The Compressed Air Keyboard Repair, Charles W Moore, Miscellaneous Ramblings, 2008.07.24.Any Mac can be upgraded, but it’s a question of what can be upgraded – RAM, hard drive, video, CPU – and how far it can be upgraded. Know Your Mac’s Upgrade Options, Phil Herlihy, The Usefulness Equation, 2008.08.26.Sonnet 100 MHz PowerPC 601 Presto PPC, discontinued.
Runs at twice the speed of the original processor (50 MHz) and has a 1 MB level 2 cache (resource: Unofficial PowerPro 601 Page.
Output Enablers 29.5-30 MHz clock accelerator.upgrade path: Power Mac PDS card, Power Mac 6100 (requires some case modification).SCSI: DB-25 connector on back of computer.serial: 2 DIN-8 RS-422 ports on back of computer.If SIMMs are not the same speed, faster SIMM should be in bank 0 (frontmost slot). RAM: 4 MB on motherboard, expandable to 68 MB using 80ns 72-pin SIMMs motherboard has 2 SIMM slots, which can be filled independently can use 4 MB, 8 MB, 16 MB, and 32 MB SIMMs.Performance: 12.1 (relative to SE) 7.93, MacBench 2.0 CPU.requires System 7.1 or later highest version supported without a PPC upgrade is Mac OS 8.1.Got a 68040-based Mac? Join our Vintage Macs Group.See our NuBus Video Card Guide for information on adding a NuBus video card, which also requires a NuBus adapter. was based on the less expensive 68LC040 chip.) Finding the market confused with five product lines (Mac II, Centris, Quadra, Performa, and PowerBook), Apple renamed the Centris models in October 1993.Īt the same time, the CPU in the Centris 610 was boosted from 20 MHz to 25 MHz.
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