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Macintosh Quadra 700

M0800 · 1991–1993 · desktop

Specifications

Cpu: Motorola 68040, 25 MHz
Gpu: Built-in video card (no dedicated GPU); optional NuBus display cards for higher resolutions
Ram: max: 20 MB via four 30-pin SIMM slots (68-pin on this model, 2 MB minimum per pair) · base: 4 MB
Ports: SCSI (DB-25, external) · 2x RS-422 serial (printer, modem) · ADB (2x, keyboard/mouse) · Stereo sound in/out · Ethernet (AAUI) · NuBus (2 slots, one shared with the PDS video slot) · Processor Direct Slot (shared with one NuBus slot)
Display: Built-in video supporting up to 16-bit color at 640x480 on Apple's 13 inch RGB display, driven by an on-board frame buffer; no built-in monitor
Storage: base: 80 MB or 160 MB internal SCSI hard drive · options: Internal 1.4 MB floppy drive (SuperDrive) · External SCSI hard drives via the rear SCSI port
Os Support: latest: Mac OS 8.1 (unofficial limit; officially supported through System 7.5.5) · shipped: System 7.0
Release Price: $5,699 (CPU only, 4 MB RAM / 80 MB HD configuration)

Variants

Storage

Quadra 700 (80 MB)Base configuration with an 80 MB internal SCSI hard drive.

Quadra 700 (160 MB)Higher-capacity configuration with a 160 MB internal SCSI hard drive.

Upgrade paths

RAM

20 MB via four SIMM slots · Uses 30-pin, 68-pin-configured SIMMs in matched pairs; case opens with a lever latch on the underside, easier than the Mac II series but still requires desoldering-free SIMM swaps only.

~$40-$120 depending on era and source of period SIMMs

MODERATE

storage

Any SCSI drive the internal cabling and power connector can support, plus external SCSI chain devices · Internal SCSI-1 bus; larger modern SCSI2SD or similar adapters are a common cult-classic swap to replace failing period drives.

~$30-$80 for a used period SCSI drive

MODERATE

CPU

No official CPU upgrade card was ever released for this NuBus/PDS slot layout · The 68040 is soldered to the logic board. Third-party PDS accelerator cards from the early 1990s exist but are rare and don't push far beyond the stock 25 MHz meaningfully.

n/a

LOCKED

display

Higher resolutions and colors via a NuBus display card in the single free NuBus slot · Built-in video tops out at 640x480 16-bit; the shared NuBus/PDS slot layout limits expansion to one card at a time if a PDS accelerator is also fitted.

~$50-$150 for a period NuBus video card

EASY