  pegasos is a microatx motherboard powered by a powerpc 750cxe or powerpc 7447 microprocessor, featuring three pci slots, one agp slot, two ethernet ports (10/100/1000 & 10/100), usb, ddr, ac'97 sound, and firewire. like the powerpc macintosh counterparts, it boots via open firmware. for hard disk drive booting the open firmware requires an rdb boot partition that contains either an affs1 or ext2 partition."gentoo linux handbook", 2008-05-02, retrieved on 2009-05-12."opensuse 10.1 pegasosquickstart" note that any changes to the ext2 on-disc format may prevent booting. it is, however possible to add some ext3 features so long as the volume can still be recognized as ext2. the pegasos was sold by genesi usa, inc., and designed by their research and design partner bplan gmbh based in frankfurt, germany. there are two versions of the system: the pegasos i and the pegasos ii. == pegasos i == the pegasos i supports the ibm 750cxe cpu (g3), has 100 mbit/s ethernet onboard and uses pc133 sdram. it was discontinued after a hardware bug in the mai logic articias northbridge was discovered. later versions of the pegasos i came with a hardware fix which was designated "april". further improvements were made in an "april 2" design which solved further problems. it has been replaced by the pegasos ii. == pegasos ii == right|thumb|200px|pegasos 2nd version (g4), inner view the pegasos ii uses a marvell discovery ii northbridge, removing the need for the "april" chipset fix on the previous model, and additionally offers integrated gigabit lan and ddr support, and the ability to use the freescale "g4" processor line. the 750cxe (g3) cpu boards do not require a cooling fan, and thus has been marketed as "cool computing". the current g4 boards are based around the freescale mpc7447 chip with a small fan. passive cooling solutions are possible and sold with the "home media and communication system", which is based on pegasos ii g4. genesi discontinued production of the pegasos ii in 2006, as the result of new european
PowerPC_mainboards