The Macintosh LC, LC II, and Macintosh Classic II do not use the Reekes chime, instead using an F major chord that just produces a 'ding' sound. A slightly lower-pitched version of this chime is in all PCI-based Power Macs until the iMac G3. He is also the creator of the iconic (or 'earconic', as he calls it) 'bong' startup chime in most Macintoshes since the Quadra 840AV. When Apple discovered this, he refused to change it, using various claims in order to keep the new sound intact. He recalls that Apple did not give him permission to change the sound but that he secretly snuck the sound into the computers with the help of engineers who were in charge of the ROM chips. It's a C major chord, played with both hands stretched out as wide as possible (with 3rd at the top, if I recall).' He created the sound as he was annoyed with the tri-tone startup chimes because they were too associated with the death chimes and the computer crashes. Reekes said, 'The startup sound was done in my home studio on a Korg Wavestation EX. Variations of this sound were deployed until Jim Reekes created the startup chime in the Quadra 700 through the Quadra 800.

Mark Lentczner created the software that plays the arpeggiated chord in the Macintosh II. The first sound version in the first three Macintosh models is a simple square-wave 'beep', and all subsequent sounds are various chords.

The specific sound differs depending on the ROM, which greatly varies depending on Macintosh model. The sound indicates that diagnostic tests run immediately at startup have found no hardware or fundamental software problems. The Macintosh startup chime is played on power-up, before trying to boot an operating system. On Macs running macOS Big Sur or later the startup sound is enabled by default, but can be disabled by the user within System Preferences ( Big Sur or Monterey) or System Settings ( Ventura). The classic Macintosh startup sequence includes hardware tests which may trigger the startup chime, Happy Mac, Sad Mac, and Chimes of Death. JSTOR ( November 2011) ( Learn how and when to remove this template message).

Unsourced material may be challenged and removed.įind sources: 'Macintosh startup' – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.

2009 macbook pro 3 beeps