Dell Latitude E5470 Owner's Manual

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Dell Latitude E5470 Owner's Manual Manual pdf 51 page image

Amber blinkingpattern Problem description Suggested resolution2,4 Memory Memory/RAM failure2,5 Memory Invalid memory installed2,6 System board: Chipset System board / Chipset error2,7 LCD Replace the system board3,1 RTC Power Failure CMOS battery failure3,2 PCI/Video PCI or video card/chip failureThe blinking patterns will consist of 2 set of numbers being represented by (First Group: Amber blinks,Second Group: White blinks)NOTE:1. First Group: The LED blinks 1 to 9 times followed by a brief pause with LED off at the interval of1.5 seconds.(This is in Amber color)2. Second Group: The LED blinks 1 to 9 times, that would be then followed by a longer pausebefore the next cycle starts again at the interval of 1.5 seconds.(This is in White color)For Example: No Memory detected (2,3), Battery LED blinks two times of amber color followed by apause, and then blinks three times of white color. The Battery LED will pause for 3 seconds before thenext cycle repeat itself again.Battery status lightsIf the computer is connected to an electrical outlet, the battery light operates as follows:Alternately blinkingamber light andwhite lightAn unauthenticated or unsupported non-Dell AC adapter is attached to yourlaptop.Alternately blinkingamber light withsteady white lightTemporary battery failure with AC adapter present.Constantly blinkingamber lightFatal battery failure with AC adapter present.Light off Battery in full charge mode with AC adapter present.White light on Battery in charge mode with AC adapter present.51

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