The most annoying situation for a computer user is when you encounter an operating PC with an unreadable screen.
Your computer is on. You hear the fans spinning and the case chirping, and some lights are lit. But, you don’t see any important signs on the monitor, not even one image or light and description.
It’s a good thing that you’re not the only one, and we’ve collected all possible causes for your problem and a list of possible causes with the solutions.
Learn how to deal with your headaches over blank screens when PC Turns On But No Display.
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PC Turns On But No Display (Causes, Fixes)
Check Your Monitor
The first step is to determine whether the monitor is operating well ahead of it is time to dive into more troubleshooting steps.
Another option is to pair it with an extra computer case and see whether the issue is resolved.
If you’re not connected to a different PC, you can disconnect your monitor from your System and switch it on by itself.
If the problem isn’t serious, your monitor will flash with a light and then brighten up or welcome you with an on-screen message.
Any signal from your monitor means it’s functioning correctly, but it doesn’t provide a sufficient signal to display an image.
In this instance, the situation is that the monitor will have to proceed to the next test, but if it fails, you’ll need for the monitoring device to be sent to repair.
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Check The Connections
Even the most flawless monitors can not be able to turn on because of connectivity issues.
It’s worthwhile to check all related wires, ports, and adapters in your next step in diagnosing.
Check that the power and video cables are securely attached with the screws secured at both ends.
Check your power cable with another outlet and the graphic cable with additional ports.
If nothing changes, opt for a different cable to check if your cables are damaged.
It’s also possible to test a different type of cable depending on the monitor you’re using. For instance, you can connect your monitor using one HDMI cable if you’re using VGA.
The final check is adapters: be sure they’re in good shape and being used in the correct method.
For instance, DVI to VGA converters cannot work in the reverse direction.
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Start The PC From Scratch
The computer doesn’t get up from Standby or Sleep mode and gives you the impression that the computer is working with no display.
It could be due to a variety of reasons for PC Turns On But No Display.
Perhaps you’ve turned off the keyboard or mouse from refreshing your System, or your PC isn’t responding to Power-saving mode or Fast Start.
To eliminate this possibility to rule out this possibility, press the power button briefly to perform a complete shut-off.
Turn it off again and watch the issue disappear.
If it seems to resolve everything, trace the problem’s origins and discover how to keep it from occurring again.
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Level Up Brightness
Computers can reduce the brightness to zero, and you won’t even see a single point.
So, it is possible to confuse this situation with the booting issue that does not display.
Make use of keyboard shortcuts to increase the brightness. Check how this resolves the issue for you.
Try The Wake Action Shortcuts
If your System refuses to boot up, try pressing the Windows Key, Ctrl, Shift, and B simultaneously.
The command restarts the graphic driver, making your system boot with an operational monitor.
Another tip before getting to hardware troubleshooting is to check that you’ve disabled this ” view on second display only” option.
For verification:
- Press the Windows plus the P keys together to navigate to the menu of display switches.
- Press the P key one time more before hitting Enter to bring users to the subsequent display mode.
(There are four different display modes: ” PC screen only,” ” Duplicate on the second display,” ” Extend across all displays,” and ” Second screen only.”
So, you must repeat this process four times to ensure that you didn’t miss any.)
Lower The Screen Resolution
When the screen is black and the issue is triggered by a change in the resolution of your monitor, the resolution is likely too high, and your monitor isn’t able to accommodate it.
Thus, it does not show anything.
In this scenario, you should change the monitor back to the previously supported rate, and it can display again.
The most effective way to do this is by resetting your display back to default settings.
Reset The Monitor
Although the process can differ depending on the manufacturer of your monitor and model, here’s what it typically is to perform an initial reset on your monitor:
- Take a look at the sides of your monitor or back or even the bottom for the buttons for control.
- Click the menu button, then press the down and up buttons to select”RESET” option ” RESET” option.
- Choose your preferred option and follow the next set of instructions.
- Reboot your System, and it will load with an on-screen display.
Alternative Method:
When you’re working with a laptop, or an LCD monitor that doesn’t have physical switches, consider this alternative approach to reduce the resolution of your screen:
- Reboot your System, and wait until the short sound of a beep.
- Use the up button on the keyboard and press Enter.
- Press your ” Shift” key, then press” Tab” and press the ” Tab” button.
- Then, press the left arrow four times within one row.
- Click ” Tab” repeatedly.
- Make use of the left-arrow for reducing the resolution and press Enter.
Boot Your PC In Safe Mode
If you can’t reset the monitor, it’s an option; you can try starting your computer with Safe Mode.
This feature will load your System with the lowest resolution, allowing users to look at Settings and then change everything before returning to normal.
Here’s how:
- Switch off the computer, then switch it on.
- When the System is booting, Hold and press the key F8.
- There are a few options to choose from: pick ” Safe Mode” from them.
- Then, go to System Settings and decrease your resolution in the same way you raised it:
- You can access your Start menu by hitting the Windows icon in the lower-left right-hand corner.
- Click on the small gear icon to open the settings of your Windows Settings.
- Navigate to the System and then Display > Scale and Layout > Resolution of the display.
- Make sure to stick with the suggested rate and keep any changes.
Tweak The Voltage Selector Switch
The Voltage Selector Switch is a physical button located near the bottom of the laptop, which allows you to regulate the internal circuit of your device with the voltage of your input.
If it is not set correctly, the mechanism will exceed or is below the power supply’s input voltage, which can hinder your PC’s ability to boot.
Most often, the default value set in the Voltage Switch doesn’t need any adjustments as long as it is in line with your country’s requirements.
However, if you purchased it from an overseas store or relocated to a different country, you have to make some adjustments.
In the US For instance, in the US, the computer you use can operate with 110 Volts.
If you’re in Europe, You may have to enhance it to the voltage of 230 Volts.
Listen To The Beep Sounds
Most computer models come with an internal speaker on the motherboard to alert you of hardware problems during startup time.
In normal conditions in normal situations, the speaker emits either one or two beep sounds when you press the power button. This signifies that the BIOS has started the machine successfully.
The sound produced might be different when your computer is turned on with the display off.
Sound pattern duration, length, and frequency will differ depending on the root of the problems.
Pay attention to the sound. Write it down, then look it up in your motherboard’s manual.
If you’ve lost instruction manual If you’ve lost the manual, use the following guide to figure out how the voice is trying to communicate to you.
There could be a problem with the memory module cable, graphics card, or the CPU.
Once you’ve decoded the sound, it is easy to resolve.
Disconnect All The Peripherals
Sometimes, the display issue with your System can be caused by an issue of compatibility with any of your peripherals.
Shut down your computer and unplug as numerous USB devices as are possible.
These can range from your Bluetooth mouse and keyboard to cameras and scanners, speakers, etc.
After that, press the power button to switch on your computer.
If the problem seems to have disappeared, reconnect the peripherals one after the other to determine the root cause.
Try any of these strategies to prevent the issue from happening again:
- Update the driver (we’ll describe how to do this in the next sections).
- Contact the manufacturer’s support department to report the problem and receive assistance.
- Look up the device’s model and name, then visit the forums to see if other users have experienced the same issue and what they had planned to do about it.
- Replace the device that is causing problems with an equivalent device.
Update Your Drivers
A damaged or obsolete driver, whether it’s part of the graphics cards, peripheral, or even the essential hardware, can harm your PC until it isn’t able to boot anymore.
Update these file is an amazing solution to the display issue.
The problem is that you cannot access Settings to change anything until you switch on the screen.
If you’ve been able to restore your monitor’s display by taking out a defective peripheral, you’re good to go.
If you’re not sure, then try to start your PC using Safe Mode to be able to see the PC’s fundamental configurations.
Continue with the steps below:
- Enter ” Device Manager” in the search box on the taskbar.
- Simply click the result with the highest score to launch the application.
- Expand a category based on the driver you wish to upgrade.
(It is possible to put it in a category for peripherals, like Bluetooth Cameras, Keyboards, and so on, and the category of display adapters.)
- Then, right-click the device’s name in the entries.
- Select ” Update Driver” and follow the directions on the screen.
- Clear The BIOS Configs
AKA Basic Input/Output System The BIOS, or Basic Input/Output System, is a program built into your microprocessor utilized to launch your operating System.
Is it liable for your computer’s turn-on with blank screens as a crucial boot-up program?
A software error could cause a malfunctioning system.
The good thing is that even if you can’t access the settings because of an unresponsive screen, it is possible to clear the memory by connecting to the BIOS chip within the motherboard.
This then reset your BIOS to its default state.
- Hold on the power button for approximately 10 seconds to turn off the static electric charge.
- Remove it from the source of power.
- Start your computer’s chassis to gain access to its motherboard.
- Find your CMOS Coin Cell battery, then flip the clip that protects it if it has one.
- And then, slide your finger beneath the battery until it pops up from its spot.
- Take about 5 minutes before you replace the battery and connect the power.
Note: If it does not resolve anything, you can try removing the CMOS in the future and then restart your System without it.
The CMOS could be the cause. If it’s depleted, it could hinder your PC’s ability to start.
Check And Reinstall Your Hardware
If you’ve recently rebuilt, cleaned, or upgraded your tower, one or more internal components could have become loose, preventing your computer from loading.
So, it’s a good idea to unzip the chassis, then replace each part of the equipment.
There is a list of three crucial items to be inspected.
Graphics Card
The graphics card, also known as GPU, is a component within your motherboard that handles graphical data and transforms it into meaningful signals to allow your monitor to show the appropriate pictures.
If your monitor doesn’t show anything, the graphics card could be the primary component at fault, particularly when you notice an ” no signal” error on your screen.
Potential problems with the graphic card could be corrosion, dirt, physical damage, being unstable.
It is necessary to take off the unit, wash it with its bracket for holding, and ensure that the bolts are securely fastened.
Here’s how:
- When the computer is unplugged, remove all cables from the rear of the tower.
- Use a screwdriver for opening the enclosure of your System.
- Locate the board and unscrew it off its PCI bracket.
- When you hold your board with the other hand, turn the lever for retention with another hand to release it from the mounting position.
Reconnect the cables and switch on the computer without any graphics cards.
If the monitor doesn’t show up If the monitor does show up, continue with the steps below:
- If you observe any signs of corrosion on the gold pins, soak the surface of the cloth with isopropyl alcohol and gently rub it.
- Then, apply a moist cotton swab or air compressor to eliminate the grease, dust, and other debris. in the fun slot.
- Replace the graphics card and ensure that the clip for ejectors latches to the motherboard. (You’ll hear an audible click if you do.)
- Connect all wires to test your computer.
- If it’s not showing something, try putting the graphics card in another slot as the final option (if the motherboard has more slots that can accommodate graphics cards).
- If your computer continues to turn off with an absence of display, you need to replace the part or take it to a repair shop.
RAM
A weak link between the motherboard’s RAM stick and your motherboard may cause your PC to turn off without displaying.
The clogging of memory slots and malfunctioning or corroded components can have the same effect.
Here’s how you can check:
- Start your computer’s cabinet.
- Find three or four green rectangular sticks that have been inserted into the motherboard grooves.
- Each stick is equipped with two clamps along each edge. Squeeze them until the board is released from their clamps.
- Place the sticks on a clean, lint-free cloth.
- Utilize a cotton swab and an air compressor to clean the dust from the crack.
- Pick any module near the edge, but do not touch any gold connectors.
- Place it in it until you can hear a click from the lock. Repeat the process for the other sticks.
- Check that each wire from the motherboard has been connected to the correct location.
Note: If this doesn’t fix anything, then there’s likely a problem with one of the apertures or models not working correctly.
Here’s the information you need:
- You can activate your System with only one module to test how it functions.
- After that, insert the same module in different slots and test the PC for each attempt.
- Repeat this for all sticks until you find the piece that isn’t sound.
CPU And Motherboard
It is the CPU that acts as the core part that is technically the brain of your computer.
The motherboard is the backbone of the System. The main sheet houses all the different parts and links them with the processor.
There’s no reason to be surprised that even a small flaw in the hardware could result in the doorstop up before your computer.
Since these are susceptible components, you cannot just take them off, clean them, and then reinstall them to determine whether they’re the root cause of your problem.
The best thing to examine the physical device is to find out more about the CPU.
It will let you know when the parts have been incompatible, damaged, or otherwise incompatible.
You’ll then determine the need for professional help.
Visual Check
- Open your computer’s CPU via the open computer tower, and check if the capacitors above the motherboard show rupture, inflammation, or indentation.
- Make sure you check for bent pins that are pointing towards the motherboard.
- Try placing your hand on top of the computer fan and see whether it is blowing enough air.
- Be aware of any noises that sound creaking coming from the CPU fan, indicating a problem with the fan.
Temperature Check
One of the best ways to evaluate your CPU’s performance is to check the temperature within the BIOS.
The trick will only be available if you boot Windows with Safe Mode.
- When you are in Safe Mode, Go into the menu Start, then select the Settings icon.
- Navigate to Update and Security > Recovery > Advanced Startup.
- Click on”Restart Now” or click the ” Restart Now” button to display an additional blue window that reads, ” Choose an Option.”
- Click ” Troubleshoot” and ” Advanced Options” After that, select ” UEFI Firmware Settings.”
- Once the BIOS page is displayed, look for the option to say, ” PC Health Status,” or ” System Hardware Monitor,” or something similar. (It might have a different name for the category according to the model of your computer.)
- Be sure that the temperature of your CPU is not higher than 70degC or 158degF.
(Note this is a reminder that safe limits will vary based on your CPU and PC model, your activity and activities, etc. Take the time to watch this video before deciding that your CPU is running too hot:
You should take your PC to a service center only if you have found something suspicious in the previous examinations.
