IPL Replacement

The original RTC/IPL Mask ROM IC on the Gamecube Mainboard

IPL Replacement

Technical details on the replacement can be found in YAGCD Section 2.8.3

Basically, the Mask ROM which contains the IPL could be overridden to load unsigned code from a separate flash chip on the EXI bus.

Actual IPL replacements

Several modchips existed which were full IPL replacements, but the Qoob and the Viper GC were the most popular.

Full list:

• tmbinc's original IPL replacement
• HyperBoot
• Ninjamod (rip off of tmbinc's work running GCOS)
• Qoob
• Ripper 3
• Viper GC