Macintosh Performa 5280
The Macintosh Performa 5280 is an all-in-one personal computer manufactured by Apple Computer, Inc., introduced on November 12, 1996.[1] It is a faster variant of the Performa 5260CD with a 120 MHz PowerPC 603e processor and 8X CD-ROM drive, sold exclusively in Japan.
 | |
| Macintosh Performa 5280 | |
| Specifications | |
|---|---|
| Manufacturer | Apple Computer, Inc. |
| Type | All-in-one Personal Computer |
| Released | November 12, 1996 |
| Discontinued | June 1, 1997 |
| CPU | PowerPC 603e @ 120 MHz |
| Memory | 8 MB or 16 MB RAM (expandable to 64 MB) |
| Storage | 1.2 GB IDE hard drive, 8X 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 5260CD |
| Successor | Performa 5400CD |
| Model no. | M5182J/A |
The Performa 5280 is identical to the Performa 5260/120, but shipped with a different software bundle. The educational version, the Power Macintosh 5260/120, was sold in North America.[2]
Differences from Performa 5260CD
editThe Performa 5280 differs from the base Performa 5260CD in the following ways:
- CPU Speed: 120 MHz (vs 100 MHz)
- CD-ROM: 8X (vs 4X)
- Market: Sold exclusively in Japan
- Model Number: M5182J/A
- Introduction: November 1996 (vs April 1996)
Architecture and Processor
editThe Performa 5280 uses the PowerPC 603e processor running at 120 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
edit- L1 Cache: 32 KB (16 KB instruction + 16 KB data)
- L2 Cache: 256 KB (optional expansion slot)
Memory and Storage
editRAM Configuration
edit| Specification | Details |
|---|---|
| RAM Type | 72-pin SIMM |
| Minimum Speed | 80 ns |
| Standard RAM | 8 MB or 16 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
edit- Hard Drive: 1.2 GB IDE internal drive
- Floppy Drive: 1.44 MB 3.5" manual-inject
- CD-ROM: 8X
Display and Graphics
editThe Performa 5280 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
editPort Configuration
edit- 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
edit- LC PDS: 1 slot
- Comm Slot: 1 slot
- Video I/O Slot: 1 slot
- TV Tuner Slot: 1 slot
General Maintenance
editFor 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
editDetailed capacitor replacement guidelines for the logic board can be found on the Macintosh Performa 5260CD Capacitor Replacement Guide page.
Troubleshooting
editA 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
editSystem Architecture at a Glance
edit| Sub-system | Specification (Performa 5280, November 1996) |
|---|---|
| CPU | PowerPC 603e @ 120 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, 8X CD-ROM |
| Ports | ADB, SCSI, Serial × 2, Audio I/O |
See Also
edit- Macintosh Performa 5260CD — Base model (100 MHz)
- Macintosh Performa 5270CD — 100 MHz variant (Asia/Europe)