The laptop turns on without anything on the screen
I have my Nec Versa laptop which works perfect when turned on. However when I switch on the power, the front blue power light turns on but without anything on the screen. I have to force the blue light off by pressing down the power switch. I try the turn on/off process for quite a while until the screen finally starts. This process irritates me because sometimes i have to make so many trials or even give up. Any ideas about the causes and solutions?
First of all, I would check the memory modules. It’s possible that one of the memory modules is not making good contact with the slot or failing.
Try reconnecting both memory modules and test the laptop.
Try removing memory modules one by one and test the laptop with only one module installed. When the faulty module is removed, the laptop should start properly.
Try installing different memory module into different slots on the motherboard. It’s possible not the memory module but the slot itself going bad.
April 28th, 2010 at 9:11 pm
As suggested try to reset the memory and try one stick at a time to see if you have a bad stick. if that does not work try hooking the computer up to a external monitor and see if it will display on the external monitor. if both of those do not working you are looking at a bad CPU or video chip (part of the motherboard)
Mike
July 4th, 2010 at 7:47 am
I have the same problem as above. Have tried the memory test and the external monitor test with no success.
How does one test the video chip?
Regards
August 18th, 2010 at 8:23 am
This doesnt sound like a memory issue. Connect the laptop to an external monitor. If it works every time then there is an issue with the LCD screen. I suspect this more than likely a motherboard related issue.
August 18th, 2010 at 9:40 pm
hi, i have a similar (??) issue…
i have toshiba satellite m505 that i bought in January.
last friday it was working okay, i charged the battery to full and then unplug it when the charging is done.
the next morning when i tried to turn it on, it booted like usual, and the startup programs were loading fine. but after that, it went freezing and i could not do anything but to turn it off by pressing the power button.
when i tried to turn it up again, it turned on just fine, the power LED is flashing, but the hard drive LED flashed for one second, and then went off again. Nothing happen. my hard drive won’t start.
the next day, i tried to turn it on again, hoping that i didnt have to take it to toshiba service. this time it could boot to windows (i’m using vista home premium) but there was an error message saying there was a corrupt file or missing file, i think something about NOS or dll files. my laptop worked fine for a few moment, before the screen went blue and i read an error message sayng that there might be some installation that caused the problem. i turned the laptop off by prssing power, and now the hard drive wont start again.
last friday night, i remember installing printer but i dont really believe that installing printer might lead to this…
please help me. i have a thesis to make and i desperately need my laptop.
August 19th, 2010 at 4:31 pm
LCD and invertor tests ok. No voltage coming from board to invertor. Teted using multimeter on pin one of the board connector then grounded the other and no 19v only getting a 3.5v reading from another pin.
What would be causing this no power to invertor?