Sometimes, there may occur an issue of blank or black screen after turning on your desktop or laptop. You may hear some odd beeping sounds too. This is a common issue faced by many Windows users. You may try to restart your system to solve this problem. But if the issue still persists, there may be faulty or malfunctioning hardware. When you turn on your PC, light and CPU fans start working, but there is no display? Well, look no further! This guide will teach you how to fix laptop PC turns on but no display problem.
Table of Contents
- How to Fix PC Turns On But No Display
- Method 1: Restart Your PC
- Method 2: Troubleshoot PC Monitor
- Method 3: Disconnect All Peripherals
- Method 4: Replace Video Card & Expansion Cards
- Method 5: Disconnect All Cables
- Method 6: Reseat Memory Module
- Method 7: Reinstall RAM
- Method 8: Reset BIOS Settings to Default
- Method 9: Replace CPU Fans & Cool The System
How to Fix PC Turns On But No Display
You can analyze this list of beep sounds with their respective responses to understand the issue:
- No beep or Continuous beep sound: If there is no beep sound when the PC is turned on, it indicates a problem with the power supply, system board, and RAM.
- Single long beep along with a single short beep sound: This indicates a system motherboard problem.
- Single long beep along with two short beep sound: This means a display adapter problem.
- Single long beep along with a three short beep sound: It indicates issues with Enhanced Graphics adapter.
- Three long beep sounds: These sounds refer to an issue related to the 3270 keyboard card.
Method 1: Restart Your PC
Make sure that your PC is turning on from an entirely powered off state. In some cases, your computer may face trouble with resuming from standby or sleep or from power-saving mode, which results in the computer being turned on but not the monitor.
Method 2: Troubleshoot PC Monitor
If your computer is turned on but the screen is black, confirm that the monitor is turned on by checking the power lights. A poor connection between the monitor and the CPU may also be the reason for PC turns on but no display issue. Reconnecting the monitor to a computer may fix the issue.
- Press-hold power button until your computer completely turns off.
- Unplug the video cable which connects the monitor to the computer.
- Check the port connectors on the monitor and computer for any damage.
- Make sure that the cable is not damaged. Replace it, if required. Then, reconnect the cable.
- Turn on your PC and check whether the problem is fixed.
Also Read: How to Fix Computer Monitor Display Problems
Method 3: Disconnect All Peripherals
In some cases, specific peripherals connected to your computer may cause the display to not appear. Hence, try disconnecting all the peripherals as follows:
- Turn off the PC and Disconnect all peripherals like printer, scanner, mouse, etc.
- Also, eject DVDs, Compact Discs, or USB devices connected to your PC
Note: You are advised to remove the external devices properly to avoid any data loss.
- Turn on your computer. If it boots up, it means that one of the peripheral devices is causing laptop turns on but has no display problem.
- Reconnect each peripheral back into your computer one by one to identify the trouble-causing device.
- Replace the malfunctioning device when you find it.
Method 4: Replace Video Card & Expansion Cards
Video cards may also get damaged or outdated like any other computer component. It might also get overheated and damaged. Hence, you can replace existing video card with a new one that is compatible with the monitor.
An expansion card is also an adapter card or accessory card used to add functions to the system through the expansion bus. Examples include sound cards, graphics cards, network cards, etc. However, these expansion cards might trigger a problem in the system and cause the laptop turns on but no display issue. Hence, remove all expansion cards from the system and check if the problem is resolved.
Also Read: How to Tell If Your Graphics Card is Dying
Method 5: Disconnect All Cables
If you are still facing the issue, then it is suggested that you disconnect all cables by following the given steps:
- Disconnect all the cables viz. VGA cable, DVI cable, HDMI cable, PS/2 cable, Audio & USB cables from the computer except for the power cable.
- Please wait for some time and connect them back.
- Ensure that you hear a typical single beep sound while restarting your Windows desktop/laptop.
Also, read here to learn about Most Popular Computer Cable Types and their compatibility with monitor models.
Method 6: Reseat Memory Module
If the memory module is loose, it may trigger Windows desktop/laptop turns on but no display problem. In this case,
- Switch off your PC and remove the computer case.
- Remove the memory module from the memory slot on motherboard.
- Put it back after some time.
- Switch on the PC.
This should form a proper connection so that the computer can recognize the memory and the said issue is resolved.
Method 7: Reinstall RAM
A poor connection between the RAM and the motherboard may also cause PC turns on but no display issue. Try reinstalling the RAM, as follows:
- Turn off the PC and disconnect AC power cord from the power supply.
- Open your computer case and remove RAM from memory slot on the motherboard.
- Then, place it properly in its place.
- Connect AC power cord back to the power supply and turn on your computer.
Also Read: How Much RAM Is Enough
Method 8: Reset BIOS Settings to Default
Improper BIOS settings can also be the reason for PC turns on but no display issue. In this case, you can try resetting the BIOS settings to default, as explained below:
- Press power button until laptop/desktop completely turns off.
- Disconnect AC power cord from the power supply.
- Open the computer case and remove CMOS battery on the motherboard using a non-conducting screwdriver.
- Wait for a few minutes and then install CMOS battery back.
- Connect the AC power cord back to the power supply and Turn on your Windows PC.
Also Read: How to Enter BIOS on Windows 10
Method 9: Replace CPU Fans & Cool The System
Another method to fix PC turns on but no display problem is to replace the CPU fans and cool your system down. Constant and continuous overheating will wear down not only the internal components but also your PC. Moreover, fans start spinning with the highest speed which leads to thermal throttling. Do read Top 18 Best Fan Speed Controller Software.. Do read Top 18 Best Fan Speed Controller Software.. Thus, we stronlgy recommend the following:
- Always ensure to keep your computer cool and maintain proper ventilation.
- Leave the system idle for some time when it is subjected to overheating or after continuous usage.
- Add better cooling systems if your computer has damaged air flow cables and dust build-up.
- Replace the cooling fans if required.
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We hope that this guide was helpful and you could fix Laptop or Desktop PC turns on but no display issue. Feel free to drop your queries or suggestions in the comments section below.