Macintosh Quadra 660AV
The Macintosh Quadra 660AV is a 68040-based desktop "pizza-box" computer that was released in October 1993.
Specifications
According to everymac.com.
| Spec | Details |
|---|---|
| Release Date | October 1991 |
| Discontinuation Date | September 1994 |
| Processor | Motorola 68040 @25MHz - Additional AT&T 3210 DSP |
| RAM | 4x 72-pin SIMM Slots - 8MB Standard - 68MB Maximum |
| Hard Disk | 3.5" SCSI - 230 or 500MB Standard |
| Graphics | 1MB VRAM |
| Audio | Internal Speaker |
| Internal Drives | - Manual inject 3.5" 1.44MB Floppy Drive - Optional 2X CD-ROM |
| Expansion | - 1x PDS or 1x NuBus w/ adapter |
| Networking | AAUI Ethernet |
| Other I/O | - 1x ADB - 2x Serial - 1x DB25 SCSI - 1x DB15 Video Out - 1x Line Out - 1x Mic In - 1x S-Video Out - 1x S-Video In - 1x Composite Out - 1x Composite In |
| PRAM Battery | 1/2AA Lithium |
| Original Mac OS | System 7.1 |
| Maximum Mac OS | Mac OS 8.1 |
Upgrades
SSD Upgrade
Check our page on SCSI SSD replacements for more info.
Resources
 Service Manual |
Capacitor Reference |
|---|
Common Faults & Maintenance
PRAM Battery Leaks
The 1/2AA Lithium PRAM battery in the 700 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 660AV's logic board must be recapped as the original electrolytic capacitors on it practically always fail and leak.
Brittle Plastic
The 660AV's plastic parts are very brittle. The drive bezels and case clips are the most common parts to break.
Page last updated (MM/DD/YYYY): 09/24/2024
Update Reason: page rewritten
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