Specifications

Power Mac G5 (Late 2004) Troubleshooting -

Symptom Charts

Bluetooth

1. Replace Bluetooth card

2. Replace antenna card

3. Replace logic board

Audio IO (front line in <-> headphones)

1. Replace front panel board cable

2. Replace front panel board

3. Reposition logic board

4. Replace logic board

Audio IO (rear line in <-> line out)

Replace logic board

Audio IO (rear line out <-> line out)

Replace logic board

Fans

Individual fan failure

1. Replace fan

Exception: The drive fan located between the optical and hard drives cannot be

replaced. You must replace the enclosure for this part.

2. Replace logic board

Media bay fan runs at high speed

Note:

If any of the following three conditions cannot be veriﬁed, the red LED on the logic

board near the front panel board will be lit.

1. Verify that the clear plastic air deﬂector door is in place.

2. Verify that the white sensor label is not damaged and is in place on the lower right tab

of the air deﬂector door.

3. Verify that the air deﬂector sensor board is operating properly.

Note:

You can differentiate a bad sensor label from a bad sensor board by doing the

following: Remove the air deflector door. Slide a folded piece of paper through the

slot in the enclosure where the right tab of the air deflector would normally be

inserted. If the red LED goes out (but stays on with the door in place), the sensor

label on the door is missing or damaged.