Quick answer
No power does not prove that the motherboard has failed. Start with the external power source and correct adapter, then have the internal power path assessed if needed.
Understand the issue
This guide covers computer won t turn on no lights no sound. The useful starting point is to establish what happens, when it happens and whether recent changes are involved. Keep the original symptom separate from a proposed repair: a symptom alone rarely identifies the exact part or setting at fault.
Useful details to discuss
- Check power and connections
- Observe error codes, beeps or indicator lights
- Test one component or peripheral at a time
- Protect important data before invasive troubleshooting
- Use professional diagnosis for board-level or electrical faults
Step-by-step checks
- Check the power source and compatible cable.
- Disconnect accessories and record any brief indicator activity.
- Stop when there is heat, smell or visible damage.
Need help with this issue?
Share your model and symptoms. Confirm availability and the quote before booking.
What the results mean
Do not open a desktop power supply or bypass protection circuits. Internal components can remain hazardous after disconnection.
| Stage | Action |
|---|---|
| Start | Check the power source and compatible cable. |
| Compare | Disconnect accessories and record any brief indicator activity. |
| Next step | Stop when there is heat, smell or visible damage. |
Repair checklist
If you need help, send RJ Computers your device model and the results of the checks above. Explain what must be preserved before work starts, especially files that have no other copy.
- Confirm assessment charges and what the quote includes.
- Ask for approval before additional parts or destructive software changes.
- Test the original symptom at handover and keep the repair details.
Ready for an assessment?
Share your model and symptoms. Confirm availability and the quote before booking.
Frequently asked questions
Does a power light prove the computer is working?
It shows that some power is present. Startup and stable power under load still need to be checked.
What should I record before requesting help?
Record the full model, exact error or symptom, recent changes and what you already tried. Explain whether important files have a separate backup.
How do I arrange a repair assessment?
Call RJ Computers on +91 99715 24677 or use the WhatsApp booking button. Confirm availability, diagnostic fees and the scope of work before booking.
Conclusion
Start with the evidence and compare it with the symptom before choosing a repair. Do not open a desktop power supply or bypass protection circuits. Internal components can remain hazardous after disconnection. If the checks do not explain the problem, share your observations and ask for an assessment before approving work.