User Guide
Table Of Contents
- Notices
- Important safety instructions
- 1 System tour
- 2 System setup
- 3 System upgrade
- 4 BIOS setup
- 5 Troubleshooting
- Appendix A: Acer Altos R910 rack installation guide
- Appendix B: Memory configuration options
- Appendix C: Integrated SCSI hardware RAID configuration
- Index

1 System tour
14
Rear panel LED indicators
Below table lists the LED states on the rear panel.
Item
LED
indicator
Function Color Description
A1 Hot-swap
power
supply
module
status
indicator
Power
good
indicator
Green, on System has power
applied to it.
A2 Fault
indicator
Amber, on • Power rail failure.
• Power supply is in a
latched state.
Amber, off • Power supply module
failure, +3.3 VSB is
lost.
• System is not powered
on.
A3 DC OK
indicator
Green, on DC power cord is plugged
into an active DC power
source.
B System ID
indicator
Blue, on System identification is
active.
Blue, off System identification is
disabled.