Western Digital My Book Premium ES Edition 500 GB WDG1SU5000 Manuale Utente

My Book Premium ES Edition | 3

The LED indicators function differently depending on the interface used (USB or eSATA).

The Power/Activity and Capacity Gauge LEDs are two concentric rings on the front panel of the drive. The 
outer ring is the Power/Activity LED and the inner ring is the Capacity Gauge LED. 

Capacity Gauge
The Capacity Gauge (inner LED) consists of six sections which illuminate in a clockwise direction to indicate 
space used on the drive. Each section represents approximately 17 percent of disk space. Because this drive is 
preformatted and contains software and utilities, the first section is illuminated upon installation. The Capacity 
Gauge is enabled only through installation of its driver from the CD, which must be installed on each system to 
which My Book is connected.

Capacity Gauge Activity
The Capacity Gauge is updated automatically upon drive usage. In Windows, you can manually update the 
Capacity Gauge by right-clicking the Button Manager icon in the system tray then click outside the pop-up 
menu to close it.

In eSATA mode, both concentric rings light up when the drive is on and rotate clockwise during drive activity.

Note: Capacity Gauge is not available in eSATA mode.

Steady

Power-on state or power-save mode

Fast flashing (for approx. 3 seconds)

Transitioning to system standby

Slow flashing (every 5 seconds)

System standby

Rotating clockwise

Drive in use

1SU_QIG-200_MLT.book  Page 3  Thursday, December 14, 2006  5:57 PM