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?
September 11th, 2010 at 11:55 pm
i have a toshiba dynabook that i bought in japan and heres my problem..when i turn on my laptop using battery,it boot as normal then all of a sudden i will heard some beep and see some small line appear in the screen and sometimes the screen will be garbled and sometimes it will hang..using ac adapter,when i turn on the laptop the power indicator is on,the memory indicator is flashing but screen is black..i will turn it off pushing the turn and off button and after several attempts it will work as normal..problem occur only when im turning the laptop on.could it be a bad memory module??any suggestion??thanks..
September 12th, 2010 at 6:14 pm
I really like your website, it gives me a lot of knowledge to understand the problems. I have a little problems related to my Compaq Presario F500, when I turn it on, I have to keep tapping either Esc & F1 keys at the same time, or sometimes I have to tapped ESC, F1, & F12 keys at the same time to make the LCD screen dispaly. If I don’t do it, it just has power on without display.
Your expertise is appreciated
September 14th, 2010 at 9:42 am
I have a year and a half old ASUS G50vt-x1 from Bestbuy. Recently, the Bios started looping and Windows Vista would never load. Before that, it had gotten a virus and trojan that were removed. Could be related or not. Concerned that virus could still be on the machine, I decided to do a full recovery/restore. Everything was wiped. I then went to the ASUS site and dowloaded all updated drivers and BIOS. It worked but I had a lot of lag and the Memory and RAM kept acting busy and full which they shouldn’t have been. Before I had a chance to work on that problem, I had left the computer in sleep overnight, the next morning, it would turn on, the fan will come on, the disc drive works, but the screen is black. Nothing else seems to happen. No beeps, no acting like it’s doing anything at all no matter what buttons I push. No noise from the hard drive or anything. Just power lights on, fan does start, and disc drive works. Black screen. Help! I do not have spare parts to test everything, and was wondering where to start? Replace hard drive? I can’t recover because even though I can insert discs, I see nothing. I may try hooking it to an LCD screen to see if I see anything, but if that doesn’t work, what do you suggest? Hard drive? RAM stick? Video card? motherboard?
September 14th, 2010 at 2:29 pm
I have a toshiba 6100 pro and am getting a error message on start up. With the battery removed I get dot-dash-dot-dot-dot-dot-dot-dash and with the battery installed I get dot-dash-dot-dot-dash-dash-dot-dash . Toshiba says the error codes are a dealer item not user . I found some links on line but they were all bad . If I knew what the codes were I could trouble shoot and hopefully fix it .
Thanks for any help
September 14th, 2010 at 2:42 pm
To Toni
Pull the hard drive and make a clone on another machine befor you start any troubleshooting . With it hooked to another machine you will be able to check condition in disk manager . reinstall if it is good and hook to a spare lcd . If you get a picture use task manager to check what is using all your cpu and slowing it down. On my hp the virus was in the chip set so I had to remove the bio battery along with the restore . Nothing was broken and now it works fine for a 9 year old .
October 9th, 2010 at 4:09 am
power on continous but no display
October 9th, 2010 at 5:18 am
i have lenove 2049 laptop but problem is that laptop gets power on but no display.i cheked on another screen also but still the same problem is there give me the solution one by one chieplevel also
October 23rd, 2010 at 4:53 pm
We have a Toshiba Satellite A105-S2031. Laptop has 2 gigs of memory. It had been getting hot on the bottom of the case recently and freezing internet pages. Now…
On start up, laptop freezes at “In Touch With Tomorrow TOSHIBA” screen. Neither of the 2 choices offered (F2 of F12) work. Nor does any attempt to start in safe mode. Removed memory in various configurations resulting in no change to blank screen with hard drive clicking. Even tried installing original memory just in case one of the current module went bad. Same results depending on which bank I used. I would assume that even if the hard drive was bad, I should be able to reach the set up screen??? Any suggestions? Thank you, Ralph
October 23rd, 2010 at 6:33 pm
Ralph Fitzsimons,
Have you tried removing the hard drive? A failed hard drive might halt the entire system.
Remove the hard drive and test the laptop again. Try RAM modules one by one. Can you enter the BIOS setup menu this way?
October 28th, 2010 at 11:43 pm
Hello,
I was deleting files(pictures, music etc) from a friends Toshiba A135-S2346 Sat laptop yesterday. All was going well as I deleted the files. After about 15 minutes the screen froze, I turned off the laptop and it would not restart. The DVD drive will not open and the LED light for it will not come on.There is NO DISC in the player.
I get a yellow light on the start button, fan will come on, but blank screen. Only the battery or AC power lights come on, on the left front of the laptop, the other light do not. I am affraid my friend will think I caused this situation.
Please, please help me.
Regards, Bruce Joe Wilder
October 29th, 2010 at 8:15 am
Bruce Joe Wilder,
1. Turn off the laptop, unplug the AC adapter, remove the battery. Wait for a few minutes. Now plug the AC adapter and try turning it on again.
2. If #1 doesn’t help, try removing memory modules one by one. Test the laptop with only one memory module installed. Could be faulty memory.
November 12th, 2010 at 4:42 am
my laptop just wont boot up, it’s a hp nc6120 it had vga issues although it kept working but one day it jes wont boot up at all, when i plug in the power cable the leds dont work after pressing the power button. But if i press the power button with only the battery the led’s show some sign of life but it still wont boot. wat to do??
November 22nd, 2010 at 6:51 am
I knocked my office CPU off my desk onto the tile floor 3 feet down. It didn’t turn off, but the mouse and keyboard wouldn’t work. I turned it off and back on and now I have a black screen with one sentence at the top “Missing Operating System”. Not good. Also, the CPU makes a beeping noise like an alarm. What could possibly be the problem?
December 1st, 2010 at 9:54 am
Hello,
I have a HP Compaq 6510b business notebook.recently it developed a problem that has me completely baffled.when i boot the notebook the screen is unusually bright.the startup procedure runs however albeit very slowly.please note the monitor screen continues to be extremely bright.i can only make out a faint semblance of a otherwise normal desktop with a seeming lag in mouse pointer movement.
i run windows vista business edition.I sincerely hope you can help..
Thank you,
Rohit
December 4th, 2010 at 4:59 pm
Hi, Toshiba Qosmio X300 have bad GPU, how find cheaper and compatible GPU for this laptop and how to find connector type of GPU card.
Thanks
Khan
December 29th, 2010 at 10:32 am
I have a problem with my laptop similar 2 yours. My Acer Aspire One starts up normally, but after the blue aspire one screen, the screen goes black, the cursor appears then nothing else happens. Any help appreciated.
April 17th, 2011 at 2:25 pm
im having a problem with my emachines e525 screen ive just replaced it with a new one as other got cracked and now the computer is turning on but the screen is black ive tested the screen in another computer where it worked fine and also tried to connect to my tv with no joy thanks darren
May 16th, 2011 at 7:08 am
Hi,
My Toshiba Satellite A65-S1062 won’t start after I replaced the hard drive. I don’t get the Toshiba splash screen, just a blank screen so I can’t even get to the BIOS. I re-installed the original hard drive, same problem. I had the battery installed when I swapped hard drives, could this be the issue?
Thanks!
May 16th, 2011 at 10:03 pm
Hubert,
Make sure the hard drive is connected correctly. It’s not a very good design.
The hard drive has two rows of pins and there are two rows of holes on the connector. When you plug in the hard drive it’s possible you are connecting only one row of pins. I hope you understand what I’m talking about. I’ve done it myself before.
Put your laptop on a side and plug in the hard rive vertically. Do it slowly.
October 22nd, 2011 at 2:36 pm
When I power up my laptop (HP G60 438NR)I just get a black screen. Before this occur I was experimenting an error at start up. After searching that error it was related to a corrupted registry or a bad hard drive. I access system recovery and it acknowledge me to run a hard drive test under the BIOS screen before proceeding w/ the re-install of windows. So I reboot the laptop and access the BIOS to perform the test. It gave me “hard drive test failed” so I knew I needed a new hard drive. But after pressing “ok” on the result screen, the screen just froze. So after about an hour I decided to turn off the laptop by pressing and holding the power button until it turn off. Waited a couple of minutes then turn it back on and now I just get a black screen. Nothing at all comes up not even the screen you get where you can access the bios or the Hp screen at start up. All lights come on when I power up the laptop. The wireless light is orange. I can hear the fan running while the laptop is on and the hard drive as well. Tried connecting the laptop to another monitor but no go. Could it be that the video card on the laptop gone bad? What else can I try to make sure it’s the video card or the actual screen? If it’s the video card, how much does it come up to replace it? Thanks