Acer Altos R480 F4 User Manual page 13


Check that relevant switches and jumpers on the hard drive and on the backplane
board are set correctly.
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 activity indicators do not light.
Do the following:

Make sure the correct network drivers are loaded on the system.

Network might be idle.