ROM hacking in the 68040 Macs

[frontein1]

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.

 

[BobDaAggie]

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?

 

[frontein1]

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

 

[eharmon]

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:

https://68kmla.org/bb/index.php?threads/wombat-650-800-board-overclocking-limitations.38538/post-512408

I've also sourced successfully from this Quest listing: https://www.questcomp.com/part/4/822021-2/76327736

 

[BobDaAggie]

Perfect, thanks!