Macintosh Performa 5270CD

The Macintosh Performa 5270CD is an all-in-one personal computer manufactured by Apple Computer, Inc., introduced on April 22, 1996. It is identical to the Performa 5260CD but was marketed specifically for Asian and European markets under a different model designation.

Macintosh Performa 5270CD

Macintosh Performa 5270CD
Specifications
Manufacturer	Apple Computer, Inc.
Type	All-in-one Personal Computer
Released	April 22, 1996
Discontinued	February 1, 1997
CPU	PowerPC 603e @ 100 MHz
Memory	8 MB RAM (expandable to 64 MB)
Storage	1.2 GB IDE hard drive, 4X CD-ROM
Display	14" Shadow Mask CRT (640×480 at 16-bit color)
Sound	16-bit mono sound input
Dimensions	17.5" H × 15.1" W × 16.0" D (44.5 × 38.4 × 40.6 cm)
Weight	45 lbs (20.4 kg)
OS / Firmware	System 7.5.3 – Mac OS 9.1
Predecessor	Performa 5200CD
Successor	Performa 5400CD
Model no.	M4796J/A

The Performa 5270CD features a 100 MHz PowerPC 603e processor with a 1.2 GB hard drive and 4X CD-ROM drive, housed in the same all-in-one chassis as its predecessor, the Performa 5200CD. The educational version, the Power Macintosh 5260/100, was sold in North America and also to the consumer market in Asia and Australia.

Differences from Performa 5260CD

The Performa 5270CD is functionally identical to the Performa 5260CD with the same specifications. The only differences are:

• Market: Sold exclusively in Asia and Europe
• Model Number: M4796J/A (Japan)
• Software Bundle: Region-specific bundled software

Architecture and Processor

The Performa 5270CD uses the PowerPC 603e processor running at 100 MHz with a 40 MHz system bus. The 603e is a 32-bit processor with a 64-bit data path and includes an integrated floating-point unit.

Cache Configuration

• L1 Cache: 32 KB (16 KB instruction + 16 KB data)
• L2 Cache: 256 KB (optional expansion slot)

Memory and Storage

RAM Configuration

Specification	Details
RAM Type	72-pin SIMM
Minimum Speed	80 ns
Standard RAM	8 MB
Maximum RAM	64 MB
RAM Slots	2

RAM cannot be interleaved on this system. 1 MB of system RAM is permanently dedicated to video function.

Storage Systems

• Hard Drive: 1.2 GB IDE internal drive
• Floppy Drive: 1.44 MB 3.5" manual-inject
• CD-ROM: 4X

Display and Graphics

The Performa 5270CD features a built-in 14" Shadow Mask RGB CRT display running at 640×480 resolution with 16-bit color. Video memory consists of 1 MB dedicated from system RAM and cannot be expanded.

Input/Output and Expansion

Port Configuration

• ADB: 1 port for keyboard and mouse
• Serial: 2 ports (printer and modem)
• Audio In: 1 port (16-bit mono)
• Audio Out: 1 port (stereo)
• SCSI: 1 external DB-25 port

Expansion Slots

• LC PDS: 1 slot
• Comm Slot: 1 slot
• Video I/O Slot: 1 slot
• TV Tuner Slot: 1 slot

General Maintenance

For detailed maintenance practices including cleaning, PRAM battery management, connector corrosion prevention, and voltage adjustments, refer to the dedicated Macintosh Performa 5260CD General Maintenance page.

Capacitor Replacement Guide

Detailed capacitor replacement guidelines for the logic board can be found on the Macintosh Performa 5260CD Capacitor Replacement Guide page.

Troubleshooting

A comprehensive troubleshooting guide addressing no power, chime but no video, intermittent operation, Sad Mac errors, and floppy drive problems is available on the Macintosh Performa 5260CD Troubleshooting page.

Technical Details

System Architecture at a Glance

Sub-system	Specification (Performa 5270CD, April 1996)
CPU	PowerPC 603e @ 100 MHz
System Bus	40 MHz
ROM	4 MB
RAM	8-64 MB (72-pin SIMM)
Video	640 × 480 @ 16-bit color
VRAM	1 MB (from system RAM)
Sound	16-bit mono input, stereo output
Disks	1.44 MB floppy, 1.2 GB HDD, 4X CD-ROM
Ports	ADB, SCSI, Serial × 2, Audio I/O

See Also

• Macintosh Performa 5260CD — Base model (worldwide)
• Macintosh Performa 5280 — 120 MHz variant (Japan)