Power Macintosh G4 400 (Gigabit) Specs (Gigabit Ethernet, M7891LL/A, PowerMac3,3, M5183, 1856): EveryMac.com

Apple Power Macintosh G4 400 (Gigabit) Specs

Identifiers: Gigabit Ethernet - M7891LL/A - PowerMac3,3 - M5183 - 1856

All Power Macintosh G4 Models | All 2000 Models | Dynamically Compare This Mac to Others

Apple Power Mac G4 The Apple Power Macintosh G4/400 (Gigabit Ethernet) features a 400 MHz PowerPC 7400 (G4) processor with the AltiVec "Velocity Engine" vector processing unit and 1 MB of backside cache. It shipped configured with 64 MB of RAM, a 20 GB Ultra ATA/66 hard drive, a 5X DVD-ROM drive, and a 2X AGP ATI Rage 128 Pro graphics card with 16 MB of SDRAM. AirPort (802.11b) was available by custom configuration.

In addition to the onboard 10/100/1000Base-T (Gigabit) Ethernet port for which they are named, the Power Macintosh G4 (Gigabit Ethernet) models introduced the convenient, but subsequently maligned, ADC (Apple Display Connector), which carries analog and digital video signals, USB data, and power in the same cable. It also shipped with a new Apple "Pro" keyboard and mouse.

All Power Macintosh G4 (Gigabit Ethernet) models use a case design effectively the same as that introduced with the Power Macintosh G3 (Blue & White) -- complete with a fold down door on the side that makes upgrading very easy -- but is clad in a more conservative "graphite" and white color scheme. Custom configurations also were available.

Also see: What are the differences between the "Gigabit" Power Mac G4 models?

Despite the age of this system, site sponsor Other World Computing has RAM, hard drives, SSDs, and other upgrades available for this specific Mac while supplies last.

Tech Specs
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Introduction Date:

July 19, 2000

Discontinued Date:

January 9, 2001

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 2000.

Processors:

Geekbench 2:

258

Details:

This model only is compatible with the 32-bit Geekbench 2 benchmark. These numbers reflect an average of user provided 32-bit and 64-bit results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all 32-bit Geekbench 2 user submissions for Macs with the PowerMac3,3 Model Identifier, which may include multiple models.

To dynamically compare Geekbench results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.

Processor Speed:

400 MHz

Processor Type:

PowerPC 7400 (G4)

Details:

The PowerPC G4 includes the AltiVec "Velocity Engine" vector processor.

Processor Upgrade:

AGP G4 Daughtercard

FPU:

Integrated

Details:

The Power Macintosh G4 (Gigabit Ethernet) models have the processor mounted on a custom 300-pin daughtercard.

System Bus Speed:

100 MHz

Cache Bus Speed:

200 MHz

Details:

This system has a 200 MHz backside bus and 1 MB of level 2 cache.

ROM/Firmware Type:

Open Firmware

ROM/Firmware Size:

1 MB

Details:

Boot ROM and around 1 MB, other instructions are loaded into RAM (NewWorld).

L1 Cache:

64k

L2/L3 Cache:

1 MB (backside)

Details:

The 1 MB of backside cache has a 200 MHz bus.

RAM Type:

PC100 SDRAM

Min. RAM Speed:

100 MHz

Details:

Officially supports 100 MHz PC100 SDRAM (3.3v, unbuffered, 64-bit-wide, 168-pin), but PC133 SDRAM is backwards compatible and may be used as well.

Standard RAM:

64 MB

Maximum RAM:

2 GB*

Details:

*This system can support up to 2.0 GB of RAM, but can only use 1.5 GB while booting MacOS 9 (less than 1.0 GB per application).

Site sponsor Other World Computing sells memory -- as well as other upgrades -- for this Power Macintosh G4.

In Germany, site sponsor CompuRAM sells memory and other upgrades for this Power Mac G4.

Also see: Actual Max RAM of All G3 & Later Macs.

Motherboard RAM:

None

RAM Slots:

Details:

There is no performance advantage to installing memory modules in pairs.

Video Card:

Rage 128 Pro

VRAM Type:

SDRAM

Details:

The default ATI Rage 128 Pro graphics card has 16 MB of SDRAM and occupies a 2X AGP slot.

Standard VRAM:

16 MB

Maximum VRAM:

16 MB

Details:

N/A

Display Support:

Single Display

Resolution Support:

1920x1200

Details:

Apple advertised that this system can support "up to 1920 by 1200 pixel resolution at 32 bits per pixel (millions of colors)".

2nd Display Support:

None

2nd Max. Resolution:

N/A

Details:

N/A

Standard Storage:

20 GB HDD

Std. Storage Speed:

5400 RPM

Details:

It also could be configured with up to three 10,000 RPM Ultra160 SCSI drives at the time of purchase as a build-to-order option.

In the US (and many other countries), site sponsor Other World Computing sells storage upgrades for this Power Mac G4.

Also see: SSD Compatibility Guide for All G3 & Later Macs.

Storage Dimensions:

3.5" (25.4 mm)

Storage Interface:

Ultra ATA/66 (ATA-5)

Details:

Can officially support two 3.5" Ultra ATA/66 hard drives or SSDs on the original bus (more drives can be supported with a third-party controller PCI card) -- drives larger than 128 GB are not natively supported. Ultra ATA/100 hard drives are backwards compatible with the Ultra ATA/66 standard.

Standard Optical:

5X DVD-ROM

Standard Disk:

None*

Details:

The 5X DVD-ROM drive uses a EIDE (ATA-3) bus. A DVD-RAM drive was available as a build-to-order configuration.

*An internal Zip drive also was available build-to-order.

Standard Modem:

56k v.90

Standard Ethernet:

10/100/1000Base-T

Details:

Internal modem and 10/100/1000Base-T (Gigabit) Ethernet standard.

Standard AirPort:

802.11b (Optional)

Standard Bluetooth:

None

Details:

AirPort (802.11b) was available as a build-to-order addition.

USB Ports:

2 (1.1)

Firewire Ports:

2 (400)

Details:

USB 1.1 ports are dual channel.

Expansion Slots:

3 PCI*, AP

Expansion Bays:

5 3.5"

Details:

*In the default configuration, this model has three open 33 MHz 64-bit PCI slots, and a 133 MHz 2X AGP slot occupied by the graphics card. It also has an open AirPort (802.11b) expansion slot.

It has five 3.5" drive bays (four are internal and intended for hard drives, and one is external and intended for a Zip 100 drive). With a single hard drive and the Zip drive installed, three internal 3.5" bays are free. The system also has an external 5.25" drive bay occupied by the optical drive.

Incl. Keyboard:

Apple Pro Keyboard

Incl. Input:

Apple Pro Mouse

Details:

N/A

Case Type:

Tower

Form Factor:

Power Mac G4 (Graphite)

Details:

Apple Order No:

M7891LL/A

Apple Subfamily:

Gigabit Ethernet

Details:

The Apple order number should be unique to this system.

Apple Model No:

M5183 (EMC 1856)

Model ID:

PowerMac3,3

Details:

Please note that these identifiers refer to more than one model.

Also see: All Macs with the M5183 Model Number, the 1856 EMC Number, and the PowerMac3,3 Model Identifier.

For more about these identifiers and how to locate them on each Mac, please refer to EveryMac.com's Mac Identification section.

Battery Type:

3.6V Lithium

Battery Life:

N/A

Details:

N/A

Pre-Installed MacOS:

9.0.4

Maximum MacOS:

X 10.4.11

Details:

This system is not supported running versions of Mac OS X more recent than 10.4.11.

Also see: Is there a "hack" to make Mac OS X 10.5 "Leopard" run on unsupported Power Mac G4 models?

MacOS 9 Support:

Boot/Classic Mode

Windows Support:

Emulation Only

Details:

This Power Macintosh G4 model is capable of booting Mac OS 9 and using Mac OS 9 applications within the Mac OS X "Classic" environment.

Dimensions:

17.0 x 8.9 x 18.4

Avg. Weight:

30.0 lbs. (13.6 kg)

Details:

In inches - height by width by depth, (43.2 cm, 22.6 cm, 46.7 cm).

Original Price (US):

US$1599

Est. Current Retail:

N/A

Details:

Please note that on average the estimated current retail pricing of used systems is updated twice a year (please refer to the date on the bottom of the page for the date last updated).

Photo Credit: Apple Computer.

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 VGA, 1 ADC

Floppy (Ext.):

None

Details:

One VGA (15-pin mini D-Sub) and one ADC port.

ADB:

None

SCSI:

None

Details:

N/A

Serial (Standard):

None

Serial (Geoport):

None

Details:

N/A

USB:

2 (1.1)

Firewire:

2 (400)

Details:

USB 1.1 ports are dual channel.

Modem:

1 (RJ-11)

Ethernet:

1 (RJ-45)

Details:

10/100/1000Base-T (Gigabit) Ethernet standard.

S-Video Input:

None

S-Video Output:

None

Details:

N/A

Microphone:

None

Sound In:

Details:

Includes a single analog 16-bit stereo sound in jack.

Sound Out:

Headphone:

None

Details:

Includes a single rear mounted analog 16-bit stereo sound out jack.

Security (Lock):

Joystick (PC):

N/A

Details:

N/A

Power:

Power Adapter:

N/A

Details:

115V AC (90V to 132V AC) or 230V AC (180V to 264V AC). 220W maximum.

Ten of the most popular Q&As about the Power Macintosh G4 models follow.

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