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BadGoldEagle

SE/30, IIsi ROM, 32bit addressing woes

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Hi all,

A month or two ago I bought a GGLabs SIMM for my SE/30. I had the seller flash a custom image and I think something went wrong with the programming (the ROM image works otherwise fine with Basilisk II). The SE/30 freezes when the Floppy EMU is connected in HD20 mode and System 7.5 refuses to boot (sometimes 7.1 as well) even on 'real' hardware. 

 

I don't have a ROM programmer for this SIMM. Does anyone have one and is willing to flash this SIMM for me? All I wanted is the IIsi ROM with RAM check disabled, nothing else...

Thanks!

 

PS: I'm in Europe. 

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I found an archive of Gamba's website: http://home.earthlink.net/~gamba2/os8_se30.html. I did the modifications and the Mac is now booting fine. But now there's another problem...

 

I have 32megs of RAM in this machine and the system folder is consuming 27megs. I don't think this is normal. What should I do?

Edit: Apparently 32 bit addressing turns itself off every time I shut down the system... I don't have a PRAM battery but I thought the system kept the settings if it was still plugged in... I just rebooted it (without powering it off) and now the RAM usage is normal. 

 

@Cory5412 @Bunsen @wthww @Gorgonops Could you please change the title of this thread to "SE/30, IIsi ROM, 32bit addressing woes"? Thanks!

Edited by BadGoldEagle

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You still have to turn on 32bit addressing in the memory control panel, otherwise the system folder will show up as using up any RAM beyond the 8MB barrier.

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Yes, I knew that was the system's behaviour when 32 bit addressing wasn't on. I just thought it was on... System seems to be running fine now.

Screenshot.thumb.png.f13071e823a296be17246ddb4c156161.png

 

I just need to design an external battery holder now because I don't want to take it apart every time I want to use more than 5megs of RAM...

This is completely off topic but I thought about designing a holder that uses the security slot of the Mac as a support. If I make a fake battery with two terminals, slot it into the real battery slot, run some wires to the back of the case and insert the holder with a fresh battery inside the slot, I should be golden. That way, I can take it off whenever I'm not using it and not risking any leakage.. 

Edited by BadGoldEagle

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2 hours ago, BadGoldEagle said:

Could you please change the title of this thread to "SE/30, IIsi ROM, 32bit addressing woes"? Thanks!

Done!

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