Aaron from One Maybe Two Retro returns with fresh energy as he shares his long-awaited SX-64 JiffyDOS upgrade, a project he has wanted to attempt since childhood. He walks through the process with clear enthusiasm, using his SX-64 as the perfect test bed for this long overdue improvement.
He starts by loading F-15 Strike Eagle from his stock drive to show the original performance. The slow wait quickly reminds him why the SX-64 JiffyDOS upgrade holds so much appeal. After a test with the EPYX Fastload cartridge, he confirms the difference in speed before diving into the hardware work.
Aaron opens the SX-64 with care and highlights the areas that require attention. He identifies the kernel ROM and the drive ROM, removes both, and handles the usual challenges that come with tight spaces and aging sockets. He talks through missteps with his usual humor, including the moment he realizes he briefly installed both ROMs backward. Once corrected, he moves methodically through the process until both JiffyDOS chips are in place.
After reassembling the system, he flips the switch and sees the new ROM spring to life. The directory loads faster. The drive responds quicker. The SX-64 JiffyDOS upgrade finally transforms his portable Commodore into the machine he always wished he had as a kid.
To finish, Aaron loads F-15 Strike Eagle again. The improvement is clear the moment the drive starts spinning. Game data streams in with fewer pauses, and the system feels much more responsive. Aaron gives it a full test run, locking in a few hits before calling the upgrade a success.
He wraps the video with a warm invitation to stick around for more projects, including future fixes and enhancements for the SX-64 and other classic machines. The video ends with his usual charm, complete with outtakes and a treat for viewers who stay to the end.
