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themacmeister's picture
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Joined: 2009 Oct 26
WTF? Install Sys7->OS8.1 on an SE/30 !!!

http://home.earthlink.net/~gamba2/os8_se30.html

WOW!

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Joined: 2013 Apr 14

Yes it works. Your mac will become somewhat slower, but it works. After following that guide some years ago i decided to leave OS 7.6.1 on my SE/30. You may wonder also why there's a guide to install 7.5 if the mac SE/30 supports it natively.. well it's the IIfx ROM simm.

themacmeister's picture
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Joined: 2009 Oct 26

32-bit CLEAN!

Do you mean slower re: OS8/8.1 or actually makes the machine slower?

This is one of the more exciting hardware mods for Macs. I remember that the oscillator chip for overclocking was popular back in the day as well (not that I would ever attempt it, remembering the prices for Macs back then).

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Joined: 2013 Apr 14

Well, the machine will still run at 16MHz, but OS 8.1 is too heavy for it. It's like comparing the snappyness of System 6 against 7.5.5. If you have a PowerBook 1400 it's almost like comparing the boot time from OS 7.5 on it against OS 9. In fact, the SE/30 may boot faster OS 8.1 than a PowerBook 1400 running OS 9. Now i am tempted to do the experiment.