Acer Altos G520 series - Manual (Page 143)

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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 Location Color Correction
System
fault Visible fault
warning Control
panel and
board rear
left corner Green or
Amber • Amber =
critical error or
non-
recoverable
• Amber blink =
non-critical
ATA
activity Control
panel Control
panel and
board left
side Green Blinking =
Activity. No action
required.
Memory
fault 1-6 Identify
failing
memory
module DIMM end
front of
board Amber On = Fault
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