Power Mac G4 (PCI Graphics)
Codename: "Yikes!"
Introduced: August 1999
Discontinued: December 1999
Processor: PowerPC 7400 v2.6 (G4)
Processor Speed: 350, 400 MHz
Cache: 64k L1,  512k or 1 MB backside (1:2) L2
Data Path: 64 bit
System Bus: 100 MHz
Hard Drive Size: 10 GB
Media: CD-ROM
Weight and Dimensions: 28.7 lbs, 17" H x 8.9 W" x 18.4 D"
Original Mac OS: Mac OS 8.6 (Mac OS ROM 1.7.1)
Maximum Mac OS: Latest release of Mac OS X
Machine ID: PowerMac1,2
Motherboard RAM: 0 MB
Maximum RAM: 1024 MB
Number of Sockets: 4 - PC100 3.3v, unbuffered, 8-byte, non-parity 168-pin SDRAM
Minimum RAM Speed: 125 MHz (8 ns)
Graphics Card: ATI Rage 128
Video Memory: 16 MB VRAM
Built-in Display: None
Display Connection: SVGA
Slots: 3 - 33MHz, 1- 66MHz PCI
Hard Drive Bus: Ultra ATA/33
Expansion Bays: 4 - internal 3.5" ATA drive bays, 1 - Zip 100 bay
Modem: Optional 56k
Airport: None
Bluetooth: None
PRAM: 3.6V Lithium
Power: 200 W
ADB: None
Serial: None
SCSI: Optional via PCI
USB: 2 - 12 MBit/s
FireWire: 2 - 400 MBit/s
Ethernet: 10/100BaseT
Sound In: 16 bit stereo mini-jack
Sound Out: 16 bit stereo headphone jack
History: The PowerMac G4 (PCI Graphics) was announced along with the PowerMac G4 (AGP Graphics). Originally, the PowerPC 7400 (G4) chip had been planned to debut in the G4 AGP model, but Apple was not able to get the new machine ready in time. The G4 PCI had been in the works in case of such an event, and allowed Apple to ship 7400-equipped machines while they worked out the final bugs of the G4 AGP. There were extreme supply issues with the G4 initially and this was further compounded by an "erratum" in the initial revision of the 7400 that effectively lowered the ceiling of the chip to 450MHz. As a result, all models of the G4 were "speed dumped" in October.

