User Guide

Power Mac G4 Cube Troubleshooting -

Symptom Charts

Memory

Error message about memory appears on the screen

1. Reseat SDRAM DIMMs.

2. Verify that only compatible PC-100 SDRAM DIMMs are installed.

3. Run Apple Hardware Test to locate the bad SDRAM DIMM.

4. If a bad DIMM is detected, replace it with one that is known-good.

• 42671 "Power Mac G4 Cube: Must Use 35 mm RAM DIMMs"

• 58684 "Power Mac G4 Cube: Installing or Replacing Memory"

Modem

Dialup software does not initiate a connection

1. The dialup software might be installed incorrectly. Make sure software is fully installed

and all required extensions are enabled.

2. If necessary, reinstall the dialup software and provide the necessary information for

setup.

3. Open the Modem Country Selector utility and make sure modem is set to the correct

country.

Modem drops its connection

1. If the disconnect always happens after a speciﬁc interval of time or after a period of

network inactivity, it could be caused by timed disconnects. Check the "disconnect if

idle" setting in the Remote Access control panel and check idle timeout policy of the

Internet service provider (ISP). Contact ISP or network administrator for more

information.

2. Check both ends of phone cable for damage. Secure phone cable at both ends.

3. Try another cable and phone jack. Use direct modem-to-outlet connection.

4. Conﬁgure the Modem control panel to use the appropriate modem script.

5. Avoid phone line splitters, cable extenders, faulty or overly long phone cables.

6. The phone line may be too noisy to handle the higher modem speeds. Try connecting

at a slower speed or use a generic CCL ﬁle. (If you are familiar with the CCL script

language, you can edit the modem script to force a connection at a lower speed.) If the

symptom continues, contact the phone company to report the bad phone line.

7. Verify if the user has Call Waiting on that phone line. With Call Waiting active, an

incoming call can interrupt the connection. Disable Call Waiting using AT commands

placed in the init string of the dialup application. (Usually the string is *70.)