Service Source Power Mac G5 - Retrocomputing.net

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*The PCI slots can accommodate mixed-voltage (5.0 V, 12 V, or 3.3 V) cards but only at 3.3 V signaling, with 32-bit or 64-bit data widths and a 33 MHz frequency. You can add a 66 MHz card to a 33 MHz PCI slot if the card can operate at the lower 33 MHz rate. Warning: Installing PCI cards that function only at 66 MHz could damage the computer. However, cards that run at both 66 MHz and 33 MHz may be installed. Check with the card’s manufacturer to see if a 66 MHz card also works at 33 MHz. Thermal Calibration To ensure proper fan and temperature control in the Power Mac G5, you must run Apple Service Diagnostic whenever you replace a processor or logic board with a new processor or logic board. You must also run the diagnostic if you re-install the same processor but in a different connector from the one in which it was originally installed. Apple Service Diagnostic for Power Mac G5 is available as a download from the Disc Images section of the Apple Service Source website. Note: The calibration process of Apple Service Diagnostic requires a controlled environment to ensure accurate ambient temperature readings. Computers under test must have the transparent air deflector installed and the door sensor switch must be operable. Units under test should also be located away from heating and air conditioning ventilation systems and the fan exhaust of other machines. Ambient temperature should not go above 77 degrees Fahrenheit or 25 degrees Centigrade. General Information Power Mac G5 Troubleshooting - 3
Block Diagram General Information Power Mac G5 Troubleshooting - 4
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apple Service Source Power Mac G5 U
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Overview Power Mac G5 is a 64-bit d
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What’s New Overview PowerPC G5—
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Video The Power Mac G5 computer com
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apple Service Source Take Apart Pow
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Opening the Computer Tools No tools
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3. Remove the air deflector and pla
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Procedure 1. Release the drive lock
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Replacement Note: When replacing th
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Procedure 1. Disconnect the optical
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6. If you are replacing the drive w
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Front Inlet Fan(s) The front inlet
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2. If you are replacing the fan(s)
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Memory (DIMMs) Depending on the mod
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Procedure 1. Locate the DIMM slots
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33 MHz PCI slots and cannot use PCI
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AirPort Extreme Card Only the AirPo
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Battery Tools No tools are required
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Rear Exhaust Fan(s) Tools The follo
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4. If you are replacing the fans, u
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Speaker/Fan Assembly Tools The only
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4. If you are replacing the fan, us
Page 45 and 46: Procedure 1. Remove the two screws
Page 47 and 48: Procedure 1. Remove the two Bluetoo
Page 49 and 50: Procedure 1. Remove the metal G5 ca
Page 51 and 52: Replacement Note: If you are replac
Page 53 and 54: Procedure 1. Route the modem filter
Page 55 and 56: Replacement Note: Make sure the mod
Page 57 and 58: Procedure 1. Disconnect the black a
Page 59 and 60: Front Panel Board Cable Tools No to
Page 61 and 62: PCI Card Guide Tools The only tool
Page 63 and 64: Power Supply Tools The only tools r
Page 65 and 66: 4. Remove the four power supply mou
Page 67 and 68: Air Deflector Sensor Board Tools Th
Page 69 and 70: Logic Board Tools The only tools re
Page 71 and 72: 5. Carefully tilt the logic board u
Page 73 and 74: 12. Install the modem filter board
Page 75 and 76: Replacement Procedure 1. Temporaril
Page 77 and 78: PCI Divider Tools The only tools re
Page 79 and 80: 3. Remove the modem filter board ca
Page 81 and 82: Thermistor Cable Tools The only too
Page 83 and 84: Front Inlet Fan Cable Tools The onl
Page 85 and 86: Front Panel Board Tools The only to
Page 87 and 88: 3. Carefully pull the board a short
Page 89 and 90: Power Button Tools The only tools r
Page 91 and 92: 4. Lift up and remove the power but
Page 93 and 94: apple Service Source Troubleshootin
Page 95: PCI and AGP Cards The Power Mac G5
Page 99 and 100: Pinouts Power Supply P1 Connector P
Page 101 and 102: Front Inlet Fan Connector Pin# Sign
Page 103 and 104: Optical and Serial ATA Hard Drive C
Page 105 and 106: No power (LED on/off, no fans, no b
Page 107 and 108: Modem 1. Replace modem 2. Replace m
Page 109 and 110: Exploded Views Exploded View 1 Supe
Page 111 and 112: Internal Views Overview Optical Dri
Page 113 and 114: External Views Front View Optical D
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Service Source Power Mac G5 - Retrocomputing.net

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