Fan duct for B&W G3

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Hokusai's picture
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Joined: Dec 20 2003
Posts: 256

I'm planning on removing the front speaker and replacing it with a small fan on my B&W G3. In order to direct this new airflow directly onto the heatsink, I'll need a fan duct to direct it there. I've looked online at several PC part stores and I've only found the larger ducts for 80mm fans. Does anyone know where I could find a smaller one?

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Macbook Pro 2.5GHz i5 / 16GB / SSD / eGPU GTX 960
Powerbase 360MHz G3 / 160MB / 80GB ATA / Radeon 7200

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Joined: Dec 26 2003
Posts: 585
;)

Build one! Laughing out loud

You like your Macintosh more than me, don't you, Dave? Dave? Can you hear me, Dave...?

olikicksmacs's picture
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Joined: Dec 20 2003
Posts: 252
Use...

Use some piping of some sort. Like a drinking straw, but bigger!

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iMac Tangerine G3 600mhz (Gary), Dell Inspiron 6000 (Delila)

JetStar's picture
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Joined: Dec 20 2003
Posts: 155
PVC?

Wouldn't pvc piping work? You know, the kind that is used for irragation and such. It comes in a lot of diamiters, and is fairly easy to cut with a hacksaw.
Jeremy

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It must be user error.

Hokusai's picture
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Joined: Dec 20 2003
Posts: 256
I thought I might have to...

make my own. I guess I'll have to go searching around my house.

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Macbook Pro 2.5GHz i5 / 16GB / SSD / eGPU GTX 960
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DanR's picture
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Joined: Jan 28 2004
Posts: 48
I've seen it done with cardbo

I've seen it done with cardboard and scotch (brand) tape... seems there should be a more elegant way.

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Joined: Dec 20 2003
Posts: 851
yep

I've made those and they work well. Just seal the edges with tape.

Dr. Bob

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Dr. Bob
Applefritter Admin

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Joined: Mar 12 2004
Posts: 57
Cool G3

OK, I have to ask... Do you Really need to cool your ZIF? Is this mod really going to help? Why not just "plop" a BIG old CPU fan on the heatsink and save your self some labor?

Just a question to save you some time...

Cheers

Hokusai's picture
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Joined: Dec 20 2003
Posts: 256
maybe...

Actually, my G3 does run quite fine with no heat problems, but I wanted to do something with it.

I did have a fan on it's heatsink, at one time, but it made some horrible noises. So, I took it off. I don't really have any other fans that will fit on there without causing problems closing the case.

As for my progress, I did manage to cut into the speaker assembly and get a fan to fit in it. That way, I don't have to tape it up there. Right now the flow is undirected. It doesn't seem to affect the temperature much, but isn't a very powerful fan anyway.

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Macbook Pro 2.5GHz i5 / 16GB / SSD / eGPU GTX 960
Powerbase 360MHz G3 / 160MB / 80GB ATA / Radeon 7200