Macintosh LC 580

a.k.a. Performa 580, 588

Overview

The LC 580 is essentially an LC 575 with a 500 MB IDE hard drive (not SCSI) and a less expensive monitor.

Details

• LC 580 introduced April 3, 1995 at $1,300; discontinued August 1995
• Performa 580 introduced May 1, 1995 at $1,300; discontinued August 1995
• requires System 7.1 (with Enabler 065) to 8.1
• CPU: 33 MHz 68LC040
• FPU: requires replacing CPU with 68040
• performance: 10.0 (relative to SE); 29 MIPS
• ROM: 1 MB
• RAM: 4 MB on motherboard, expandable to 36 MB using a two 80ns 72-pin SIMM; first slot can accept 1 MB, 2 MB, 4 MB, 8 MB, 16 MB, or 32 MB SIMM; second slot can accept only 1 MB, 4 MB, or 16 MB SIMM
• video: 1 MB VRAM; supports 640x480 at 16-bits
• L2 cache: optional, PDS
• ADB ports for keyboard and mouse
• DIN-8 serial ports on back of computer
• DB-25 SCSI connector on back of computer
• one LC PDS slot
• size (HxWxD): 17.9" x 13.5" x 16.5"
• weight: 40.5 lb.
• PRAM battery: 4.5V alkaline
• Gestalt ID: 99
• addressing: 32-bit
• upgrade path: Power Mac PDS card

Accelerators & Upgrades

• L2 cache, various vendors, discontinued
• Macintosh Processor Upgrade runs at twice speed of the original processor (50 MHz) and has 256 KB level 2 cache (expandable to 1 MB)
• Daystar PowerCard 601 (50/66 MHz, 100 MHz 601), discontinued

Online Resources

• Performa 575 to Power Mac 575, Steve Wood, View From the Classroom, 2/7.
• 72-pin SIMM memory pricing, RAMseeker
• How Do I Set Up a 550 for the Net?, Mac Daniel
• How Do I Speed Up a 575?, Mac Daniel
• Should I Upgrade or Replace My Performa 575?, Mac Daniel
• Quadlist, the email list for 68040-based Macs
• Memory Upgrade Guide
• Apple Specs Online for LC 580, Performa 580, Performa 588

Cautions

• This highest PIO mode this model supports is Mode 3, Apple TIL 16335
• Serial port normally restricted to 57.6 kbps; use of a 56k modem may be limited. See 56k modem page. For more information on Mac serial ports, read Macintosh Serial Throughput on the Online Tech Journal.

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