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Replace Power Mac 6500/300 PSU with something quieter?

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First post, by AtomicPlayboy

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I recently replaced the original AT power supply in my IBM PS/1 with a modern ATX PSU and love how quiet it runs now. I'd love to achieve the same effect with my Power Mac 6500/300, which runs LOUD. I know that it won't be as simple as using an AT->ATX adapter, and I'm willing to roll my sleeves up and bust out a multimeter and soldering iron if necessary. Can anyone provide any suggestions as to how to modernize / silence this otherwise wonderful old Mac?

Reply 2 of 3, by Horun

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TheMobRules wrote on 2022-02-20, 19:25:

Can't you just replace the fan with something silent but that still produces good airflow (e.g. Noctua)?

Not familiar with that PSU, but fan sizes are usually standard.

Second that ! Early Mac PSU are diff than PC so best option is to replace the fan

Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun

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