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Pre-Installed MacOS 9.2.2 & X 10.1.2
Maximum MacOS X 10.4.11
This model is capable of booting in MacOS 9 and using MacOS 9 applications within the MacOS X "Classic" environment.
Standard RAM 256 MB Maximum RAM: 1.0 GB
RAM Type PC133 SDRAM Min. RAM Speed 10 ns
Details: Although Apple's original specifications stated that it shipped with PC100 RAM, Apple later warned that "PC100 RAM is not to be used with iMac (Flat Panel) computers and may create performance and reliability issues".
*There is one factory installed memory module in a 168-pin DIMM slot and one 144-pin user-accessible SO-DIMM slot.
- Standard Hard Drive 60 GB (5400 RPM) Int. HD Interface Ultra ATA/66
Standard Optical 2X "SuperDrive" Standard Disk: None
Details: Apple reports that the tray-loading DVD-R/CD-RW SuperDrive "writes DVD-R discs at 2x speed, reads DVDs at 6x speed, writes CD-R discs at 8x speed, writes CD-RW discs at 4x speed, and reads CDs at 24x speed."
Also see: What are the capabilities of the optical drive provided by the iMac G4 models? How do you replace or upgrade the optical drive?
Standard Modem 56k v.90 Standard Ethernet 10/100Base-T
Standard AirPort 802.11b (Optional) Standard Bluetooth None
USB Ports 3 (1.1) Firewire Ports: 2 (400)
Standard AirPort: 802.11b (Optional) Standard Bluetooth: None
PRAM battery 3.6V half-AA
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G4 bottom Plate with four captive Phillips screws
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The bottom of the plate will list the serial number, MHz of the machine, standard RAM and hard drive size
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Here the plate has been removed exposing the slot for the Airport Card and User added RAM slot.
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Remove the four T15 torx screws.
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Set the unit on it's base, grasp the neck and tilt it to separate the base.
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The IDE cable unplugs first.
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Locate the 3.6 volt 1/2 AA Lithium PRAM battery on the logic board and replace it.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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Business
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These directions do not explain how to do any step of the process particularly showing where the battery is and how to carefully remove the bottom plate without breaking the logic board connector or cables. Also they are redundant as there are already directions to replace the PRAM Battery on this site. There is no point in there being two sets of directions for the same fix.
Sad that none of the pictures actually show the battery! Look for the other iMac G4 battery guide its better, although it misses the step of recoating the heat sinks with thermal paste.
