How to Fix Laptop Turns on But No Display 2025

Issue Description:

When pressing the power button on the laptop, the Laptop Turns on But No display anything and shuts down after approximately 5 seconds. Upon pressing the power button a second time, the laptop powers on, and the display appears, but it shuts down again after about 10 seconds. On the third attempt, the laptop turns on properly, the display functions correctly, and the system remains stable without shutting down.

Troubleshooting Steps Taken Laptop Turns on But No display :

1. Component Isolation:
   • Removed and tested the system without RAM, HDD, DVD drive, Wi-Fi card, and other peripherals.
   • The issue persisted despite removing all these components.
2. Voltage Check:
   • Verified that all necessary voltages were stable and within the expected ranges.
   • No abnormal power fluctuations were detected.
3. Heating Component Check:
   • Checked for any overheating ICs or board components.
   • Discovered that the CMOS cell was heating up excessively.
   • Replaced the CMOS cell with a new one.

Resolution: After replacing the CMOS cell, the Laptop Turns on But No Display started functioning correctly. It powered on successfully in a single attempt without further shutdowns or display issues.

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Additional Troubleshooting Recommendations for Similar Issues:

• Force Restart: If the Laptop Turns on But No Display shows a black screen, try holding down the power button for about 10 seconds to force a shutdown. Then, turn the PC on again. Performing this action three consecutive times can trigger Windows Startup Repair to run automatically.
• Memory Module Check: Some notebooks have two memory slots and two memory modules. A black screen error or startup failure may result from:
  • A faulty memory module.
  • A defective memory slot.
  • Improperly seated memory modules.
  Depending on the laptop model, the memory compartment may be located at the bottom of the case or beneath the keyboard. Refer to the User Guide or Maintenance and Service Guide for exact placement.
• Driver Issues:
  • Corrupt or incorrect graphics drivers can cause a black screen or display issues.
  • If the screen remains black, updating drivers may be challenging, but attempting to boot into Safe Mode and reinstalling display drivers can help resolve such issues.

By following systematic troubleshooting Laptop Turns on But No Display and checking each component, this issue was resolved efficiently, and the laptop resumed normal operation.

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