Macintosh Quadra 650
The Macintosh Quadra 650 is a 68040-based desktop computer that was released in October 1993.
Specifications |
|
| Spec | Details |
|---|---|
| Released/Discontinued | October 1991/September 1994 |
| CPU | Motorola 68040 @33MHz |
| RAM | Type: 4x 72-pin SIMM Slot Standard: 4 or 8MB Maximum: 132 or 136MB |
| Storage | 3.5" SCSI Standard: 230 or 500MB |
| Graphics | 512KB or 1MB |
| Audio | Internal Speaker |
| Media Drives | Manual-inject 3.5" 1.44MB Floppy Drive 2X CD-ROM Drive (Optional) |
| Expansion | - 3x NuBus Slots - 1x 040 PDS Slot |
| Networking | AAUI Ethernet |
| Other I/O | - 2x Apple Desktop Bus - 2x Serial - 1x DB25 SCSI - 1x DB15 Video Out - 1x Line In - 1x Line Out |
| PRAM Battery | 1/2AA Lithium | Firmware | Old World |
| Minimum Mac OS | System Software 7.1 |
| Maximum Mac OS | Mac OS 8.1 |
Resources |
|
| Link | Details |
|---|---|
 |
Apple Macintosh Quadra 650 Service Manual |
 |
Macintosh Quadra 650 Capacitor Reference |
Common Faults & Maintenance
PRAM Battery Leaks
The 1/2AA Lithium PRAM battery in the 650 is very prone to leaking and should be removed. It does not need to be replaced on this model for the computer to operate.
Capacitors
The 650's logic board uses all solid-state capacitors and does not need to be recapped
Gallery
No photos of this Macintosh are available. If you would like to help out the site, send in some photos!