original connector can be kept. I would just put the connector the pins of the replacement to the original connector.
 
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I was able to replace the fans!

I didn’t know that you connect leave the ground/trigger cable plugged in.

What is better? Having the case fan blowing in or out? Right now it’s blowing in but would blowing out be better?
 

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Case fan should blow out. The heatsink fan should blow down.
 
nem said:
Case fan should blow out. The heatsink fan should blow down.
Click to expand...
Thank you for confirming.

Now, I would like to look for the suitable screws and washer to fixate the Noctua fan. I have look somewhere in the beginning of thread. I think it was mentioned somewhere there.
 
Greetings Community,

Thank you for all your help and support.

I was able to get the screws the washers.

Everything has been spot on.

- Noctua fan
- Gelid
- M2 screws 20mm

I am super happy about this this mod.

The fans are quieter, not silent but still auditable.

IMG_6180.jpeg
 
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I was able to clean up the cabling of the Naomi.

Super happy about it.

Would love to have a Naomi 2 now.

Thanks again everyone for the help.

Just wanted to let everyone know that the help here is spot on and you don’t need to cut and splice any cables for this mod.
 

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Great thread.
leonk said:
When selecting replacement fans (doesn't matter if it's the CPU, case or SUN PSU) always compare the datasheets. Noise level is not as important as CFM.
Click to expand...
Found a nice fan for my PSU: 22,4 cfm, 19,16 dB(A).


My problem now is that I must have mis-read info on the power connector (I don't want to cut the wire on the original fan) as being of the JST PH/PN type, which is smaller as it turns out.
Is the correct connector a JST XH?
Thanks for confirmation/correction.
 
darksofter said:
I was able to clean up the cabling of the Naomi.

Super happy about it.

Would love to have a Naomi 2 now.

Thanks again everyone for the help.

Just wanted to let everyone know that the help here is spot on and you don’t need to cut and splice any cables for this mod.
Click to expand...
That Cpacom I/O Standoff is too crazy good. You care to share the files for this?
I really love to tidy up my setup aswell.
 
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