Acer Aspire E1-531 Acer Aspire E1-531 and E1-571 Notebook Service Guide - Page 38

System LED Indicator Item Lock System state HDD access state Wireless state Power button backlight Battery state Specification N/A • Blue color solid on: System on • Blue color and amber color off: System off • Amber color blinking: S3 state Reflects the activities of the HDD or Card reader access • Amber color if a wireless device is active • Blue color solid on: System on • Blue color off: System off Charging • Amber solid on - Battery charging with AC • Blue color solid on - Battery full • Amber color blinking - Battery abnormal stop charging or battery in low power state Discharging • Amber color blinking - Battery in critical low state • Amber color off - Discharging state System DMA Specification (N/A) Hardware DMA DMA0 DMA1 DMA2 DMA3 DMA4 DMA5 DMA6 DMA7 NOTE: ExpressCard controller can use DMA 1, 2, or 5. System Function 1-31 Hardware Specifications and Configurations