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09-28-2010 03:16 PM
Hi... Ham using HP pavilion DV41415TU. My laptop is not booting up... when i switched it on CAPS LOCK and SCROLL LOCK are flashing and the screen is dark[no display].I have tried switching it on with and without the battery[using d power cable]. Waiting for your response. Plz assist me asap.
09-28-2010 03:55 PM
thats not a good sign could be 1of many things and it could be hard to trouble shoot it but ill try to help
did it ever get a blue screen saying machine check exception recently then shut down before this happend?
does it post (power on self test) display the first hp logo right as soon as turned on (before windows boots)
09-28-2010 10:15 PM
Hi, if your CAPS and SCROLL lock are blinking, it means that the computer is telling you the main problem. Now what you have to do is count how many times it blinks between pauses. (For example: blink, blink, blink, pause, blink, blink, blink = 3 flashes or 3 blinks) This is a code and the computer is trying to give you a specific area in which to troubleshoot the problem. The meaning of these codes are known by the phone tech support only, so if you're still in warranty, give HP a call.
The article below is from the troubleshooting steps of no boot issue for your specific laptop model.
09-28-2010 10:57 PM
mabey this will help pin point the issue a is definatly a hardware problem
|Battery power LED off, and Caps Lock/Num Lock off||Battery or AC Adapter||AC adapter not connected or failure|
Battery low charge or failure
|Battery power LED blinking||Battery||Insufficient charge on the battery|
|Blink: 1 - Caps Lock/Num Lock||CPU||CPU not functional|
|Blink: 2 - Caps Lock/Num Lock||BIOS||BIOS corruption failure|
|Blink: 3 - Caps Lock/Num Lock||Memory||Module error not functional|
|Blink: 4 - Caps Lock/Num Lock||Graphics||Graphics controller not functional|
|Blink: 5 - Caps Lock/Num Lock||System board||General system board failure|
|Blink: 6 - Caps Lock/Num Lock||BIOS||BIOS authentication failure|
05-01-2012 01:17 PM
Actually that worked !! Starting the laptop, the screen remains blabk and the scroll and caps lock key do blink in series of 4 blinks before a pause. So that means the graphics controller is not functional. Any idea where I go from here?
09-25-2012 06:37 AM
That sounds like a hardware issue, you can follow this link to interpret blank screen LED error codes to try and nail it down.