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Pismo 7457 G4 upgrade
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Grizzled Veteran
Join Date: Oct 2001
Location: Michigan
Status:
Offline
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Is there any word about using this newer cooler chip as an upgrade? is it physically possible to offer? anyone with more knowledge can enlighten me.
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Pismo 400 | Powerbook 1.5 GHz | MacPro 2.66/6GB/7300GT
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Junior Member
Join Date: Apr 2001
Status:
Offline
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I have a sneaking suspicion that the PP 7457 is not pin-compatible with the Pismo duaghtercard. The PPC 7400 was (IIRC) relatively pin-compatible with the PPC 750. Hence, all that was required was a remounting of the CPU and some voltage tweaks. The new 512KB L2 G4s use a different pin layout.
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God is just a statistic...
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Dedicated MacNNer
Join Date: Jul 2003
Status:
Offline
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The 500 and 550 G4 chips are the last Pismo compatible designs, none since will work. The G3 750 series are another matter, with 1GB Pismo processor upgrades on the horizon.
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Moderator Emeritus  Join Date: Sep 2001
Location: Arizona
Status:
Offline
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The Pismo is not and will not be compatable with any of the 745x series G4s.
However, PowerLogix is reportedly working on a 750GX G3 upgrade in the 1GHz range. Should be quite nice...
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I like chicken
I like liver
Meow Mix, Meow Mix
Please de-liv-er
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