Overclocking Pegasos 1, G3
  • Order of the Butterfly
    Order of the Butterfly
    sailor
    Posts: 185 from 2019/5/9
    From: Central Bohemi...
    Hello,
    please, can somebody advice me how overclock Pegasos 1 with G3 (750CXe) ?

    I found here few topics about G3 overclocking, but they are old, links are not works and original authors are not logged here for several years:
    FS: Pegasos I G3@700 MorphOS Keyfile 768MB April2 complete
    Overclocking the 750CXe (G3) CPU boards
    Overclocking your G4

    It will be great, if somebody have schemes or other stuff.
    Many thanks!
    AmigaOS: Pegasos II, Sam440ep-flex, Micro A1-C, AmigaOneX1000
    MorphOS: Pegasos II, Powerbook G4, iMac G5, Powermac G5 Quad
  • »04.10.21 - 07:38
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  • Priest of the Order of the Butterfly
    Priest of the Order of the Butterfly
    Amigaharry2
    Posts: 903 from 2010/1/6
    From: EU-Austria (Wien)
    Ask user DJBASE! Hie did it für a PEG2-G4. Maybe he nows it also for G3.

    For G4 only a new bridge has to be soldered on CPU-Board (see pic below). Don't know on G3.

    42182379ab.jpg
    Peg2, 3xPowerMac G5, 2xPowerbookG4, 2x MacMiniG4, Efika (again), A3000T and life is never boring.....
  • »04.10.21 - 08:48
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  • Order of the Butterfly
    Order of the Butterfly
    sailor
    Posts: 185 from 2019/5/9
    From: Central Bohemi...
    Thank you! I will contact him.

    But regarding the picture I am afraid, that G3 and G4 CPU cards are different.
    As I know, CPU cards are the same for Pegasos 1 and Pegasos 2, only difference is in FSB frequencies ( Peg1 100MHz, Peg2 133MHz) so if there will be scheme for Peg 2 G3 multiplicator, it will be great.
    AmigaOS: Pegasos II, Sam440ep-flex, Micro A1-C, AmigaOneX1000
    MorphOS: Pegasos II, Powerbook G4, iMac G5, Powermac G5 Quad
  • »04.10.21 - 09:12
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  • Priest of the Order of the Butterfly
    Priest of the Order of the Butterfly
    KennyR
    Posts: 781 from 2003/3/4
    From: #AmigaZeux, Gu...
    Historically it was never done much, both because the G3 CPU overlocked is still pretty poor, but because the April chip is a major performance brake that'll undermine anything you do anyway - and that's if it doesn't screw up timing and cause Articia lockups.

    Probably best not to bother.
  • »14.10.21 - 17:21
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