Apple iMac G4/1.25 20-Inch "FP" (USB 2.0) Specs (M9290LL/A)
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The Apple iMac G4/1.25 20-Inch (Flat Panel) features a 1.25 GHz PowerPC 7445 (G4) processor with the AltiVec "Velocity Engine" vector processing unit and a 256k on-chip level 2 cache, 256 MB of RAM (333 MHz PC2700 DDR SDRAM), an 80.0 GB Ultra ATA/100 hard drive (7200 RPM), a tray-loading 4X "SuperDrive", NVIDIA GeForce FX 5200 Ultra graphics with 64 MB of DDR SDRAM (AGP 4X support), and support for AirPort Extreme (802.11g) and Bluetooth with optional cards.
The internal components are housed in an attractive 10.6" half-sphere, ice white case with a chromed stainless steel neck that supports a 20" TFT Active Matrix LCD display (1680x1050 native). This model shipped with MacOS X 10.3 "Panther" (and cannot boot into MacOS 9), as well as an ice white Apple Pro Keyboard, Mouse, and Speakers. Unlike some earlier iMac models that are convection-cooled, the iMac "Flat Panel" series is cooled by a quiet internal fan.
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Click on the underlined category text for related details. The most commonly needed info is "open" by default, but all info is important.
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| Introduction Date: |
November 18, 2003 |
Discontinued Date: |
July 1, 2004 |
| Details: |
The "Introduction Date" refers to the date a model was introduced via press release. Unusually, Apple discontinued the iMac "Flat Panel" models on July 1, 2004 and was unable to ship the replacement iMac G5 models until August 31, 2004. |
| Processor Type: |
PowerPC 7445 (G4) |
Processor Speed: |
1.25 GHz |
| Details: |
The PowerPC G4 includes the AltiVec "Velocity Engine" vector processor. |
| Processor Upgrade: |
None |
FPU: |
Integrated |
| Details: |
The processor is mounted directly to the motherboard. |
| System Bus Speed: |
167 MHz |
Cache Bus Speed: |
1.25 GHz (Built-in) |
| ROM/Firmware Type: |
Open Firmware |
ROM/Firmware Size: |
1 MB |
| Details: |
The Boot ROM is roughly 1 MB, other instructions are loaded into RAM. |
| L1 Cache: |
64k |
L2/L3 Cache: |
256k (on-chip) |
| Details: |
256k on-chip level 2 cache runs at processor speed. |
| RAM Type: |
PC2700 DDR SDRAM |
Min. RAM Speed: |
333 MHz |
| Details: |
This system uses 333 MHz PC2700 DDR SDRAM (2.5v) memory modules. |
| Standard RAM: |
256 MB |
Maximum RAM: |
1 GB* |
| Details: |
*Maximum RAM as officially supported by Apple. "Unofficially" this model can support 2 GB of RAM.
Site sponsor Other World Computing sells iMac memory, as well as hard drives, accessories, and other upgrades. |
| Motherboard RAM: |
None |
RAM Slots: |
2* |
| Details: |
There is one factory installed memory module in a 184-pin DIMM slot and one 200-pin user-accessible SO-DIMM slot. |
| Video Card: |
GeForce FX 5200 Ultra |
VRAM Type: |
DDR SDRAM |
| Details: |
Shipped with a "NVIDIA GeForce FX 5200 Ultra graphics processor with AGP 4X support". |
| Standard VRAM: |
64 MB |
Maximum VRAM: |
64 MB |
| Details: |
The video cannot be upgraded. |
| Built-in Display: |
20.0" TFT |
Native Resolution: |
1680x1050 |
| Details: |
This model has a 20.0" TFT active matrix display with a native resolution of 1680x1050. It also supports "1344 by 840, 1280 by 800, 1024 by 640, 840 by 524, and 800 by 500 pixels at 16:10 aspect ratio; [and] 1024 by 768, 800 by 600, and 640 by 480 pixels at 4:3 aspect ratio." Apple reports a "typical" brightness of 230 cd/m, contrast ratio of 350:1, and viewing angle of 120 degrees horizontal and 170 degrees vertical. |
| 2nd Display Support: |
Mirroring Only* |
2nd Max. Resolution: |
1024x768* |
| Details: |
Apple reports that this system has a "mini-VGA output port for video mirroring on [an] external display or projector (requires Apple VGA Display Adapter, sold separately)." and supports output resolutions of "640 by 480 pixels at 60 Hz, 800 by 600 pixels at 75 Hz, and 1024 by 768 pixels at 75 Hz".
However, the hardware is capable of using an external display in dual or "extended desktop mode", Apple just blocked the capability in firmware to protect sales of more expensive Macs. Unsupported third-party hacks are available. |
| Standard Hard Drive: |
80 GB (7200 RPM) |
Int. HD Interface: |
Ultra ATA/100 |
| Details: |
This model supports hard drives larger than 128 GB. |
| Standard Optical: |
4X "SuperDrive" |
Standard Disk: |
None |
| Details: |
Apple reports that the tray-loading DVD-R/CD-RW SuperDrive "writes DVD-R discs at 4x speed, reads DVDs at 8x speed, writes CD-R discs at 16x speed, writes CD-RW discs at 8x speed, [and] reads CDs at 32x speed." |
| Standard Modem: |
56k v.92 |
Standard Ethernet: |
10/100Base-T |
| Details: |
Internal 56k v.92 modem and 10/100Base-T Ethernet standard. |
| Standard AirPort: |
802.11b/g (Optional) |
Standard Bluetooth: |
1.1 (Optional) |
| Details: |
This model could be configured with AirPort Extreme (802.11g) and Bluetooth at the time of purchase at additional cost. |
| USB Ports: |
3 (2.0) |
Firewire Ports: |
2 (400) |
| Details: |
This system has three USB 2.0 ports and two Firewire "400" ports (eight watts shared). Apple advertised that this computer had five USB ports -- three USB 2.0 ports on the computer and two USB 1.1 ports on the keyboard.
Also see: Complete Ports. |
| Expansion Slots: |
AP/BL |
Expansion Bays: |
None |
| Details: |
This model has expansion slots for AirPort Extreme (802.11b/802.11g) and Bluetooth. |
| Incl. Keyboard: |
Apple Pro Keyboard |
Incl. Input: |
Apple Pro Mouse |
| Details: |
This model also shipped with Apple Pro Speakers. |
| Case Type: |
All-in-One |
Form Factor: |
iMac G4 20" Flat Panel |
| Details: |
10.6 inch (27.0 cm) half sphere ice white case with a chromed staineless steel neck that supports the display. |
| Apple Model No: |
M9290LL/A |
Apple Subfamily: |
iMac USB 2.0 |
| Details: |
The Apple model number should be unique to this system. |
| Gestalt/Model ID: |
N/A |
Machine Model: |
PowerMac6,3 |
| Details: |
Please note that these identifiers refer to more than one model. |
| Battery Type: |
3.6V Lithium |
Battery Life: |
N/A |
| Pre-Installed MacOS: |
X 10.3.1 |
Maximum MacOS: |
Current |
| Details: |
Please note that this system can run the current version of MacOS X as of the date last updated (see bottom of page). |
| MacOS 9 Support: |
Classic Mode Only* |
Windows Support: |
Emulation Only |
| Details: |
*This model is capable of using MacOS 9 applications within the MacOS X "Classic" environment provided with MacOS X 10.4.11 "Tiger" and lower ("Classic" is not supported starting with MacOS X 10.5 "Leopard"). It cannot boot into MacOS 9.
Site-sponsor OHS specializes in heavily upgraded Macs capable of running both MacOS X and MacOS 9 applications. |
| Dimensions: |
13.93 x 20.9 x 10.6* |
Avg. Weight: |
40.1 lbs. (18.2 kg) |
| Details: |
*In inches - height x width x depth - minimum (35.4 cm, 44.0 cm, 27.0 cm). The maximum dimensions are 20.9 inches x 20.2 inches x 17.3 inches (53.0 cm, 44.0 cm, 27.0 cm). |
| Original Price: |
US$2199 |
Est. Current Retail: |
US$700-US$800 |
| 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. |
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