Sept 2010 Macintosh G3 G4 motherboards This page will have a list of current G3 and G4 motherboards we have as pulled from working systems. Please refer to our Web page at the link below for more information. http://www.retrotechnology.com/herbs_stuff/m_imac.html Herb Johnson G4 -- Gigabit Ethernet model M5183, motherboard 820-1153-A, Single 400MHz processor 820-1163A. Gigabit Ethernet 820-1153-A, with DUAL 500MHz or 533MHz processor "Sawtooth" AGP graphics motherboard 820-1094 A with 400Mhz processor 820-1163 A or 500Mhz processor. "Digital Audio" AGP graphics, motherboard 820-1173-A, 533Mhz or 733Mhz processor G4 733MHz "Quicksilver" - have a grey tower G4 with 733Mhz processor, motherboard 820-1342-B 630-3828 from year 2001. Still in system tower. G4 866MHz "Mirror Door" - I have a grey tower G4 with 866Mhz processor, case model M8670, motherboard 820-1476-A 630-4556 from year 2002. Still in system tower. G3 blue&white model M5183 ------------------------- G3 400Mhz blue & white tower Yosemite rev 2 number 820-1049A. 350MHz or 400MHz processor. G3 blue & white tower Yosemite rev 1 820-0987A, also available. 300Mhz processor available. Grey/platinum/beige G3's ------------------------ grey G3 rev 2 motherboard model 820-0991 (A or B), Also called "Rev 2" motherboard with "Rev C" ROM code $77D,45F2 or "Rev B" $77D,45F1 ROM. Also 300MHz or 266MHz processor grey G3 rev 1 motherboard model 820-0864 (A or B?)Also called "Rev 1" motherboard with "Rev A" ROM$77D,40F1. has ATI video chip "3D Rage II" ALso 233MHz or 266MHz processor, A few of these are available as systems in case.