Do you remember if there was any hardware change or software change?
Try the following steps:
- Clear the CMOS by disconnecting all components from the motherboard. Once you do this, disconnect the battery and the BIOS jumper for 3-5 minutes.
- Reconnect all components and test the system with minimum configuration
- If possible test the system outside of the chassis to avoid grounding issues.
- IF possible test different memory
- Test different cables. Sometimes cables are broken internally and may cause this type of problems.
Here you have some other troubleshooting steps to try:
Thanks for your help. I performed a CMOS reset, but it did not help. The screen is still black. I also tested the cables, they work fine with a different system. Any other clues?
By the way, there was no hardware or software change before the failure occurred.
If you have done all troubleshooting steps mentioned above, you should contact Asus to get the motherboard replaced or our Contact Center to help you checking the processor: