Mac LC 550 (Performa 550)

The LC 550 replaced the LC 520, increasing CPU speed from 25 MHz to 33 MHz. It was released at the same time as the 68LC040-based LC 575.

LC 500 seriesThe Performa/LC 550 uses the same motherboard as the relatively rare Colour Classic II. For those with original Color Classics, dropping in a 550 motherboard is the quickest, easiest performance upgrade known.

Details

  • LC 550 introduced 1994.02.02 at $1,200; discontinued 1995.03.23
    Performa 550 introduced 1993.10.18 at $1,200; discontinued
    Performa 560 introduced 1994.01.01; discontinued.
  • requires System 7.1 (with Enabler 065) to 7.6.1
  • CPU: 33 MHz 68030
  • FPU: 68882 (optional)
  • Performance: 4.6 (relative to SE); 2.86, MacBench 2.0 CPU; 8.3 MIPS
  • ROM: 1 MB
  • RAM: 4 MB on motherboard, expandable to 36 MB using a single 80ns 72-pin SIMM; can use 1 MB, 2 MB, 4 MB, 8 MB, 16 MB, or 32 MB SIMM
  • video: 512 KB VRAM, supports 640 x 480 at 8-bits
  • L2 cache: none
  • ADB: 2 ports for keyboard and mouse
  • serial: 2 DIN-8 RS-422 ports on back of computer
  • SCSI: DB-25 connector on back of computer
  • Hard drive: 160 MB
  • enhanced LC PDS slot
  • size (HxWxD): 17.9″ x 13.5″ x 16.5″
  • Weight: 40.5 lbs.
  • PRAM battery: 3.6V half-AA
  • Gestalt ID: 80
  • addressing: 24-bit or 32-bit
  • upgrade path: LC 575 or LC 475/Quadra 605 motherboard, Power Mac PDS card

Accelerators & Upgrades

Online Resources

Cautions

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