Apple power mac g4 fw 800 User Manual

							Power Mac G4 (Mirror/FW 800) Take Apart - 109
 Right Side Access PanelReplacement Note:  When installing the replacement right side access panel for the 
Power Mac G4 (FW 800) model, make sure the cables are routed as shown. 
						

							110 - Power Mac G4 (Mirror/FW 800) Take Apart
 Modem Filter Board
Modem Filter Board
Tools
The only tool required for this procedure is a Phillips screwdriver. 
Part Location
Preliminary Steps
Before you begin, open the computer and remove the following.
• DIMMs
• Video card
• SCSI card (if present)
• Modem (if present)
• AirPort Card (if present)
• Bluetooth (if present)
• Heatsink
• Processor
• Processor stiffener
• Logic board 
						

							Power Mac G4 (Mirror/FW 800) Take Apart - 111
 Modem Filter Board
Procedure
1. Remove the mounting screw that secures the modem filter board to the back chassis.
2. Free the modem filter board cable from the guides in the chassis.
3. Swing the modem filter board out of the opening in the back chassis.
Replacement Note: Install the two tiny tabs on the replacement modem filter board 
into the tiny slots on the back chassis. Then swing the board into place before 
securing the screw. 
						

							
 © 2003 Apple Computer, Inc. All rights reserved. 

 
 
 
Service Source
Troubleshooting
 
Power Mac G4 (Mirrored Drive Doors) Power Mac G4 (FW 800) 
						

							
 Power Mac G4 (Mirror/FW800) Troubleshooting - 
 
1
 
 General Information 
General Information
 
What’s New
 
Available Con figurations: Power Mac G4 (FW 800) 
Available Con figurations: Power Mac G4 (Mirrored Drive Doors) 
 
Configuration Good Better Best
Bus Speed 133 MHz 167 MHz 167 MHz
L3 cache 1 MB 1 MB per  processor 2 MB per 
processor
Memory 256 MB, DDR 266  MHz256 MB, DDR 333 
MHz512 MB, DDR 333 
MHz
Processor 1 GHz Power PC  G4Dual 1.25 GHz 
Power PC G4Dual 1.42 GHz 
Power PC G4
Optical Drive Combo Drive  (DVD-ROM/CD-
RW)Combo Drive 
(DVD-ROM/CD-
RW)SuperDrive (DVD-
RW/CD-RW)
Con figuration Good Better Best
Bus Speed 133 MHz 167 MHz 167 MHz
L3 cache 1 MB per  processor 1 MB per processor  2 MB per processor
Memory 256 MB, DDR 266  MHz256 MB, DDR 333 
MHz 512 MB, DDR 333 
MHz
Processor Dual 867 MHz  Power PC G4Dual 1 GHz Power 
PC G4 Dual 1.25 GHz 
Power PC G4
Optical Drive Combo Drive  (DVD-ROM/CD-
RW)SuperDrive (DVD-
RW/CD-RW)
SuperDrive (DVD-
RW/CD-RW) 
						

							
 
2 -   
Power Mac G4 (Mirror/FW800) Troubleshooting  General Information 
Available Configurations: Power Mac G4 (Mirrored Drive Doors 2003) 
Cable-Select Drives
 
Important:
 
 This computer works with ATA and ATAPI internal storage devices that are set 
for cable select mode. The cable select feature forces the device to set its ID as either 
master or slave based upon its position on the ATA/ATAPI cable. If the device is attached to 
the end of the cable, then the device identi fies itself as a master. If the device is at the 
middle cable position, then it is a slave. Because cable select mode forces the drive to set 
its ID based upon its position on the cable, hard drives and optical drives are easily 
con figured. Before you install an additional third-party ATA and ATAPI drive, check the 
documentation that came with the drive or with the manufacturer to make sure it is set for 
cable select mode.
 
Important:
 
 Use the original Apple cables that came with this computer when you install 
additional drives. Some non-Apple cables may not correctly support cable select mode. 
DDR Memory
 
The computer’s logic board includes four memory slots, which accept double-data rate 
(DDR) SDRAM DIMMs. Memory can be expanded to a maximum of 2 gigabytes. 
DIMMs used in this computer must  fit these speci fications:
• PC2100 SDRAM DDR266 DIMMs for 133 MHz systems
• PC2700 SDRAM DDR333 DIMMs for 167 MHz systems
 
Important:
 
  Make sure that the memory installed on the logic board is compatible 
with the system. Refer to the next section, Results of Mixing PC2100 an\
d PC2700 
RAM. 
• 128, 256, or 512 MB DIMMs
256 MB DIMMs must have 128 or 256 megabit (Mbit) technology devices; 5\
12 MB 
DIMMs must have 256 Mbit devices
• 2.5 volt Con
figuration
Bus Speed 167 MHz
L3 cache 1 MB per  processor 
Memory 256 MB, DDR 333  MHz
Processor Uni 1.25 GHz  Power PC G4
Optical Drive Combo Drive  (DVD-ROM/CD-
RW) 
						

							
 Power Mac G4 (Mirror/FW800) Troubleshooting - 
 
3
 
 General Information • 64-bit wide, 184-pin module
• unbuffered (do not use registered or buffered DRAM)
• maximum height of 1.3 inches
 
Important:
 
 DIMMs from older Macintosh computers are not compatible with this 
computer. Do not use older DIMMs even if they  fit into the DIMM slots. 
Results of Mixing PC2100 and PC2700 RAM
 
This section describes what happens if you install both PC2100 and PC2700 memory in 
either a 167 MHz or a 133 MHz system bus computer. 
 
Important:
 
 DDR-SDRAM is closely correlated with the computers system bus speed. 
Use PC2100 DDR-SDRAM for 133 MHz system bus computers and PC2700 DDR-
SDRAM for 167 MHz system bus computers. 
 
Warning:
 
 Do not try to install non-DDR memory into the computer as it will not physically 
fi t in the DIMM slots. If you do so, you could damage the logic board. 
Ports
 
The standard con figuration includes the following ports on the back panel: one Ethernet 
port, two FireWire 400 ports, two USB ports, an internal modem port (on some models), 
Apple speaker mini-jack, an audio line-in port, an audio line-out port, a security lock port, a  133 MHz Systems:
When only PC2700 or a mix of 
PC2700 and PC2100 DIMMs is 
installed
The computer starts up normally and behaves 
as though PC2100 DIMMs are installed.
When  no  memory  is  installed The computer does not make a normal startup  sound. Instead, you hear a single tone, and 
the LED on the front of the computer flashes 
continuously.
167 MHz Systems:
When only PC2100 DIMMs are 
installed The computer makes three single tones 
instead of the startup sound. The LED on the 
front of the computer 
flashes three times, and 
the computer does not startup.
When a mix of PC2100 and PC2700 
DIMMs is installed The computer starts up normally, but neither 
the computer nor Apple System Pro
filer 
recognizes the PC2100 memory.
When  no  memory  is  installed The computer does not make a normal startup  sound. Instead, you hear a single tone and the 
LED on the front of the computer flashes 
continuously. 
						

							
 
4 -   
Power Mac G4 (Mirror/FW800) Troubleshooting  General Information
DVI monitor port, and an ADC monitor port. There is also one headphone jack on the front 
of the computer. For the Power Mac G4 (FW 800) model, there is a FireWire 800 port 
below the two FireWire 400 ports on the back panel.
The computer can be used with DVI or ADC monitors. To connect the computer to a VGA 
monitor, use the DVI-to-VGA adapter that came with the computer.
 
Note:  
 For a diagram of the ports location, refer to the Views chapter. 
FireWire Devices 
 
FireWire is a high-speed data transfer system for external devices such as digital video 
(DV) cameras, printers, scanners, and hard disk drives. You can connect and disconnect 
FireWire devices without restarting the computer. 
The Power Mac G4 (Mirrored Drive Doors) computer includes two FireWire 400 ports on 
the rear panel that support a maximum data rate of up to 400 megabits per second 
(Mbps). 
The Power Mac G4 (FW 800) computer includes three external FireWire ports on the back 
panel: 
• Two FireWire 400 ports support a maximum data rate of up to 400 megabits\
 per  second (Mbps). 
• One FireWire 800 port supports a maximum data rate of up to 800 megabits\
 per  second (Mbps).  
PCI and AGP Cards
 
The AGP 4X card, installed in slot 1, contains the graphics processor unit (GPU) and 
provides the monitor ports. Slot 1 is designed speci fically to accept AGP cards. This 66 
MHz slot accommodates 1.5 V AGP cards.
The standard con figuration of the computer has four PCI expansion slots, labeled 2, 3, 4, 
and 5, which accept PCI cards up to 12 inches long. Some models come with a SCSI PCI 
card installed in one of these slots. The PCI slots can accommodate mixed voltage (5.0 V, 
12 V, or 3.3 V) cards with 32-bit or 64-bit data widths and a 33 MHz frequency. A 66-MHz 
card can be used in a PCI slot if the card can operate at the lower 33 MHz rate.  
Note:  
 Maximum power consumption by the cards is
• 30 W for the AGP card
• 60 W for four PCI cards   
Warning:  
  Cables with large connectors may interfere with the enclosure in the PCI slot 
numbered 5, making it dif ficult to close the door and potentially causing damage to the PCI 
card. If this is the case, rearrange the cards in the slots. You may also connect the cable 
after the enclosure door is shut, but be sure to remove the cable before opening the door 
again. If the PCI cards are connected to each other with cables or jumpers, be careful 
when closing the door. 
						

							
 Power Mac G4 (Mirror/FW800) Troubleshooting - 
 
5
 
 General Information 
PCI Slot Power Consumption Speci fication
 
This table shows the power consumption of the PCI slots in the Power Mac G4 (Mirrored 
Drive Doors) computer. 
Device Voltage 
(volts) Current 
(amps) Power 
(watts) Notes
 
Expansion 
card (15 W) + 5 V 3 A 15 W 1
+ 12 V 0.5 A 6 W
-12 V 0.1 A 1.2 W
+3.3 V 4.5 A 15 W
Expansion 
card (25 W) + 5 V 5 A 25 W 2
+ 12 V 0.5 A 6 W
-12 V 0.1 A 1.2 W
+3.3 V 7.6 A 25 W
For 4 Hard 
Drives + 5 V 3.2 A 16 W 3
+ 12 V 2.4 A 29 W
For 2 Optical 
Drives + 5 V 2.4 A 12 W 3
+ 12 V 1.5 A 18 W
 
Notes  
1. Each current listed is a maximum for that voltage rail (a DC voltage source  from a segment of the power supply). Any 15 W expansion card should not 
consume more than 15 W of total power. One 15 W card would leave 45 W 
total for the remaining three slots. 
2. Each current listed is a maximum for that voltage rail. Any 25 W expansion  card should not consume more than 25 W of total power. One 25 W card 
would leave 35 W total power for the remaining three sots. 
3. A total of 75 W of power available for all mass storage devices.  
Power Supply Information:  
Line voltage: 115 V AC (90 V to 132 V AC) or 230 V AC (180 V to 264 V AC) 
Frequency: 47 Hz to 63 Hz, single phase 
Maximum continuous power: 400 W 
						

							
 
6 -   
Power Mac G4 (Mirror/FW800) Troubleshooting  General Information 
Ventilation 
 
Warning:  
  To prevent the computer from overheating, do not block the ventilation openings 
in the back panel. 
Hard Drives
 
 In this computer, the thickness of the hard drives must not exceed one inch (2.5 cm).
The computer can accommodate two internal Ultra ATA hard drives in each hard drive 
carrier, for a total of four drives. If the computer has one Ultra ATA drive installed, it sits in 
the rear drive carrier. A second drive can be installed in the rear carrier and two additional 
drives in the front carrier.  
Warning:  
  Do not swap ATA cable locations. The hard drive cables must not be swapped 
between hard drive carrier locations: 
• 100 MHz ATA bus speed cable at rear carrier
• 66 MHz ATA bus speed cable at front carrier  
Note:  
  Before installing a third-party drive, check with the drive manufacturer or the 
manufacturer’s Web site to determine if the drive is set for cable select mode. Before 
installation, set the drive to cable select if the manufacturer has not done so. 
Using 128 GB or Larger ATA Hard Drives
 
Not all computers can take advantage of the full capacity of large (128 GB or greater) hard 
drives that use 48-bit LBA when they are connected via an ATA controller. Other 
controllers (SCSI or FireWire) are not affected.
There are two primary requirements that must be met for higher capacity hard drives to be 
fully utilized within a computer.
• The computer must have Mac OS X 10.2 or later.  The high capacity drive must be formatted using Mac OS X 10.2 or later f\
or the full 
capacity of the drive to be available. Once formatted, the drive will be\
 recognized 
under the version of Mac OS 9.2.2 that comes with this Power Mac G4compu\
ter and 
later products. 
If the drive is not formatted using Mac OS X 10.2 or later, the maximum \
volume size 
available is limited to approximately 128 GB. 
• The computer must provide support for the drives via the BootROM.
The BootROM of this computer can accommodate these larger drives. 
This computer can take advantage of drives connected via the FireWire in\
terface.