Silicon Graphics 1200, User Manual

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Chassis Tour
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Table 2-2 provides a summary of the LEDs on the hard drive carrier.
Power Supply LEDs
As Figure 2-10 shows, there are two LEDs next to the power supply.
Figure 2-10
Power Supply LEDs
The amber LED lights when the AC power cord is plugged into the AC power cord
receptacle. This indicates that the power supply is supplying the chassis with +5V
standby for EMP port control. The amber LED turns off when the rocker switch above
the AC power receptacle is switched on and the chassis receives all DC power. A lit green
LED indicates the chassis is powered up.
Table 2-2 Hard Drive Carrier LED State Summary
LED Normal Status During Use Problem Indication
Green
LED
LED blinks during hard
drive disk read and write
activity LED not lit
Red LED LED never lit LED blinks or lit
Green LED
Amber LED