User's Manual
Table Of Contents
- Power Macintosh G3 Desktop
- Hot Issues
- Introduction
- Shared Logic Board
- Processor Module Vs. Card
- Power Supply Jumper
- Processor Module Jumper
- Warranty Sticker
- Power Supply Voltage Setting
- Voltage Regulator
- I/O Card
- ROM DIMM
- SDRAM DIMMs
- SGRAM Video Memory
- EIDE Bus Issue
- Master/Slave Support
- Ultra Wide SCSI Cable Routing
- DVD-ROM Disk Damage
- CD-ROM Ejection Problem
- HFS+ Formatted Drives
- Power-On Issue
- Basics
- Overview
- Data Buses
- Ultra Wide SCSI Card
- 10/100 BaseT Ethernet Card
- DVD-ROM Drive Technology
- FireWire Technology
- The Cuda Chip
- Resetting the Logic Board
- Sound
- Video Input and Output
- The DAV Connector
- Voltage Switch
- PowerPC G3 and Backside Cache
- SDRAM DIMMs
- SGRAM Video Memory
- DIMM Slots
- Peripheral Component Interconnect (PCI)
- Front View
- Rear View
- Internal Locator
- Logic Board
- Repair Strategy
- Warranty/AppleCare/ARIS
- G3 Design Information
- PowerPC Design Information
- Specifications
- Take Apart
- Top Housing
- Bezels
- Chassis Latch
- CD-ROM or DVD-ROM Drive
- Zip Drive
- Floppy Drive
- Drive Chassis
- Open/Remove Card Retainer Baffle
- Open Internal Chassis
- Hard Drive
- Drive Rails
- Power Supply
- Speaker
- Power Actuator
- Processor Module
- Battery
- PCI Cards
- Ultra Wide SCSI PCI Card
- FireWire PCI Card
- I/O Card
- Logic Board
- Rear Panel
- Bottom Chassis
- Modem Card
- Upgrades
- Troubleshooting
- Exploded View
- Screw Matrix
- Audio/Video Card Info
- Build-to-Order Info
- Hot Issues

Troubleshooting Symptom Charts/System - 17
Symptom Charts
System
Fan on power supply
is running, but no
startup chime, screen
is black, drive not
accessed at startup,
and no LED on front of
system
1 Verify power supply voltage switch is set correctly for your
region (see “Voltage Switch” in Basics chapter for more
information).
2 Check jumper block J28. Be sure setting is correct for type
of power supply installed (see “Logic Board” in Take-Apart
chapter for more information).
3 Check jumper block configuration at J16. Make sure jumper
block is correct color for processor type installed (see
“Processor Module” in Take-Apart chapter for more
information) and that it is installed in the correct direction.
4 Reseat voltage regulator.
5 Reseat processor module. Make sure locking arm is in down
position.