Power Mac G4 and Cinema Display Power Mac G4 and Cinema Display

Power Mac G4 Mid 1999 with PCI Graphics Datasheet

In the ever-evolving landscape of personal computing, few moments stand out as significantly as Apple’s introduction of the Power Mac G4 with PCI Graphics in 1999. This groundbreaking device, part of the Power Macintosh series, marked a pivotal moment in the history of personal computers, revolutionizing the market with its innovative features and performance capabilities.

On August 31, 1999, Apple showcased the Power Mac G4 at the Seybold conference in San Francisco. Two variants, officially known as Power Macintosh G4 Mid 1999, were introduced, featuring configurations of 350 MHz and 400 MHz. Colloquially dubbed “Graphite” due to its distinctive color scheme, this first-generation Power Mac G4 boasted a sleek and modern design that set it apart from its predecessors.

The early 400 MHz (later 350 MHz) PCI-based version shared similarities with the Power Macintosh G3 in Blue and White but showcased advancements such as the Motorola PowerPC 7400 G4 CPU. Meanwhile, the higher-speed “Sawtooth” models featured a modified motherboard design with AGP 2x graphics, replacing the traditional 66 MHz PCI slot.

The Power Mac G4 series introduced several groundbreaking features, including DVD-ROM drives as standard, 100 MB Zip drives in select models, and a robust system configuration with a 100 MHz system bus. With four PC100 SDRAM slots, users could expand their RAM to a remarkable 2 GB, a substantial capability during that time. These machines were also the first to incorporate an AirPort slot and a DVI video port, showcasing Apple’s commitment to staying ahead in the technological curve.

Apple Studio 21-inch CRT Display Graphite and Power Mac G4
Source: twitter.com – Apple Studio 21-inch CRT Display Graphite and Power Mac G4

The device could accommodate up to three hard drives, offering users flexibility in storage solutions. This included two 128 GB ATA hard drives and an optional 20 GB SCSI hard drive with the installation of a SCSI card, catering to the diverse needs of users.

Unveiled at a starting price of $1,599, the Power Mac G4 with PCI Graphics quickly gained popularity for its impressive specifications. The base model featured a 350 MHz or 400 MHz PowerPC 7400 G4 processor, 64 MB of RAM, a 10 GB hard drive, and a 32x CD-ROM drive. The inclusion of a 16 MB ATI Rage 128 graphics card ensured a seamless visual experience, further solidifying its appeal.

However, just two weeks after its introduction, due to supply constraints from Motorola, Apple had to make quick adjustments to the lineup. This resulted in the discontinuation of the initial model and the introduction of the 350 MHz Power Macintosh G4 with PCI Graphics, the 400 MHz Power Macintosh G4 with AGP Graphics, and a revised 450 MHz Power Macintosh G4 with AGP Graphics.

Despite its initial success, the Power Mac G4 Mid 1999 had a relatively short lifespan, being discontinued on December 2, 1999. The fast-paced nature of the technology market and the constant need for innovation likely played a role in this decision.

Even after 24 years, the Power Mac G4 continues to hold a special place in the hearts of Apple enthusiasts and tech aficionados. Its short-lived presence on the market underscores Apple’s commitment to pushing technological boundaries and delivering cutting-edge solutions. The legacy of the Power Mac G4 lives on as a testament to Apple’s innovation and its pivotal role in shaping the history of personal computing.

Power Mac G4
Source: pinterest.com – Power Mac G4

Power Mac G4 with PCI Graphics Details

IntroducedAugust 31, 1999 (400 Mhz)
October 13, 1999 (350 Mhz)
DiscontinuedOctober 13, 1999 (400 Mhz)
December 2, 1999 (350 Mhz)
Model IdentifierPowerMac1,2
Model NumberM7631
Order NumberM7826LL/A (350 MHz)
M7631LL/A (400 MHz)
Original Price$1,599
Weight28.7 Ibs.
13.018 KG
Dimensions17” H x 8.9” W x 18.4” D
43.18 cm H x 22.6 cm W x 46.73 cm D

Power Mac Mid 1999 Tech Specs


ProcessorPowerPC 7400 G4
Processor Speed350 MHz
400 MHz
Number of Cores1
System Bus100 MHz
Cache64 KB L1
512 KB or 1 MB backside L2

Storage & Media

Storage10 GB
Media1 – 32x CD-ROM


Built-in Memory64 MB
Maximum Memory1 GB
Memory Slots4 – PC-100 3.3v 168-pin SDRAM
Minimum Speed8 ns (125 MHz)
Interleaving SupportNo


Built-in DisplayNone


Graphics CardATI Rage 128
Graphics Memory16 MB
Display Connection1 – VGA
Display ModesSingle display only


Expansion Slots3 – 33 MHz PCI
1 – 66 MHz PCI
Bays4 – Internal 3.5″ ATA drive bays
1 – Optical drive bay
1 – Zip 100 bay
Hard Drive InterfaceUltra ATA/33 (ATA-4)
Optical Drive InterfaceEIDE (ATA-3)


Ethernet10/100BASE-T (RJ-45)
Modem56k (Optional)
USB2 – 12 Mbps
FireWire2 – 400 Mbps (15W total power)
Audio In1 – 3.5-mm analog input jack
Audio Out1 – 3.5-mm analog output jack
1 – Built-in speaker
Display1 – VGA


Original OSMac OS 8.6
Maximum OSMac OS X 10.4.11
FirmwareMac OS ROM 1.7.1

Keyboard and Mouse

PeripheralsApple USB Keyboard
Apple USB Mouse


Backup Battery3.6 V Lithium (922-1262)
Maximum Continuous Power200 W
Line Voltage115 V AC (90-132 V AC) or 230 V AC (180-264 V AC)

Further Reading and References

Disclaimer: The data presented in this article is under continuous development and has been manually collected from various sources based on their availability. The author of this article may revise this dataset as additional research is conducted and reviewed. Please note that the information is provided “as is” and “as available” without express or implied warranties. The author cannot be held responsible for any omissions, inaccuracies, or errors in the published information. Any warranties relating to this information are hereby disclaimed.

Last updated: January 14, 2024