Dell STUDIO XPS M1640 Setup Manual page 21

7 Power light – Illuminates when the
computer is turned on. The different
lights indicate the following:
On Battery Power:
• Solid white ‑ computer is running
on battery power
• Solid amber ‑ battery is low
• Flashing amber ‑ battery is critically low
• Blinking white ‑ computer is
in sleep state
On AC Adapter :
• Solid white ‑ computer is powered on
and battery is charged
• Blinking white ‑ computer is in standby
state
Using Your Studio XPS Laptop
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