The Apple Macintosh Quadra 840AV, designed to replace the Quadra 950, features a 40 MHz 68040 processor, a 66.7 MHz AT&T 3210 DSP processor to accelerate multimedia functions, 8 MB or 16 MB of RAM, a 230 MB, 500 MB, or 1.0 GB hard drive, an optional 2X CD-ROM drive, and an Audio-Visual card with S-video and RCA video input/output in an expandable tower case.

The Macintosh Quadra 840AV is the fastest in the Quadra series, and the fastest 68k-based Macintosh.

• Tech Specs
• Ports

Click on the category for related details. The most commonly needed info is "open" by default, but all info is important.

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Introduction Date:

July 29, 1993

Discontinued Date:

July 18, 1994

Details:

The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended. Also see: All Macs introduced in 1993.

Processor Speed:

40 MHz*

Processor Type:

68040

Details:

*The Macintosh Quadra 840AV has a 32-bit processor and a 32-bit data path. Sometimes this model is designated as having an 80 MHz processor, since the clock input runs at 80 MHz. However, the processor itself is not "clock doubled," so technically it only is a 40 MHz processor.

Processor Upgrade:

N/A

FPU:

Integrated

Details:

N/A

System Bus Speed:

40 MHz

Cache Bus Speed:

N/A

Details:

N/A

ROM Type:

Macintosh ROM

ROM Size:

2 MB

Details:

N/A

L1 Cache:

8k

L2 Cache:

N/A

Details:

N/A

RAM Type:

72-pin SIMM

Min. RAM Speed:

60 ns

Details:

N/A

Standard RAM:

8 MB, 16 MB

Maximum RAM:

128 MB

Details:

This model can be upgraded to 128 MB of RAM with four 32 MB SIMMs. Also see: Actual Max RAM of All G3 & Later Macs.

Motherboard RAM:

None

RAM Slots:

4

Details:

N/A

Video Card:

Dedicated*

VRAM Type:

VRAM SIMM*

Details:

*This model has slots for four 80 ns VRAM SIMMs.

Standard VRAM:

1 MB*

Maximum VRAM:

2 MB*

Details:

*1 MB of VRAM soldered. Four VRAM slots can be filled with 256k VRAM SIMMs for a total of 2 MB of VRAM.

Display Support:

Single Display*

Resolution Support:

512x384-1152x870*

Details:

*By default, the Macintosh Quadra 840AV only supports a single display, but a second one can be supported with the addition of a NuBus video card. With the standard 1 MB of VRAM, the system is capable of supporting 512x384 and 640x400 at 24-bit, 640x480, 800x600, and 832x624 at 16-bit, and 1024x768 and 1152x860 at 8-bit. With 2 MB of VRAM installed, it can support 512x384, 640x400, 640x480, and 800x600 at 24-bit and 832x624, 1024x768, and 1152x870 at 16-bit.

2nd Display Support:

Single Display*

2nd Max. Resolution:

Variable*

Details:

*This model can support a second display with the addition of a video card. By default, it only supports a single display.

Standard Hard Drive:

230 MB, 500 MB, 1 GB

Int. HD Interface:

SCSI

Details:

*By default, this model is configured with a 230 MB, 500 MB or 1 GB internal SCSI hard drive.

Standard Optical:

2X CD-ROM (Optional*)

Standard Disk:

1.44 MB (Either**)

Details:

*The entry-level M9025LL/A configuration shipped without a standard CD-ROM drive. Standard in other configurations. **This model is compatible with both auto and manual-inject floppy disk drives.

Standard Modem:

None

Standard Ethernet:

AAUI-15

Details:

N/A

Expansion Slots:

3 NuBus

Expansion Bays:

1 (5.25")*

Details:

*If the CD-ROM drive is not installed, a second external 5.25" bay is available.

Case Type:

Tower

Form Factor:

Mac Quadra 800

Details:

N/A

Apple Order No:

M9025LL/A*

Apple Subfamily:

Macintosh Quadra 840AV

Details:

*M9025LL/A refers to the configuration with 8 MB of RAM and a 230 MB hard drive. The configuration with 8 MB of RAM, a 230 MB hard drive and internal 2X CD-ROM drive is M9028LL/A, 16 MB of RAM and a 500 MB hard drive is M1836LL/A, 16 MB of RAM, a 500 MB hard drive and a 2X CD-ROM is M1837LL/A, and finally, 16 MB of RAM, a 1 GB hard drive and a 2X CD-ROM is M1838LL/A.

Apple Model No:

M9020

Gestalt ID:

78

Details:

Please note that these identifiers commonly refer to multiple models. Also see: All Macs with the M9020 Model Number and 78 Gestalt ID. For more about identifiers and how to locate them on modern Macs, please refer to EveryMac.com's Mac Identification section.

Battery Type:

3.6V Lithium

Battery Life:

N/A

Details:

N/A

Original Mac OS:

7.1

Supported Mac OS:

7.1-7.5.1, 7.5.3-8.1

Details:

Earlier and later versions of the Macintosh System/Finder and Mac OS are not supported.

Dimensions:

14.0 x 7.7 x 15.75

Avg. Weight:

25.3 lbs (11.5 kg)

Details:

In inches - height by width by depth, (35.6 cm, 19.6 cm, 40 cm).

Original Price (US):

US$4100, US$5100

Est. Current Retail:

N/A

Details:

Photo Credit: Apple Computer, Inc.

Click on a category for additional details. The most commonly needed info is "open" by default, but all info is important. The icons correspond with the icons for each port on the computer.

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Video (Monitor):

1 (DB-15)

Floppy (Ext.):

None

Details:

N/A

ADB:

1

SCSI:

1 (DB-25)

Details:

N/A

Serial (Standard):

None

Serial (Geoport):

2*

Details:

*Two Geoport serial ports standard (one printer, one modem).

Modem:

None

Ethernet:

1 (AAUI-15)

Details:

AAUI-15 Ethernet standard.

S-Video Input:

1*

S-Video Output:

1*

Details:

*Also includes composite video in/composite video out (RCA) ports.

Microphone:

1 (PlainTalk)

Sound In:

None

Details:

N/A

Sound Out:

1 (16-Bit Stereo)

Headphone:

None

Details:

N/A

Security (Lock):

1

Joystick (PC):

None

Details:

N/A

Power:

1

Power Adapter:

N/A

Details:

100V-240V AC, 50-60 Hz Frequency, 200 Max Watts. Icon Credit: Apple Computer, Inc.

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