Question about HP Compaq Presario C700T Notebook

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Laptop monitor comes on bright whitish color

I tried replacing my hard drive in my laptop with a different working drive. When I powered up the laptop the screen went all messy. I immediately turned it off replaced it with my original drive.It was then I noticed that my drive had 2 straps at the leftmost end of the connectors, I don't know if that caused a problem. The Laptop started to have the screen looking bright whitish, but restarted it and it worked fine for a few days, then now I have to use an external monitor, because when it should display it shows only a white screen, then it shows the display for a few minutes or secords and then returns to it bright whitish color.

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May be the LCD display of the laptopisgone or ur VGA adapter has some issues

Posted on Jul 26, 2009

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I have a HP Pavilion g series laptop. The laptop was working fine, I closed the lid for a few minutes and it turned itself off and will not come back on. WHY?


If your laptop won't turn on, you could have any number of problems. The problem might be a genuine power issue derived from either battery failure or simply a loose AC adapter. Conversely, it may only appear to be a power failure, and the problem may lie with another component. Errors in brightness settings and LCD display malfunctions can both make a laptop appear to be powered off, and all these problems will need to be corrected. Look at the battery indicator light on your computer. Is it on? If so, check your brightness settings. If your laptop appears that it is not on, it may in actuality have lowered brightness settings. If the brightness setting is at its lowest setting, the laptop screen will be completely dark, and the laptop will appear to be powered off, even though it is not. Try cranking up the brightness settings. Check your AC power adapter. Is it snugly plugged into the wall or surge protector? Make sure the connection is made and it is not loose. Also, try connecting the power adapter into a different wall outlet. Check the status of your laptop battery by considering how long you have had the same battery. Most modern batteries are only good for about 1,000 full charges. After that point, the battery can and eventually will greatly deteriorate. Replace your battery if necessary. Replace your battery by powering off your laptop and then flipping it over and locating the battery cover outline, which will be near the bottom back of your laptop. Remove any screws with a Phillips screwdriver and pop off the battery cover. Slide out the old battery. Put in the new battery by sliding it in until it clicks, and then replace the cover. Consider replacing your laptop monitor. Your laptop may power on, but if the monitor display does not work, it will appear to be off and you will not be able to operate the machine. Check to see if your current LCD display works by plugging your laptop up to an external monitor using a VGA cable. If the external monitor displays your computer contents, your computer motherboard and underlying systems are still working, but your display will need to be replaced. Replace an LCD display by removing the screws around the bezel of your current display with a Phillips screwdriver. Pop off the bezel carefully and remove it. Then, locate the screws on the two metal brackets beneath the bezel and on either side of the display, and remove these too. Disconnect the inverter cable, which is plugged into the inverter. The inverter is located just beneath the display, at the bottom-center of the laptop. Then, pull back and slide out the old display, and replace it with the new. Put the metal bracket screws back in place, reconnect the inverter cable, and then pop the bezel in place. Replace the bezel screws. Hope this helps.

Jan 21, 2013 | Compaq Presario CQ60-220US PC Laptop

2 Answers

Own a HP Compaq 6710b and does not start when pressing power button


If your laptop won't turn on, you could have any number of problems. The problem might be a genuine power issue derived from either battery failure or simply a loose AC adapter. Conversely, it may only appear to be a power failure, and the problem may lie with another component. Errors in brightness settings and LCD display malfunctions can both make a laptop appear to be powered off, and all these problems will need to be corrected.
Look at the battery indicator light on your computer. Is it on? If so, check your brightness settings. If your laptop appears that it is not on, it may in actuality have lowered brightness settings. If the brightness setting is at its lowest setting, the laptop screen will be completely dark, and the laptop will appear to be powered off, even though it is not. Try cranking up the brightness settings. Check your AC power adapter. Is it snugly plugged into the wall or surge protector? Make sure the connection is made and it is not loose. Also, try connecting the power adapter into a different wall outlet. Check the status of your laptop battery by considering how long you have had the same battery. Most modern batteries are only good for about 1,000 full charges. After that point, the battery can and eventually will greatly deteriorate. Replace your battery if necessary. Replace your battery by powering off your laptop and then flipping it over and locating the battery cover outline, which will be near the bottom back of your laptop. Remove any screws with a Phillips screwdriver and pop off the battery cover. Slide out the old battery. Put in the new battery by sliding it in until it clicks, and then replace the cover. Consider replacing your laptop monitor. Your laptop may power on, but if the monitor display does not work, it will appear to be off and you will not be able to operate the machine. Check to see if your current LCD display works by plugging your laptop up to an external monitor using a VGA cable. If the external monitor displays your computer contents, your computer motherboard and underlying systems are still working, but your display will need to be replaced. Replace an LCD display by removing the screws around the bezel of your current display with a Phillips screwdriver. Pop off the bezel carefully and remove it. Then, locate the screws on the two metal brackets beneath the bezel and on either side of the display, and remove these too. Disconnect the inverter cable, which is plugged into the inverter. The inverter is located just beneath the display, at the bottom-center of the laptop. Then, pull back and slide out the old display, and replace it with the new. Put the metal bracket screws back in place, reconnect the inverter cable, and then pop the bezel in place. Replace the bezel screws. Hope this helps.

Jan 20, 2013 | HP Compaq 6710b Notebook

1 Answer

My inspiron mini 10 wont turn on and it is plugged in. How do I turn it on? the power key does nothing


If your laptop won't turn on, you could have any number of problems. The problem might be a genuine power issue derived from either battery failure or simply a loose AC adapter. Conversely, it may only appear to be a power failure, and the problem may lie with another component. Errors in brightness settings and LCD display malfunctions can both make a laptop appear to be powered off, and all these problems will need to be corrected.

step 1
Look at the battery indicator light on your computer. Is it on? If so, check your brightness settings. If your laptop appears that it is not on, it may in actuality have lowered brightness settings. If the brightness setting is at its lowest setting, the laptop screen will be completely dark, and the laptop will appear to be powered off, even though it is not. Try cranking up the brightness settings.
  • Step 2 Check your AC power adapter. Is it snugly plugged into the wall or surge protector? Make sure the connection is made and it is not loose. Also, try connecting the power adapter into a different wall outlet.
  • Step 3 Check the status of your laptop battery by considering how long you have had the same battery. Most modern batteries are only good for about 1,000 full charges. After that point, the battery can and eventually will greatly deteriorate. Replace your battery if necessary.
  • Step 4 Replace your battery by powering off your laptop and then flipping it over and locating the battery cover outline, which will be near the bottom back of your laptop. Remove any screws with a Phillips screwdriver and pop off the battery cover. Slide out the old battery. Put in the new battery by sliding it in until it clicks, and then replace the cover.
  • Step 5 Consider replacing your laptop monitor. Your laptop may power on, but if the monitor display does not work, it will appear to be off and you will not be able to operate the machine. Check to see if your current LCD display works by plugging your laptop up to an external monitor using a VGA cable. If the external monitor displays your computer contents, your computer motherboard and underlying systems are still working, but your display will need to be replaced.
  • Mar 23, 2010 | Computers & Internet

    1 Answer

    My laptop monitor is not woking


    When you plug the DC power adapter and press on the power button, the laptop starts making normal noises, the LEDs work properly but noting appears on the screen. The laptop will not start.
    First of all, take a closer look at the LCD screen. Look at the screen under bright light. It’s possible that the image is still on the screen but it’s very faint.
    If there is no image on the laptop LCD screen, test the laptop with an external monitor. Connect an external monitor to the VGA port on your laptop and turn the laptop on. You can toggle video output between the internal LCD screen and external monitor by pressing Fn and F4 keys simultaneously on HP laptops, Fn and F5 keys on Toshiba laptops, Fn and F7 keys on IBM laptops. Other laptops may use different key combinations.
    Let’s say the external monitor works fine but the internal LCD screen has no image at all. If that’s the case, your problem could be related to the LCD screen or the video cable. Also, make sure the video cable makes good connection with the motherboard and the LCD screen. Try reconnecting, reseating the cable.
    In my case, both internal and external monitors were absolutely dead. Neither of them had image. That means the problem is not related to the LCD screen or the video cable. From my experience I know that this problem could be related to the laptop memory.
    Try reseating the memory module, maybe it’s not making good connection with the memory slot. Try cleaning contacts on the memory module with pen eraser. Try moving the memory module into another slot. Try replacing the memory module with another known good module, it’s possible that your original module is dead.
    If you have two memory modules installed you can try removing them one by one, it’s possible that one of the modules is bad. Try installing different memory modules into different memory slots.

    In my case reseating, swapping the memory module didn’t help. I was pretty confident that my problem is not memory related and I moved on.
    Try removing battery, hard drive and DVD drive and turning on the laptop without these components.
    Also, try turning on the laptop with an external monitor when the video cable is unplugged from the motherboard. If the laptop start with video on the external monitor, apparently there is something wrong with the laptop display panel.
    Finally, disassemble the laptop and removed the motherboard.
    1. Motherboard. Like on most laptops, in my case the video card is integrated into the motherboard
    2. CPU with heatsink and cooling fan.
    3. Known good memory module.
    4. The power button board witch you need to turn on the system.
    5. Working DC power adapter.

    Still cannot get any video on the external monitor. The system turns on, the cooling fan starts spinning but there is no video.
    At this point I’m 95% sure that the motherboard is dead. CPU failures are not very common, so it must be bad motherboard.

    Oct 16, 2009 | Computers & Internet

    1 Answer

    Cant get it to turn on/ panasonic CF-51 toughbook laptop.


    Here are some troubleshooting hints, see if these will work for you. It is hard to knnow what to do in these situations because there is no way of telling what key combinations etc. were hit.

    Laptop is dead. How to troubleshoot the problem.
    In this post I’ll explain how to troubleshoot a dead laptop and find the problem. The following troubleshooting tips are not model and brand specific, they should work for most laptops.
    Let’s take a look at two different scenarios.
    Example 1. The laptop is absolutely dead.
    When you plug in the power adapter and press on the power button, there is no signs of life at all. The laptop will not make usual noises, LEDs will not light up, the fan will not spin, the screen is blank and black, etc… In short, the laptop is dead.

    What you can do in this case?
    1. Make sure the wall outlet is working and the laptop DC adapter is getting power from the outlet. Try another wall outlet.
    2. Test the laptop DC power adapter, make sure the voltage output is correct. You can test the DC power adapter with a voltmeter.
    3. Let’s say the DC adapter is fine and the adapter outputs correct voltage. In this case unplug the power adapter from the laptop, remove the battery, wait for 1-2 minutes, plug in the adapter and try turning on the laptop again.

    OK, you tested the adapter and it’s bad. If you decide to replace the original DC adapter with a generic one, you’ll have to follow this rule:
    The voltage output on your new adapter has to be exactly the same as on the original adapter. The amperage on the new adapter could be the same or higher.

    If nothing helps and the laptop is still dead, apparently the motherboard is fried or there is a problem with the DC power jack. It’s possible the DC power jack is broken and the motherboard is not getting any power from the adapter. In this case you’ll have to disassemble the laptop and replace the power jack.
    Example 2. When you plug the DC power adapter and press on the power button, the laptop starts making normal noises, the LEDs work properly but noting appears on the screen. The laptop will not start.
    First of all, take a closer look at the LCD screen. Look at the screen under bright light. It’s possible that the image is still on the screen but it’s very faint.
    If there is no image on the laptop LCD screen, test the laptop with an external monitor. Connect an external monitor to the VGA port on your laptop and turn the laptop on. You can toggle video output between the internal LCD screen and external monitor by pressing Fn and F4 keys simultaneously on HP laptops, Fn and F5 keys on Toshiba laptops, Fn and F7 keys on IBM laptops. Other laptops may use different key combinations.
    Let’s say the external monitor works fine but the internal LCD screen has no image at all. If that’s the case, your problem could be related to the LCD screen or the video cable. Also, make sure the video cable makes good connection with the motherboard and the LCD screen. Try reconnecting, reseating the cable.
    In my case, both internal and external monitors were absolutely dead. Neither of them had image. That means the problem is not related to the LCD screen or the video cable. From my experience I know that this problem could be related to the laptop memory.
    Try reseating the memory module, maybe it’s not making good connection with the memory slot. Try cleaning contacts on the memory module with pen eraser. Try moving the memory module into another slot. Try replacing the memory module with another known good module, it’s possible that your original module is dead.
    If you have two memory modules installed you can try removing them one by one, it’s possible that one of the modules is bad. Try installing different memory modules into different memory slots.

    In my case reseating, swapping the memory module didn’t help. I was pretty confident that my problem is not memory related and I moved on.
    Try removing battery, hard drive and DVD drive and turning on the laptop without these components.
    Also, try turning on the laptop with an external monitor when the video cable is unplugged from the motherboard. If the laptop start with video on the external monitor, apparently there is something wrong with the laptop display panel.
    Finally, disassemble the laptop and removed the motherboard.
    1. Motherboard. Like on most laptops, in my case the video card is integrated into the motherboard
    2. CPU with heatsink and cooling fan.
    3. Known good memory module.
    4. The power button board witch you need to turn on the system.
    5. Working DC power adapter.

    Still cannot get any video on the external monitor. The system turns on, the cooling fan starts spinning but there is no video.
    At this point I’m 95% sure that the motherboard is dead. CPU failures are not very common, so it must be bad motherboard.

    Oct 12, 2009 | Panasonic Toughbook CF-51 Notebook

    1 Answer

    SIR, PLEASE GIV ME THE BEST SOLUTION FOR FOLLOWING PROBLEM WITH MY LENOVO 3000 Y410 LAPTOP (WITH XP AS O.S. ) ON MY EMAIL_ID=swatijadhav44@gmail.com AS EARLY AS POSSIBLE. SIR, MY LAPTOP SCREEN STAYS BLACK...


    You can't even get into the BIOS. Hard drive failure?
    Here's what the manual say's about black screen.

    Verify that: The monitor cable is securely attached to the rear of the monitor and to the rear of the computer.
    The monitor power cord is plugged into the monitor and into a working electrical outlet.
    The monitor is turned on and the brightness and contrast controls are set correctly.
    The voltage is set to the correct setting for your country.
    The monitor signal cable is securely connected to the monitor and to the monitor connector on the computer
    .Note: If your computer has two monitor connectors, verify that your monitor is connected to the one in the AGP option connector rather than the one in the rear of the system board.

    If you can check the monitor by using another monitor.
    I suspect hard drive failure. Keep me informed on what you tried and I'll keep checking to come up with solution.

    Sep 23, 2009 | Lenovo 3000 Y410 Laptop

    1 Answer

    HP DV 1000 screen goes dark after boot up. Plug in external monitor and it works fine. Toggle between internal and external and I can get the laptop monitor to come back on for a few min. Turning...


    Your laptop's monitor went bad and needs to be replaced. I had the same problem on an IBM laptop I had. Replacing the monitor costs between $120-220.

    Apr 15, 2009 | HP Pavilion DV5-1000US Laptop

    1 Answer

    Dual Monitor Color/Brightness Differences


    Correct the resoulution is not the same. Also you are using 2 monitors and using the system to power these great displays. Just dont hook up a docking station. The picture gets really bad..

    Feb 13, 2008 | Computers & Internet

    4 Answers

    Laptop lcd display


    sounds like your screen went out, if you need to access whats on your laptop real soon try hooking it up to a desktop monitor via rgb cavble.

    Dec 13, 2007 | Computers & Internet

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