Apple power mac g5 late 2004 User Manual

 © 2004 Apple Computer, Inc. All rights reserved. 

 
 
 
Service Source
 
Power Mac G5 (Late 2004)
  Updated: 18 November 2005 

 

© 2004 Apple Computer, Inc. All rights reserved.
 

 
 
 
Service SourceBasics
 
                  
 
Power Mac G5 (Late 2004) 

 

Power Mac G5 (Late 2004) Basics - 
 
1
 
 Overview
 
Overview
 
Power Mac G5 (Late 2004) is a single-processor 1.8 GHz Power Mac G5 computer that 
complements the existing family of dual 2.5 GHz, dual 2.0 GHz, and dual 1.8 GHz Power 
Mac G5 models.
Like the other Power Mac G5 models, the Power Mac G5 (Late 2004) computer is 
powered by the a 64-bit PowerPC G5 processor. It features 6.4GB per second of fast 
memory bandwidth, up to 4 GB of total main memory, three PCI expansion slots, up to 500 
GB of...

 

Power Mac G5 (Late 2004) Basics - 
 
2
 
 Identification
 
Identification
 
To identify a particular model of Power Mac G5, check the computer’s serial number, 
which lists the model’s configuration. The serial number is located directly below the air 
de flector inside the side access panel.
The Power Mac G5 (Late 2004) computer is also distinguised from earlier Power Mac G5 
models by the physical differences noted in the graphic below. 

 

Power Mac G5 (Late 2004) Basics - 
 
3
 
 What’s New
 
What’s New
 
Overview
 
Microprocessor:
 
 The Power Mac G5 (Late 2004) computer has a single 1.8 GHz 
PowerPC G5 processor. 
 
Processor system bus:
 
 The processor interface system bus runs at one-third the speed 
of the system processor. 
 
Memory bus:
 
 The main memory bus is 128 bit 400 MHz. 
 
System management unit:
 
 Power Mac G5 (Late 2004) uses an advanced system 
management unit (SMU) to manage thermal and wattage conditions, while...

 

Power Mac G5 (Late 2004) Basics - 
 
4
 
 What’s New
 
PowerPC G5 Processor
 
The processor used in the Power Mac G5 (Late 2004) has the following features:
• Single 1.8 GHZ processor
• 64-bit PowerPC implementation with 42-bit physical memory addressing
• Core runs at three times the bus speed 
• Superscalar execution core supporting more than 200 in-flight instructio\
ns
• Two independent double-precision floating point units 
• Velocity Engine: 128-bit-wide vector execution unit 
• 64K L1...

 

Power Mac G5 (Late 2004) Basics - 
 
5
 
 What’s New
 
DDR Memory
 
In the Power Mac G5 (Late 2004) computer, PC3200/400 DDR-SDRAM DIMMs must be 
installed in pairs of equal size and speed. Memory from older Macintosh computers is not 
compatible. Do not try to install non-DDR memory as it will not fit in the DIMM slots and 
could cause damage.
The computers ship with a minimum of 256 MB of RAM, provided by a pair of 128 MB 
DIMMs installed in the two DIMM slots marked “1.” You can add DIMMs, provided...

 

Power Mac G5 (Late 2004) Basics - 
 
6
 
 What’s NewAll graphics cards support dual displays in either extended desktop or video mirroring 
mode, and support digital resolutions up to 1920x1200 pixels and analog resolutions up to 
1600x1200 pixels. The Nvidia GeForce 6800 graphics cards support resolutions up to 
2560 by 1600 pixels.
The display memory on the AGP card is separate from the main memory. The display 
memory consists of 64 MB (or 128 MB and 256 MB CTO) of DDR devices con
figured to 
make...

 

© 2004 Apple Computer, Inc. All rights reserved.
 

 
 
 
Service SourceTake Apart
 
                  Power Mac G5 (Late 2004) 

 

Power Mac G5 (Late 2004) Take Apart - 
 
1
 
 General Information
 
General Information
 
Orientation
 
For most take-apart procedures, it is recommended that you lay the computer on its side 
before removing or installing the part. For proper operation, however, Apple recommends 
that the unit be run in the upright position. The computer should never be operated on its 
side with the access panel facing down.
 
Tools
 
The following tools are required to service the computer:
• Magnetic Phillips...