Acer Aspire E1-471 Acer Aspire E1-431 and E1-471 Notebook Service Guide - Page 53

System LED Indicator Lock Item System state HDD access state ODD activity state Communication state Power button backlight Battery state Back up state Arcade module state Specification  Caps Lock on = Blue  Caps Lock enabled in S0, S1 on = Blue  Blue color on: System on  Blue color and orange color off: System off  Breeze mode Orange: Stand-by  Orange color on: S3 HDD access active = Blue (Fast blinking means HDD is running or accessing to data) ODD active = Green or Orange (depends on module) Blue color: 3G on, both 3G and WiFi on Orange color: WiFi on  Blue color solid on: System on  Blue color off: System off  Full charging = Blue  Battery charging = Orange  Battery low = Breeze mode Orange (1 sec on, 3 sec off)  Battery critical low = Blinking mode Orange (1 sec on, 1 sec off) Back up active = Blue Arcade module active = Blue System DMA Specification Legacy Mode Power Management DMA0 Not applicable DMA1* Not applicable DMA2* Not applicable DMA3 Not applicable DMA4 Direct memory access controller DMA5* Not applicable DMA6 Not applicable DMA7 Not applicable *ExpressCard controller can use DMA 1, 2, or 5. Hardware Specifications and Configurations 1-43