I have a PowerLogix PowerForce7455 G4/1.2GHz Proceesor installed in my G4 AGP and until I up-graded to OS X 10.5 I had to install a unix boot helper, so perhaps John's suggestion is the answer. After up-grading to 10.5 the need for the PowerForce 7455 init was no longer needed. Cheers Harry ("`-''-/").___ ..- -''"`.. _ ( 6_ 6 ) `-. ( ``-._.-`) (_Y_.)' ._ ) `._ `.'``-..-' ` `_..`--'_..-_/ /--'_.' ,' ((((,-'' ((((,' (((.-' fl On Feb 23, 2012, at 5:28 PM, John Smutko wrote: > Hey Amir > > I think we've found the problem, or, at least, one of them. Which > Processor upgrade do you have? Here's the installation guide for > the 7447A and 7448 processors: > > http://eshop.macsales.com/tech_center/manuals/newertech/maxpower/nwtmang4max.pdf > > If you look at the troubleshooting section, you can see what > happened when you reset the PRAM. IF you have the CD you can just > follow the instructions and at least get the processor to work > properly again, the CD is bootable insofar as getting you to a > screen that will let you upgrade the firmware. > > If you don't have the CD, I can put up a disk image you can burn one > from, email me privately at the address in my signature. > > John > ------------------------------------------ > John Smutko > smutt235 at mac.com > > I'd like to take this opportunity to express my gratitude for the > fine job the folks at the NSA are doing > > On Feb 23, 2012, at 4:46 PM, Amir 'CG' Caspi wrote: > >> Hi Harry, >> >> Yes, one of the very first things I tried was resetting PRAM and >> NVRAM, including pressing the CUDA button. It's possible that such >> a reset might be the cause of the failure to boot, per John's >> previous email... I'll try to reinstall the firmware upgrade (if I >> can find it) and see if that fixes things. >> >> Thanks. >> --- Amir >> >> On Thu, 23 Feb 2012, Harry A. Freeman wrote: >> >>> Greetings, >>> >>> Have you reset PRAM and NVRAM. Also removeing the PRAM battery for >>> 5 minutes and then depressing the PMU (CUDA) button. The PMU >>> button is usually next to the PRAM battery. >>> >>> Cheers >>> >>> Harry >>> San Jose, Ca >> __ > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4