Macintosh Performa 631CD
The Macintosh Performa 631CD is a consumer-oriented personal computer manufactured by Apple Computer and released on July 17, 1995.[1] It is an enhanced variant of the Performa 630CD, featuring double the RAM, a larger hard drive, and bundled peripherals.
 | |
| Macintosh Performa 631CD | |
| Specifications | |
|---|---|
| Manufacturer | Apple Computer, Inc. |
| Type | Personal Computer |
| Released | July 17, 1995 |
| Discontinued | February 1996 |
| Intro price | US$1,699 |
| CPU | Motorola 68LC040 @ 33 MHz |
| Memory | 8 MB RAM (expandable to 52 MB) |
| Storage | 500 MB IDE hard drive, 2× CD-ROM, 1.44 MB floppy drive |
| Display | Supports up to 832×624 at 8-bit color |
| Sound | Stereo 16-bit sound input/output |
| Dimensions | 4.3" H × 12.6" W × 16.5" D |
| Weight | 19 lbs (8.6 kg) |
| OS / Firmware | System 7.1.2P – Mac OS 8.1 |
| Predecessor | Performa 630CD |
| Successor | Performa 6200CD |
| Codename | Crusader |
| Model no. | M3076 |
The Performa 631CD was sold as a complete system bundle including a modem and display, making it a turnkey solution for home users.
Differences from Performa 630CD
edit- RAM: 8 MB standard (vs. 4 MB)
- RAM Slots: Two 72-pin SIMM sockets (vs. one)
- Hard Drive: 500 MB (vs. 250 MB)
- Bundle: Included modem and display
Architecture and Processor
editThe Performa 631CD uses a Motorola 68LC040 processor running at 33 MHz without an integrated FPU. The system bus operates at 33 MHz.
Memory and Storage
editRAM Configuration
editThe system ships with 8 MB of RAM (4 MB soldered, 4 MB SIMM). The logic board has two 72-pin SIMM sockets, allowing expansion up to 52 MB total. 80 ns non-parity SIMMs are required.[2]
Storage Systems
edit- 500 MB IDE hard drive
- 2× Apple CD 300i plus CD-ROM drive
- 1.44 MB SuperDrive floppy
Display and Graphics
edit1 MB of dedicated DRAM for video. Supported resolutions:
- 512×384, 640×480: 16-bit color
- 800×600, 832×624: 8-bit color
Bundle Contents
editThe Performa 631CD was sold with:
- 14.4k modem
- Apple display
- Keyboard and mouse
- Consumer software bundle (ClarisWorks, At Ease, etc.)
General Maintenance
editFor maintenance procedures, refer to the Macintosh LC 630 General Maintenance page.
Capacitor Replacement Guide
editSee the Macintosh LC 630 Capacitor Replacement Guide page.
Troubleshooting
editSee the Macintosh LC 630 Troubleshooting page.
Service Documentation
editThe official Apple Service Source documentation for this model: