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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: SidVicious on April 02, 2005, 02:52:56 PM

Title: Mount cooling fans
Post by: SidVicious on April 02, 2005, 02:52:56 PM

My Amiga is gettin' hot! How should i mount small cooling fans in a standard Amiga 1200 case? It's the regular small V cooling fans that fits perfect under the air ventilation on the top on the Amiga (over the F1-F10 buttons).
The problem is where i should get the power from.

Title: Re: Mount cooling fans
Post by: Stedy on April 02, 2005, 04:12:23 PM

I have soldered wires to the power supply filter ferrites (round iron cores with wire around them) where the power enters the A1200. Using a multi-meter, you can easily find the supplies you need.

What supplies do the fans need, +5V or +12V?

Title: Re: Mount cooling fans
Post by: SidVicious on April 02, 2005, 04:14:33 PM

12V. Didn't have the NUM LOCK on...that's why it only did get V in the text...;)

Title: Re: Mount cooling fans
Post by: Stedy on April 05, 2005, 10:31:10 PM

Sorry for the delay in replying.

You can tap +12V from the internal floppy drive connector, the yellow wire is the +12V, black is the 0VL.

The other option, is to tap the power where it enters the Amiga, as shown below.

(http://www.ianstedman.co.uk/Amiga-power-tap.jpg)

HTH

Ian

Title: Re: Mount cooling fans
Post by: SidVicious on April 06, 2005, 01:38:55 PM

I've manage to connect the fan by cut some wires. Hope it doesn't destroy something...it's connected like this:

http://img213.exs.cx/img213/364/fan3mk.jpg

I did just cut the black and red wire and connected the wire and red wire on the fan to them too. =)

Edit: Btw, thanks for the help!  :-)
Now it works good and looks good too.... :-P

Title: Re: Mount cooling fans
Post by: nex4060 on April 06, 2005, 03:28:57 PM

this depends on what you have installed in your A1200 but if your amiga is heavily loaded with extra hardware, then i would try to spare the motherboard for the extra load fans introduce and draw the power from the powerconnector (where the power enters the amiga).

Title: Re: Mount cooling fans
Post by: billt on April 06, 2005, 07:07:46 PM

Y-adaptor for floppy drive power is how I did the same thing way back in my A500 days.Hook your fan up to the second leg of the Y adaptor and you're good to go.

Title: Re: Mount cooling fans
Post by: SidVicious on April 06, 2005, 08:11:20 PM

The cut-of-a-wire tecniuqe worked good. But, the bigest problem is that the processor is UNDER the Amiga...on a expension board. That means, that it doesn't help much for the processor. Anyway, the rest of the amiga doesn't gettin' hot anymore. =)