ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Laptop Turns On But Screen Is Black

Updated on June 7, 2020
computercasefiles profile image

Computer technician with 15 years in the industry. I hold an A+ Certification, as well as a Bachelors of Science in Information Technology.

The topic I want to talk about today, is just simple and very basic computer troubleshooting and maintenance. Keep in mind that you may have already discovered some of these techniques, but then again you may not have come across it in the way that I am going to explain. Also, keep in mind that each computer repair technician develops their own way of doing things and nothing is actually strategic, simply tried and true methods a lot of times and hands on experience.

Basic Hardware Troubleshooting
Question 1. Why does my screen remain black when I boot up? Computer turns on but black screen.

Answer: There could be a few different reasons this happens.
reason 1. Bad memory module. Sometimes they go bad, you're not responsible for it, there's nothing you've done wrong. Memory Modules sometimes just give out. Turn your computer completely off, unplug from power source, remove the ram cover door and first try reseating the ram cards. Ex: if you have 2 modules just reseat them in opposite position than they were before. Sometimes this works! If you only have one module, just remove it and reseat it in the opposite ram slot. Power your computer back on.. if it worked then your system will possibly notify you of the change in memory and select F1 to continue.

If you still have a black screen after this method and booting back up, consider inserting new ram cards. Shut your computer off, unplug the power adapter, remove the inserted ram cards and replace with new one. Plug your adapted back in and power on your computer. If this worked, your system will notify you of the change upon boot and go ahead and select F1 to continue.

If you still have a black screen after you power up then the issue doesn't lie with the memory modules. So there are a couple of other things to check out.
First let's do a hard reset to dispense all negative power and reset your PC.

Shut your computer down, unplug from power source, remove the battery and ram cards. Hold your power button down for 30 seconds. After you hold the power button down for 30 secs, reseat your ram cards, do not insert battery and connect your adapter to your power source, go ahead and push your power button as normal to power it back on, do not hold down.

If this works and your display is visible, you simple had negative power flow and there's really no issue at all. Ever so often a computer can become this way due to daily usage. Doesn't mean you have a battery problem or a problem with your power adapter. What you've encountered is simple negative energy flow.

If this didn't work and you still get a black screen, the next thing to check is the CPU/heatsink/fan.. things under the hood. I wouldn't suggest to anyone to try this unless you have some experience with removing your systems casing so you can get to this hardware.

Your CPU/Heatsink/Fan is nestled inside attached to the motherboard. Depending on the model of computer you have, it may be integrated to the motherboard and if this is the case, you really must know what you're doing to attempt such a troubleshooting technique.

However, what we're looking for is a gray paste that's applied to the CPU, it's called thermal paste. Sometimes this paste becomes hardened and could sometimes chip away from the CPU as it becomes crumbled sometimes. This leaves the CPU in a position to overheat due to loose compound. So what you want to do is remove the heatsink/fan unit so you can get to your CPU and remove this paste gently with a cotton swab, slow gentle pressure. Then apply fresh application of thermal paste to the CPU, about half the size of a small pea, don't need too much. Once you acheive this, go ahead and test it out to see if this solves the issue.

Other things to check:
If reapply thermal paste to the CPU, check to make sure that your heatsink/fan works properly. You can do this by checking for common red flags.
1. Does your fan make an unusual sound or noise while computer is turned on
2. Make sure that your ventiliation is clog with dust/dirt/ or debris
3. Do you hear the fan running during anytime when the laptop is powered on
4. Does the copper part of the heatsink unit get really hot.
5. Is your fan connected to the motherboard (normally has a small connector wire with white connector on the end)

Well these are some of the most common issues that you may be having if your screen is black and have no display when you power on your computer.

Another issue may be
Screen gone out
May not have a hardware issue at all, you just may need to replace your screen. So if you think this is the issue you need to check for one thing before getting a new screen. First check that your LCD connector isn't bad. On occassion I've seen this problem occur. Sometimes connectors wear down or out and loose contact capability. Since LCD connectors are fairly inexpensive, I'd give this a try first before investing in a screen replacement.

This content is accurate and true to the best of the author’s knowledge and is not meant to substitute for formal and individualized advice from a qualified professional.

© 2020 ComputerCareClinic

Comments

    0 of 8192 characters used
    Post Comment

    No comments yet.

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://corp.maven.io/privacy-policy

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
    ClickscoThis is a data management platform studying reader behavior (Privacy Policy)