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Tekk
The Netherlands - EU

Posted Sun May 12, 2019 12:35 pm

Hiya,
Does anyone know a good tutorial on replacing the A4000 PSU Fan?

What are the needed dimensions anyway? How big is it. It's so noisy...

Thanks.

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obitus1990
New Orleans, LA, USA

Posted Sun May 12, 2019 2:06 pm

If you replace the fan with a silent one, makes sure it’s moving the same amount of air (CFH) as the original. Many of those silent ones don’t move as much as the old, loud ones, and, given how poor the airflow is inside the 4000 case is already (one of the worst designed, cheapest feeling cases commodore produced) you don’t want to reduce it.

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Tekk
The Netherlands - EU

Posted Sun May 12, 2019 11:53 pm

Thanks. Indeed something to take into account. Do you happen to know how many mm it is? 80mm?

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obitus1990
New Orleans, LA, USA

Posted Mon May 13, 2019 9:38 am

I believe it is 80mm. I'll check my case when I get home this evening to make sure though.

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Tekk
The Netherlands - EU

Posted Mon May 13, 2019 11:15 am

Thanks. Would be great.

What about the Noctua then? Seen here (https://youtu.be/2HJCK2SexSE?t=383) in a A2000 PSU fan replacement by Jan Beta. He has the Noctua NF-A8 ULN edition. It's a series of three where the ULN edition is the quietest.

ULN: 10.4dB - 1400 rpm
FLX: 16.1 dB - 2000 rpm
PWM: 17.7 dB - 2200 rpm

https://noctua.at/en/products/fan

And then there is something with the pins as well. Maybe it's better to get the three pin one.

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Tekk
The Netherlands - EU

Posted Tue May 14, 2019 2:50 am

Checked it myself and the dimensions are 80x25. Pretty straightforward so it seems. I'll let you know.. :)





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