Hello! I'm sorry to hear about the display issue you're experiencing with your computer. It's good that you've already tried some troubleshooting steps. Here are some additional things you can try:
1. Check the monitor and cables: Make sure the monitor is turned on and properly connected to the computer. Try using a different monitor or cable to rule out any issues with the display.
2. Check the power supply: Ensure that the power supply unit is working correctly. You can try connecting the computer to a different power outlet or using a different power cable.
3. Inspect the graphics card: If your computer has a dedicated graphics card, try reseating it in the PCI slot. If possible, test the computer with a different graphics card to see if the issue is related to the GPU.
4. Reset BIOS settings: You can try resetting the BIOS to default settings. This can usually be done by removing the CMOS battery for a few minutes or using the clear CMOS jumper on the motherboard.
5. Test with minimal hardware: Disconnect all unnecessary peripherals and components from the computer, such as extra drives or expansion cards. Try booting with just the essential components (CPU, RAM, GPU).
6. Check for beep codes: If your motherboard has a speaker, listen for any beep codes during startup. Different beep patterns can indicate specific hardware issues.
7. Seek professional help: If you've tried all these steps and still can't get the display to work, it may be time to consult a professional technician who can diagnose and repair the issue.
I hope these suggestions help you troubleshoot the no display problem with your computer. Let me know if you have any questions or need further assistance!
PH