AmigaOne

AmigaOne is a series of computers intended to run AmigaOS 4 developed by Hyperion Entertainment, as a successor of the popular Amiga series by Commodore International. Earlier models were produced by Eyetech, and were based on the Teron series of PowerPC POP mainboards. In September 2009, Hyperion Entertainment secured exclusive licence for AmigaOne name and subsequently new AmigaOne computers were released by A-Eon Technology and Acube Systems.

"A week ago we shared with you our joy as we move towards the rebirth of the Amiga desktop platform. The AmigaOne and AmigaOS4 are projects that have occupied almost every day of our lives for the last two years. For the community, the wait and the false dawns have been unbearable."
- Bill McEwen CEO Amiga Inc, Executive Update, April 12, 2002

Originally in 2000, AmigaOne was the name of a project for new computer hardware to run Amiga Digital Environment (DE), in later plans replaced by AmigaOS 4. Initially it was managed by Eyetech and designed by the German company Escena GmbH. The AmigaOne motherboard was to be available in two models, the AmigaOne-1200 and the AmigaOne-4000 as expansion for Amiga 1200 and Amiga 4000 computers. This would probably not have been actually possible. This AmigaOne project was cancelled in the design stage in 2001, mostly due to the inability to find or design a suitable northbridge chip. Eyetech, who at this point had invested funds into the project, were forced instead to license the Teron CX board from Mai to form the basis of the new AmigaONE computer range. First fruit of the partnership with Mai, AmigaOne SE, was announced to have connector for an optionally attached Amiga 1200, in order to use the old custom chips of an Amiga for backwards compatibility. However, no such solution was ever introduced.

The main difference between the ATX-format AmigaOne SE and XE was that the AmigaOne SE had a soldered-on 600 MHz PowerPC 750CXe processor, whereas the AmigaOne XE used a CPU board attached to a MegArray connector on the motherboard. While the MegArray connector is physically similar to the Apple Power Mac G4 CPU daughtercard connector, it is not electrically compatible. There were G3 and G4 options with a maximum clock frequency of 800 MHz and 933 MHz. The G4 module originally used a Freescale 7451 processor which was later changed to a Freescale 7455, both without level 3 cache. The G4 CPU runs hotter and requires a better heatsink than that supplied on some machines. Consequently, the G4 was often supplied underclocked to run at 800 MHz. In 2007 Acube offered 1.267 GHz 7457. The Micro-A1 was announced in two configurations, under the Micro-A1 I (Industrial) and Micro-A1 C (Consumer) labels. Only the C configuration was produced.

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