Bootable Cd-Rom Is Not Detected; Led Information - Acer Altos G520 series User Manual

the SCSI bus. See your drive documentation for details on setting
the SCSI ID for your drives.
• If using ATA drives, verify that the master/slave settings are set
correctly. See your drive documentation for details on setting the
master/slave settings.
• If using a RAID configuration with SCSI or SATA drives, make sure
the RAID card is installed correctly.

Bootable CD-ROM Is Not Detected

Check the following:
• Make sure the BIOS is configured to allow the CD-ROM to be the
first bootable device.

LED Information

The Acer Altos G520 includes LEDs that can aid in troubleshooting your
system. A table of these LEDs with a description of their use is listed
below.
LED Name Function
System Visible fault
fault warning
ATA Control
activity panel
Memory Identify
fault 1-6 failing
memory
module
Location Color
Control Green or
panel and Amber
board rear
left corner
Control Green
panel and
board left
side
DIMM end Amber
front of
board
133
Correction
• Amber =
critical error or
non-
recoverable
• Amber blink =
non-critical
Blinking =
Activity. No action
required.
On = Fault