Acer AT350 F1 - Manual (Page 124)

5 System troubleshooting 112
Optical drive activity indicator does not light.
Do the following:
• Make sure the SATA and power cables are properly connected.
• Check that relevant switches and jumpers on the drive are set
correctly.
• Check that the drive is properly configured.
Optical drive tray cannot be ejected.
Insert the tip of a paperclip into the small hole on the optical drive.
Slowly pull the tray out from the drive until the tray is fully extended.
Optical drive cannot read a disc.
Do the following:
• Make sure you are using the correct type of disc.
• Make sure the disc is properly seated in the drive.
• Make sure the disc is unscratched.
• Make sure the drive’s cables are properly connected.
Newly installed memory modules are not detected.
Do the following:
• Make sure the memory modules specifications comply with the
system requirements.
• Make sure the memory modules have been populated according
to the system guidelines.
• Make sure the memory modules are properly installed on their
mainboard slots.
Network connection indicators do not light.
Do the following:
• Check the cabling and network equipment to make sure that they
are in proper condition.
• Reinstall the network drivers.
• Try another port or hub on the switch.