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 - 20
Computer begins to
power up, the fan and
hard drive are
spinning, the power
LED is lit, but there
is no video and the
boot chime is followed
by sound of breaking
glass
1 Reseat ROM DIMM.
2 Reseat DRAM DIMMs. (Note: the computer does not ship with
any on-board memory. You must have a DRAM DIMM installed
for the computer to boot properly.)
3 Test for a bad DRAM DIMM by removing the DIMMs one at a
time (replacing each one afterwards). Replace any faulty
DRAM DIMMs.
4 Verify external SCSI cabling is secure.
5 Verify external SCSI devices are good.
Clicking, chirping,
thumping, or rubbing
1 Remove all PCI cards and test unit. If problem does not occur
with cards removed, begin replacing cards one at a time to
determine which card is causing problem. Replace problem
card with known-good card.
2 Remove hard drive. If problem no longer occurs, replace hard
drive with a known-good drive.
3 Replace power supply.
4 Replace processor module.