What have I
almost done with an Early Intel recently?
I thought I’d give a nifty firmware hack covered by
@dosdude1 on his YT page, called, “
How to Change the Startup Chime on an Intel Mac,” a go with my A1261 MBP4,1. But why would I do that?
Because for one, why not? For another, with that era of Intel Macs, it doesn’t require any special equipment to dump the ROM, and also because the Quadra 840AV start-up chime always makes me smile (it’s more cheerful to my brain). Moreover, the start-up chime all of us know on pretty much every Mac made in the New World and in the Intel and Silicon realm is descended directly from the creation of the Quadra 840AV’s chime.
I say
almost done because I got hamstrung by the step to dump my system’s EEPROM contents into a bin file using ROMtool, as I was met with the following error:
View attachment 2145317
The only reason why I think my particular MBP could be having trouble is I have a green-dot board which I bought direct from Thailand. That board has not yet been assigned with a serial, and it’s also possible the EEPROM contents may not have the details it would need for ROMtool to parse and dump the EEPROM’s contents:
View attachment 2145318
In other words, I have kind of an oddball.
I do have the Apple utility for writing the serial permanently to the board (which, for those unaware, is a one-time deal to write that info to ROM and it cannot be changed — something which I did a few years ago with my A1138 PowerBook with its quirky af logic board, also not original to that machine), but that likely would not tell the EEPROM dumper anything new or useful to go beyond this error.
So I won’t be getting to change the startup chime on my MBP4,1, but I
almost got there!