{"id":5203,"date":"2011-02-03T11:14:05","date_gmt":"2011-02-03T04:14:05","guid":{"rendered":"http:\/\/ji.itkaset.com\/?p=5203"},"modified":"2020-11-13T07:49:18","modified_gmt":"2020-11-13T00:49:18","slug":"blank-screen-led-error-codes","status":"publish","type":"post","link":"https:\/\/tom.tomwork.net\/?p=5203","title":{"rendered":"Blank Screen LED Error Codes"},"content":{"rendered":"
Battery power LED blinks<\/p>\n
The Battery power LED indicates the condition of the power supply. When starting the computer, or when the computer is in operation, use the chart to identify the power condition.<\/div>\n
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Battery Power LED<\/th>\nComponent Tested<\/th>\nError Condition<\/th>\n<\/tr>\n<\/tbody>\n
Battery power LED off, and Caps Lock\/Num Lock off<\/td>\nBattery or AC Adapter<\/td>\nAC adapter not connected or failure<\/p>\n

Battery low charge or failure<\/td>\n<\/tr>\n

Battery power LED blinking<\/td>\nBattery<\/td>\nInsufficient charge on the battery<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
LEDs near Caps Lock and Number Lock keys blink when starting notebook<\/p>\n
The LED lights near the Caps Lock and Num Lock keys will blink if an error is detected during the start up process. The LEDs will blink a number of times in a sequence and then stop. The number of blinks in the sequence indicates what component caused an error when it was being tested during start up.<\/div>\n
If the LEDs stop blinking and the computer does not start, you can press the power button again to repeat the tests. Count the number of blinks, and use the chart to identify the error condition.<\/div>\n
Knowing the number of blinks is helpful when you contact an HP support agent for technical help.<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n
Caps Lock\/Num Lock LED<\/th>\nComponent Tested<\/th>\nError Condition<\/th>\n<\/tr>\n<\/tbody>\n
LEDs blink 1 time<\/td>\nCPU<\/td>\nCPU not functional<\/td>\n<\/tr>\n
LEDs blink 2 times<\/td>\nBIOS<\/td>\nBIOS corruption failure<\/td>\n<\/tr>\n
LEDs blink 3 times<\/td>\nMemory<\/td>\nModule error not functional<\/td>\n<\/tr>\n
LEDs blink 4 times<\/td>\nGraphics<\/td>\nGraphics controller not functional<\/td>\n<\/tr>\n
LEDs blink 5 times<\/td>\nSystem board<\/td>\nGeneral system board failure<\/td>\n<\/tr>\n
LEDs blink 6 times<\/td>\nBIOS<\/td>\nBIOS authentication failure<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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Error code explanations<\/p>\n
The sections below provide some common explanations for each error code listed in the table above.<\/div>\n<\/div>\n

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AC Adapter not connected or battery low charge<\/div>\n<\/div>\n<\/div>\n
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When the computer is on battery power only and the AC adapter is disconnected, if the Battery Power and Caps Lock \/ Number Lock LEDs do not glow, there is either a very low change or no charge in the battery. Connect the AC power adapter, verify that the battery power LED glows, allow the battery to charge for 15 – 30 minutes and then attempt to start the computer. If it starts, run the battery test and calibrate the battery. If it does not start, if possible, connect a replacement battery to verify that the battery is the problem.<\/div>\n
If the computer does not start after charging the battery, remove the battery and connect the AC power supply. Verify that the battery power LED glows, and then attempt to start the computer. If the LED still does not glow, either the AC adapter has failed, or there is a bad connection between the adapter and the system board. If possible, connect a different AC power adapter to verify that the adapter is the problem, or contact HP for support which may require a service event.<\/div>\n<\/div>\n<\/div>\n

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Insufficient charge on the battery<\/div>\n<\/div>\n<\/div>\n
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If the battery light<\/strong> LED (which looks like a lightning bolt ) flashes, the battery has insufficient charge to start the computer. To resolve this error, try the following solutions.<\/div>\n
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