Laptop screen is black when turned on and caps lock light flashes. When laptop is unplugged and then plugged in again and turned on screen is still black but caps lock light key is on but not flashing
With the notebook shut down, remove the AC Adapter, remove the battery and then hold down the power button for a full minute. Re-insert the AC Adapter ( leave the battery out ) and see if the notebook will start.
The first thing to always try is resetting your PC. With a laptop, you must unplug it and remove the battery. While the laptop is unplugged and the battery removed, hold down the power button for a minimum of 30 seconds. This will reset the PC. Plug it back in and see if it works now. Always try to reset the PC first, for many different problems.
SOURCE: Compaq M2000 laptop lighting bolt flash 3 times wont start
Could be a bad mother board or a hard drive..see if you can connect the hard drive with a USB on another machine and run a test on it...
SOURCE: my notebook has flashing lights above scroll and
Try to hit the F8 and choose to boot on Safe Mode or Last Known Good Configuration.
SOURCE: I have a HP Pavilion
Hi
Boss you need to mention here in what sequence do the lights blink.
Anyways you can take help from this
Caps Lock/Num Lock LED
Component Tested
Error Condition
LEDs blink 1 time
CPU
CPU not functional
LEDs blink 2 times
BIOS
BIOS corruption failure
LEDs blink 3 times
Memory
Module error not functional
LEDs blink 4 times
Graphics
Graphics controller not functional
LEDs blink 5 times
System board
General system board failure
LEDs blink 6 times
BIOS
BIOS authentication failure
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SOURCE: PRESARIO CQ57-356EA SCREEN IS BLANK BUT IS POWERING UP
If your laptop appears to boot up and the hard disk LEDflashes, then the problem is probably a back light fault. This can be a faultyinverter or a faulty CCFL lamp. Please click on this link and follow myinstructions to identify the fault and possible fix :- http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen
SOURCE: My presesario cq40 cannot turn on...light on the
dude here is ur all tym n anytym fav ans to the Q of caps n num lock blinking n lappy not starting just remove the ram n place dem again in their position n den switch it on again n ur problem is solved for sure :) many providers take advantage n say its mother board or so dun worry for that try this n thank me :D :)
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that didn't work for me but I am thinking I burnt out my cpu processor because the notebook fan was full of dust and it shut down never to reboot. I installed a new motherboard, just waiting on the new processor. Thank you for your input. it was greatly appreciated. I will ask more questions.
No problem ,good luck with that make sure to use some heat sink paste or a copper ship for your heatsink if you peeled off the stick on things on the heatsink.do not leave a space inbetween the heatsink and the processor video chips. better to replace the stick on pads with shims and heatsink paste like artic silver or a good quality paste.
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