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Author Topic: Removing the A4000 power supply fan?  (Read 10596 times)

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Offline A4000Bear

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Re: Removing the A4000 power supply fan?
« Reply #29 from previous page: October 15, 2017, 01:00:56 PM »
A fair bit of the fan noise comes from restrictions in airflow caused by the fan cutouts and louvres in the power supply. Cut them away and replace with wire guards which provide less air resistance. This will reduce noise as well as improve air flow. There are also new style fans that have quieter bearings and fan blades too.

http://members.iinet.net.au/~davem2/overclock/coola4k.html
 

Offline NorthWay

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Re: Removing the A4000 power supply fan?
« Reply #30 on: October 15, 2017, 10:30:19 PM »
Well, I have a https://www.quietpc.com/nf-a8-flx incoming so I'm looking for the best and/or easiest ways to swap out the old. The current fan is so much noisier than this pc it's not funny. (Which is _nothing_ compared to what my 2000 was like - even after having a "NoiseKiller" heatbased resistor that made it a lot more silent...)
 

Offline motrucker

Re: Removing the A4000 power supply fan?
« Reply #31 on: October 16, 2017, 04:11:35 PM »
All things considered, I would rather have a little noise, than burn up my Amiga. With fan technology today, it shouldn't be hard to keep your Amiga cool, without a screaming fan.
Back when I had an A4000, I used one fan, similar to this:
https://www.newegg.com/Product/Product.aspx?Item=9SIA68V46Y1204&ignorebbr=1&nm_mc=KNC-GoogleMKP-PC&cm_mmc=KNC-GoogleMKP-PC-_-pla-_-Case+Fans-_-9SIA68V46Y1204&gclid=EAIaIQobChMI3pX_6rT11gIVUwaGCh1DdgJQEAQYBSABEgIQcvD_BwE&gclsrc=aw.ds
and never had a problem - or much noise.
A2000 GVP 40MHz \'030, 21Mb RAM SD/FF, 2 floppies, internal CD-ROM drive, micromys v3 w/laser mouse
A1000 Microbotics Starboard II w/2Mb 1080, & external floppy (AIRdrive)
C-128 w/1571, 1750, & Final Cartridge III+
 

Offline NorthWay

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Re: Removing the A4000 power supply fan?
« Reply #32 on: October 19, 2017, 01:23:54 AM »
I ended up just cutting the wires to the old fan near the pcb and squeeze the cable together with the other cables coming out of the PSU, and using a supplied 3-pin to molex converter to power it.

That was much smoother and less painfull than expected!
 

Offline klx300r

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Re: Removing the A4000 power supply fan?
« Reply #33 on: October 19, 2017, 02:29:18 AM »
Quote from: NorthWay;831779
Well, I have a https://www.quietpc.com/nf-a8-flx incoming so I'm looking for the best and/or easiest ways to swap out the old. The current fan is so much noisier than this pc it's not funny. (Which is _nothing_ compared to what my 2000 was like - even after having a "NoiseKiller" heatbased resistor that made it a lot more silent...)

cant go wrong with the Noctua NF fans, top quality and air flow is great in my full A4000
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Offline QuikSanz

Re: Removing the A4000 power supply fan?
« Reply #34 on: October 19, 2017, 03:57:30 AM »
Quote from: klx300r;831928
cant go wrong with the Noctua NF fans, top quality and air flow is great in my full A4000


Should get one the right size for my 2000. Probably make a big difference.