Quadra 650

Overview

Finding the market confused with five product lines (Mac II, Centris, Quadra, Performa, and PowerBook), Apple renamed the Centris models in October 1993. At the same time, the CPU in the Quadra 650 was boosted to 33MHz.

Details

• introduced October 1993
• requires System 7.1 or later
• 33MH 68040 CPU
• 4MB RAM, expandable to 136MB using 80ns 72-pin SIMMs; motherboard had 4 SIMM slots
• 512KB VRAM, expandable to 1MB
• ADB ports for keyboard and mouse
• DIN-8 serial ports on back of computer
• DB-25 SCSI connector on back of computer
• three NuBus slots
• one PDS slot
• upgrade path: Power Mac PDS card, Power Mac 7100

Accelerators & Upgrades

• MicroMac Speedy variable speed oscillator (to 38MHz)

Cautions

• Serial port limited to 57.6kbps; use of a 56k modem is not recommended.