Vintage Macs: Centris and Quadra

PowerPC Upgrades for 040 PDS

Apple Power Mac Upgrade Card
DayStar PowerPro 601
Sonnet Presto PPC 700

• Got a Quadra? Join the Vintage Macs email list.

Overview

Details, Apple

• requires "fat" System 7.1 to 8.1
• requires Apple "Power Macintosh Card" control panel
• CPU: 66 MHz PowerPC 601
• CPU speed: runs at twice speed of '040 CPU
  • 40 MHz in Centris 610
  • 50 MHz in Centris 650, Quadra 610, 700, 900
  • 66 MHz in Quadra 650, 800, 950
  • reports of successful 80 MHz performance in a Quadra 950 with its bus chipped to 80 MHz
• ROM: Apple PowerPC ROMs
• RAM: uses memory on computer motherboard
• L2 cache: 1 MB

Details, DayStar PowerPro

• requires "fat" System 7.1 to 8.1 (only certified to 7.5.1)
• requires Daystar "PowerPro" or Apple "Power Macintosh Card" control panel
• CPU: 66, 80, or 100 MHz PowerPC 601
• ROM: Apple PowerPC ROMs
• RAM: uses memory on computer motherboard
• L2 cache: 256 KB or 1 MB, depending on model

Details, DayStar PowerPro with RAM Expansion

• requires "fat" System 7.1 to 8.1 (only certified to 7.5.1)
• requires Daystar "PowerPro" or Apple "Power Macintosh Card" control panel
• CPU: 66 or 80 MHz PowerPC 601
• ROM: Apple PowerPC ROMs
• RAM: two banks of two 72-pin SIMM sockets; requires 80ns or faster memory installed in pairs; supports 1, 2, 4, and 8 MB SIMMs
• L2 cache: 256 KB or 1 MB, depending on model

Details, Sonnet Presto PPC 700

• requires "fat" System 7.1.2 to 8.1, Mac OS 8.5-8.6 with Sonnet enabler
• requires Sonnet's Mac OS Enabler software
• CPU: 100 MHz PowerPC 601
• ROM: Apple PowerPC ROMs
• RAM: uses memory on computer motherboard
• L2 cache: 1 MB

Online Resources

• Benchmarks: Quadra 950 with Apple Macintosh Processor Upgrade
• Benchmarks: Quadra 700 with Apple Macintosh Processor Upgrade
• DayStar Turbo 601, Apple Macintosh Processor Upgrade, and DayStar PowerCard 601, MacUser, 1995:07
• Power Macintosh Upgrade Options, Computer User, 1994.12.01
• Sonnet Presto PPC, 100 MHz 601, 1 MB cache
• Unofficial PowerPro 601 Page
• Apple Power Macintosh Upgrade Card/Daystar PowerPro 601 compared, Apple TIL 14885
• Vintage Macs, the email list for 68040-based Macs
• Apple Specs Online for upgraded Centris 610, Quadra 610, Centris 650, Quadra 650, Quadra 700, Quadra 800, Quadra 900, Quadra 950

Cautions

• You must have a "fat" system installed to use a PowerPC upgrade.

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