Acer AcerAltos 21000 System Manual page 28

# Item
1 LCD Display Screen
2 3.5-inch Diskette
Drive
3 CD-ROM Drive
4 5.25-inch Drive Bays
5 Ventilation
6 SCSI HDD Bays
7 Power Switch
8 System Power LED
9 System HDD Access
LED
10 RDM Active LED
11 SCSI HDD Power
Status
12 SCSI HDD Busy
13 SCSI HDD Failure
System Housing
Description
Indicates boot status as well as any
BIOS check point errors encountered
upon system initialization. Refer to
section 2.1.3 for more information.
A 3.5-inch diskette drive comes with
the basic system.
Also a SCSI CD-ROM drive comes
with the basic system.
Two empty 5.25-inch drive bays allow
installation of additional devices.
Exhausts heat built-up inside the
housing.
Eight empty SCSI HDD bays allow
installation of hot-swap SCSI drives.
The power switch turns the system on.
Lights up (green) when the power is
on. This also denotes that the system
is running on a good supply of AC
power.
Lights up (green) when at least one of
the hard disks is currently accessing.
Lights up (yellow) when an error
condition occurs in the system.
Lights up (green) when the HDD is
connected and ready to go.
Lights up when the HDD is currently
accessing.
Lights up (orange) when the HDD
installed on the backplane board is
bad.
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