As soon as i power on the PSU the pc starts itself without even pressing the power button then shuts down So the fans and everything thing powers on for 1 second then powers off repeatedly till i power off the psu I switched rams cleaned the whole pc removed the batteries nothing works Even when i disconnect everything only the MB is attached to the psu (no ram) it does the same loop Any thoughts?
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1Put the memory back in and start in BIOS. Does it start that way? – John Jan 25 '22 at 18:57
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I cant enter to bios It doesnt even turn on for 1 second – Amr Miramar Jan 25 '22 at 19:01
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Take it to a local repair shop and see if it can be economically repaired. It may be time for a new computer. – John Jan 25 '22 at 19:03
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So theres nothing i can do ? Itsnt my main pc but im remote rn and theres none around – Amr Miramar Jan 25 '22 at 19:06
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1Does this answer your question? [Any way to tell apart a CPU defect from a mainboard defect?](https://superuser.com/questions/228946/any-way-to-tell-apart-a-cpu-defect-from-a-mainboard-defect) – harrymc Jan 25 '22 at 20:07
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Enter the service tag on dell.com website . – Petepf Apr 13 '23 at 02:24
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As soon as i power on the PSU the pc starts itself without even pressing the power button then shuts down
Comment: Starting in BIOS did not start.
So at this point, the issue most likely is CPU and/or Motherboard.
Either way, and assuming the computer is past warranty period, the most likely path forward is to replace it. Putting a CPU and/or motherboard in an older PC is generally not economical.
John
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I had the same problem. Solution for me was to purchase a new power supply from seller on Amazon for $25.00 dollars. Original Dell factory OEM power supply. Problem solved. That may be the solution for you.
Viken
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