Model Detail - iMac 20 inch 1.25 GHz PowerPC 7445 (G4) (Late 2003)

The iMac G4 1.25 20-Inch (Flat Screen) is powered by a 1.25GHz PowerPC 7445 G4 processor with "Velocity Engine" vector processing and a 256k level 2 cache, 256MB DDR-333 (PC2700) SDRAM, a 7200 RPM 80.0GB Ultra ATA/100 hard drive, a tray-loading 4X "SuperDrive" along with an NVIDIA GeForce FX 5200 Ultra graphics processor running 64MB of VRAM (AGP 4X support) with upgrades for AirPort Extreme (802.11g) and Bluetooth offered.
The unique "Luxo Light" style has a white dome base with an articulated chrome neck supporting a 1680x1050 20" LCD display.

Download the manual from here.

Learn how to install Extra RAM here.

MAIN SPECS
Processor Speed	1.25GHz
First Build Date	11/18/2003
Last Build Date	07/01/2004
Built-in Display	20.0
Model Identifier	PowerMac6,3
Apple Order Number	M9290LL/A
Apple Model Number	N/A (EMC N/A)
Form Factor	iMac G4 20
Apple Subfamily	iMac USB 2.0

EXPAND / UPGRADE
Standard RAM	256MB
Maximum RAM	2GB
RAM Slots	2
RAM Specs	PC2700 DDR-333
RAM Speed	333MHz
Standard Storage Drive	80GB (7200 RPM)
Maximum Storage Drive	500GB
Storage Drive Interface	Ultra ATA/100

SYSTEM
Processor Type	PowerPC 7445 (G4)
Processors / Cores	1
Geekbench Rating	N/A
Turbo Boost Speed	N/A
Custom Speeds	1
Architecture	616
Processor Upgradeable	No / Soldered
FPU	Integrated
Integrated System RAM	None
Standard RAM	256MB
Maximum RAM	2GB
RAM Slots	2
RAM Specs	PC2700 DDR-333
RAM Speed	333MHz
System Bus Speed	167MHz
Cache Bus Speed	1.25GHz (Built-in)
ROM / Firmware Type	Open Firmware
EFI Architecture	1MB
L1 Cache	64k
L2 / L3 Cache	256k (on-chip)

VIDEO / GRAPHICS
Video Card	GeForce FX 5200 Ultra
VRAM Type	DDR SDRAM
Standard VRAM	64MB
Maximum VRAM	64MB
Native Resolution	1680x1050
Multi Display Support	Mirroring Only
Multi Display Max Resolution	1024x768

STORAGE
Standard Storage Drive	80GB (7200 RPM)
Maximum Storage Drive	500GB
Storage Drive Interface	Ultra ATA/100
Optical Disk	4X
Floppy / Zip Drive	None

Ports
AirPort	802.11b/g (Optional)
Bluetooth	1.1 (Optional)
Video / Multi-IO	1 (Mini-VGA)
Thunderbolt Ports / Spec	None
USB Ports / Spec	3 (2.0)
Firewire Ports / Spec	2 (400)
Ethernet (RJ-45)	10/100Base-T
Modem (RJ-11)	56k v.92
Headphone	None
Microphone	1
Audio In	1
Audio Out	1
Keyboard	Apple Pro Keyboard
Mouse / Trackpad	Apple Pro Mouse
Expansion Slots	AP/BL
Expansion Bays	None

LEGACY PORTS
SCSI	None
S-Video Input	1 (Built-in)
S-Video Output	1
Floppy	None
ADB	None
Serial	3 (2.0)
Geoport	2 (400)

OPERATING SYSTEM
Pre-Installed MacOS	OSX 10.3.1
Maximum MacOS	OSX 10.5.8
MacOS 9 Support	Boot/Classic Mode
Windows Support	Emulation Only
Minimum Windows	Classic Mode Only
Maximum Windows	Emulation Only

POWER
Battery Type	3.6V Lithium
Battery Life	N/A
Power Adapter	N/A

PHYSICAL
Case Type	All-in-One
Dimensions	13.93 x 20.9 OSX 10.6
Weight	40.1 lbs. (18.2 kg)
Original Price USD	US$2199

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