Fixed - Computer Turns On But No Display & No Signal In Monitor | CPU Fan Spinning But No Display

Tech Help Sourav

14 Jun 202103:46

Summary

TLDRThis video tutorial guides viewers on troubleshooting a computer that powers on but fails to display anything. It covers resetting BIOS settings to default, cleaning and reinserting RAM as potential solutions. If these steps don't resolve the issue, the video advises seeking professional repair. Additionally, it addresses the CMOS battery issue causing incorrect date and time, suggesting how to update BIOS settings to fix it.

Takeaways

🔌 If your computer powers on but doesn't display anything, check for lights and fan activity to confirm it's on.
⏲️ To reset BIOS settings, remove the CMOS battery, wait for a few minutes, then reinsert it.
🔍 Improper BIOS settings can cause a black screen; resetting to factory settings may resolve this.
💾 RAM issues are common for no-display problems; remove, clean, and reinsert the RAM sticks.
🧽 Use an eraser to clean the RAM contacts for better connectivity.
🔄 Try different RAM slots or different RAM sticks if the initial ones don't work.
🛠️ If cleaning RAM doesn't solve the issue, consider taking your computer to a professional repair shop.
🗓️ A CMOS check or date/time error usually means the CMOS battery needs replacing.
💡 Pressing F1 during a CMOS error allows you to enter BIOS utility settings to update the date and time.
📢 The video offers solutions for a common issue and encourages viewers to share their experiences or ask for help.

Q & A

What is the most common issue when a computer won't turn on?
-The most common issue is when the PC powers on but doesn't display anything on the monitor, even though you can see lights on the case and hear fans running.
How can you reset your BIOS settings to default?
-To reset BIOS settings to default, you should remove the CMOS battery from your motherboard, press and hold the power button for 20 seconds to release residual electricity, wait for 2-5 minutes, and then reinstall the CMOS battery.
What is the role of the CMOS battery in a computer?
-The CMOS battery maintains BIOS settings and powers the system clock when the computer is off. If it's failing or drained, it can cause issues like a black screen or incorrect date and time.
Why should you clean the RAM stick if your computer doesn't display anything?
-Cleaning the RAM stick with an eraser can remove dust or oxidation that might be preventing it from making proper contact with the memory slot, which could cause no display issues.
What should you do if cleaning the RAM doesn't fix the no display issue?
-If cleaning the RAM doesn't resolve the issue, try inserting the RAM into a different slot. If that doesn't work, try using a different RAM stick, preferably of the same model, from a friend or colleague.
What does it mean if you see a 'CMOS check' or 'Bad date/time not set' error after booting?
-A 'CMOS check' or 'Bad date/time not set' error indicates that the CMOS battery might be failing or drained. You should press F1 to enter the BIOS utility settings and update the date and time.
How do you save the BIOS settings after updating the date and time?
-After setting the correct date and time in the BIOS, you should press F10 to save the BIOS settings. The computer will then restart, and the operating system should load normally.
What should you do if none of the suggested solutions work for your computer?
-If none of the solutions work, it's recommended to take your computer to a professional repair shop for further diagnosis and repair.
How can you help the video creator if you have successfully fixed your computer using their advice?
-You can let the video creator know which method helped you by commenting on their video. Sharing your experience can also provide additional insights and help others facing similar issues.
What should you do if you have difficulty understanding something in the video?
-If you have difficulty understanding any part of the video, you can leave a comment in the comment box asking for clarification. The video creator or other viewers might be able to assist you.
How can you support the video creator if you found the video helpful?
-If you found the video helpful, you can support the video creator by liking, sharing, and subscribing to their channel. This helps them reach a wider audience and continue creating helpful content.

Outlines

00:00

💻 Fixing a Computer with No Display

This video tutorial addresses the common issue of a computer that powers on but doesn't display anything on the monitor. The host outlines a step-by-step approach to troubleshoot and fix this problem. The first step is to force shut down the computer, disconnect the power cord, and open the case to reset the BIOS settings to default, which can sometimes resolve boot issues. If the problem persists, the video suggests removing and cleaning the RAM, as faulty or improperly seated RAM is often the cause of no display. The host demonstrates how to clean the RAM with an eraser and reinsert it, and also advises trying different RAM slots or even borrowing RAM from another source to test if the issue is resolved. If all else fails, the video recommends taking the computer to a professional repair shop. Additionally, the video addresses the CMOS check error, which indicates a failing or drained CMOS battery, and guides viewers on how to update the date and time in the BIOS to resolve this error.

Mindmap

Keywords

💡Computer boot

Computer boot refers to the process of starting up a computer system after power-on. It involves loading the operating system into the computer's memory and preparing the system for use. In the video, the main issue addressed is when a computer powers on but does not display anything on the monitor, which is a boot failure. The script provides solutions to troubleshoot this problem.

💡Display

A display in the context of computers is the visual output device, such as a monitor or screen, that presents information to the user. The video discusses a common issue where the computer powers on, but there is no display, indicating a potential hardware or software problem that prevents the operating system from being loaded or displayed.

💡BIOS

BIOS stands for Basic Input/Output System, which is firmware that initializes and tests computer hardware components during the boot process. The video mentions resetting the BIOS to factory settings as a potential solution to the boot issue, suggesting that improper BIOS settings could lead to a black screen.

💡CMOS battery

The CMOS battery is a small, coin-shaped battery that powers the CMOS RAM in a computer's motherboard, which stores BIOS settings. The video script describes how to remove and replace the CMOS battery to reset BIOS settings, which is a common troubleshooting step for boot issues.

💡RAM

RAM stands for Random Access Memory, which is the hardware in a computer that temporarily stores data for quick access by the processor. The video identifies RAM as a common cause of no display issues, suggesting that removing, cleaning, and reinserting the RAM might resolve the problem.

💡Memory slot

A memory slot is the physical location on a computer's motherboard where RAM modules are inserted. The video script instructs viewers to remove RAM from the memory slot, which is a step in the troubleshooting process to check if the RAM or the slot itself is faulty.

💡Eraser

An eraser is a tool used to remove pencil marks or other materials. In the video, it is suggested to use an eraser to clean the RAM stick, which helps in removing dust or oxidation that might be causing a poor connection between the RAM and the memory slot.

💡AC power cord

The AC power cord is the cable that connects a computer to a power outlet, providing electricity to the system. The video script instructs viewers to disconnect and reconnect the AC power cord as part of the troubleshooting process, which can help reset the system and clear any power-related issues.

💡Residual electricity

Residual electricity refers to the remaining electrical charge in a system after it has been disconnected from the power source. The video mentions releasing residual electricity by holding the power button, which is a step to ensure that all power is drained from the system before attempting to troubleshoot.

💡CMOS check

A CMOS check is a type of error message that indicates a problem with the CMOS battery or the system's date and time settings. The video script provides instructions on how to address a CMOS check error by updating the date and time in the BIOS settings, which is a common fix for such issues.

💡Repair shop

A repair shop is a business that provides services for fixing and maintaining various items, including computers. The video concludes by suggesting that if all other troubleshooting steps fail, the computer should be taken to a repair shop, indicating that professional assistance may be necessary for more complex issues.

Highlights

The video demonstrates how to fix a computer that powers on but doesn't display anything on the monitor.

Windows users commonly report issues where the computer powers on but the screen remains black.

A solution is provided to reset BIOS settings to default, which can resolve booting into a black screen.

Instructions are given on how to physically reset BIOS settings by removing the CMOS battery.

After removing the CMOS battery, the power button should be held to release residual electricity.

The CMOS battery should be reinstalled after waiting for a few minutes to ensure the system is fully discharged.

Resetting the BIOS may require re-setting the time and date upon next boot.

RAM is often the cause of no display issues, and cleaning the RAM stick with an eraser is suggested.

After cleaning, the RAM should be reinserted into the motherboard and the computer powered on to test.

If cleaning the RAM doesn't work, trying a different RAM slot is recommended.

If no success with different slots, trying a different RAM module is the next step.

If all else fails, taking the computer to a repair shop is advised.

A CMOS check or bad date/time error can be resolved by updating the BIOS settings.

Pressing F1 during a CMOS error allows access to BIOS utility settings to update the date and time.

After setting the correct date and time in BIOS, F10 is used to save settings and restart the computer.

The video concludes with a demonstration of a successful boot after cleaning the RAM.

Viewers are encouraged to share which method worked for them or suggest better solutions in the comments.

The video ends with a call to action for viewers to like, share, and subscribe to the channel.