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ROM hacking in the 68040 Macs
Posted by: frontein1 on 2025-05-21 22:48:36
The other annoying thing is I can't recall anything else about how that netboot floppy worked.
@adespoton it would be really cool to find a working netboot floppy to dissect!

So just to nail down this conversation with NETBOOT. I did some more testing, and can confirm no issues using this resource for a ROM/RAM disk driver.... as long as I change the resource & driver name to something else (ie, ROMDISK). Although I did not look at all the System Enablers and every version of the System file, it might be safe to assume that at least a few of them are patching NETBOOT during boot.
Posted by: BobDaAggie on 2025-08-04 10:16:56
Way cool project. So to recap, to use this, I need to add a ROM slot on my LC575 motherboard. Where would I get such a part?
Posted by: frontein1 on 2025-08-04 11:36:59
There are sellers that could sell you the ROM socket, such as JCM or CayMac. But how are your soldering skills? Admittedly for me I wouldn't trust myself to solder on a ROM socket. I would prefer to pay some money and send my board to a professional like CayMac to do the work 🙂
Posted by: eharmon on 2025-08-04 14:09:45
Way cool project. So to recap, to use this, I need to add a ROM slot on my LC575 motherboard. Where would I get such a part?
These work:

I've also sourced successfully from this Quest listing: https://www.questcomp.com/part/4/822021-2/76327736
Posted by: BobDaAggie on 2025-08-04 15:26:59
Perfect, thanks!
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