"How to edit and store the NVRAMRC for 133MHz bus
(1) Boot by holding down "Cmd" + "Opt" + "O" + "F" keys to enter the OpenFirmware terminal. (2) Enter the NVRAMRC editor. (<return> shows you should type "return" key) nvedit <return> (3) Type following script exactly (including spaces). " /" select-dev <return> 7efdc44 " clock-frequency" get-my-property 2drop ! <return> " /cpus/PowerPC,g...@0" select-dev <return> 1fca0554 " clock-frequency" get-my-property 2drop ! <return> 7efdc44 " bus-frequency" get-my-property 2drop ! <return> 1fbf711 " timebase-frequency" get-my-property 2drop ! (4) Type "Cntl" + "C" to exit NVRAMRC editor. (5) Save the script nvstore <return> (6) To enable the NVRAMRC, type this command. setenv use-nvramrc? true <return> (7) Reboot with new timebase constant. reset-all <return> use this command to successfully overclock any G-powered PowerPC processor to 533Mhz without soldering. This only works on sub-533Mhz processors. As for PowerPC G3, use PowerPC,7...@0 instead of PowerPC,g...@0. -- Sent from my PM G4 Sawtooth "It's anyway, anyhow, anywhere you choose it." -Me -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
