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Awesome! Thank you for the juicy technical breakdown, this is the sort of thing I live for! another firmware patcher worth looking into is the Gigadesign's firmware patcher as I noticed that one does not check for a specific BootROM version it only checks for certains within a BootROM, so we...

there was both, a "halt on unknown PVR" any CPU with an unknown to the BootROM PVR, if you put in a 7410 or 7455 you get the same result and a separate check that does check for the 7400 PVR where it then beeps at you, remove this, and you will see the G3 Blue and white's latest BootROM does...

BTW on this front, the Pismo's latest firmware is 4.1.9 which is well supported by most of the BootROM CPU upgrade firmware patches out there, I would try the PowerLogix Firmware patcher first, and then the GigaDesigns one :) tho of course I would always make a backup of the BootROM first

thats very cool to see, even just from a novilty perspective, just to push the G3 to its maximum limits, it would be fun to see one in an MDD, because they have a 167Mhz bus and all that :) what software things did you have to figure out in the end, was it BootROM patches or OS X side software...

this is where I really wish the forum software had a "like" button of some kind, its awesome to this finally come to fruition! :)

yall are overcomplicating things majorly for something apple already provides as a boot time service :) https://macfaq.org/software/startup.shtml cmd-opt-shift-delete-(#): Boot from a SCSI device on the SCSI bus other than the disk selected in the Startup Disk control panel. The optional...

OS X works by way of platform experts and kext/drivers, for example if ya look at Xpostfacto it installs "PowerSurgePE.kext" and that driver is the platform driver for the 7300-9600 machines, or you may notice when booting OS X on your Lombard theres a GossamerPE mentioned when it says "found...

Awesome! literally history in the making there! :)

interesting :) I know the G3 is a 60x only CPU, what im wondering is for those who want to do this swap themselves, was it a straight swap, or does one have to change some resistors to change the bus mode, or does the CPU/PowerMac automatically take care of that?

interesting that yours also freezes! I also did this swap a few years back https://forums.macrumors.com/threads/uncooking-the-sunflower-seeds-first-generation-imac-g4-repair-cpu-replacement.2230902/ and mine also freezes pretty soon after booting, but I always chalked that up to the fact I...

if you want to enable startup disk in MacOS X to show the OS 9 folder, just do an NVRAMRC script to append the MacRISC2 property onto the model identifier, this is what startup disk looks for when determining if to show OS 9 volumes, also on something like a PowerMac4,4 eMac it should enable you...

Oh awesome this is something me and @Daniël have been meaning to try out/have wanted to see done just for the novility of it, it is very awesome to see it works :) but I am also curious from a technical presepsctive, do Core Image ATI Radeon cards work? NVIDIA cards require a G4/Altivec to...

I can confirm that if you solder a 7410 to a G3 Beige ZIF card it will fry the L2 cache controller, not the whole chip that worked fine in another system, but just no more L2 cache. the weird thing is there is a aftermarket G4 ZIF out there 550Mhz and 600Mhz, from IIRC PowerLogix, that does...

Oh this looks like fun! Ill have to play with this at some point as an aside on the whole "9250" thing not all Radeon 9200 Mac Editions are identical there where at least 2 different versions, with different Device ID's, I know I own both variants and had a bit of a run around with them until...

ahh its still not quite right im afraid this is what you should do :) dev /cpus/PowerPC,G4 000c0206 encode-int " cpu-version" property unselect-dev and if you want to actually see the changes before and after you would want to do it like so dev /cpus/PowerPC,G4 .properties 000c0206...

BTW @Phipli I was just reading the page you made for it, and I notice your instructions for spoofing the CPU PVR are not quite correct, please refer to this post I made on MR on how to do it correctly :)...

did you do a .properties check after spoofing the CPU PVR to make sure the changes had indeed gone through? the checksum error is normal, but I note your trying that on an AlBook, so I think its hanging up on the GPU side of things, most later apple portables and AIO's dont have the GPU's NDRV...

I have a guide I put together here :) https://forums.macrumors.com/threads/mac-os-8-6-findings-and-ramblings.2021922/page-2?post=29711081#post-29711081

Sweet stuff! glad to see my modified ROM is being put to good use :) a few things to note: the MacOS8.6 ROM is quite picky about which Video card it will work with, for best results, use only an ATI Video card with a full ROM (this is why certain machines like Snow iBooks and iMacs fail to...

have you made sure the G4 Cube's firmware itself is full up to date? 4.1.9 is the latest IIRC I think only later versions of the firmware natively support the 7455, so something worth double checking