Member Avatar for rk_123_rk

my comp stat

2.8 ghz intel processor
512 + 256 ddr ram
tried 350 watt and 450 watt power supply

a few days back smoke was comin out from my power supply

i changed my power supply 2 times 350 and 450 watt

my comp has the problem that its shuts off suddenly

i even tried another motherboard

i think prob is with processor

processor fan and cpu fan workin properly

so this time i want to be sure about the problem

i hav already spent lot of money

so should i buy a new processor ?

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  • Latest Post Latest Post by ENCOSE

Dani AI

Generated

A short diagnostic roadmap based on the thread: sudden, intermittent power-offs are far more often caused by power delivery, shorting, or cooling/contact issues than by a CPU going bad. reported a prior PSU smoking event and correctly reminded that a spinning fan does not guarantee proper cooling — the heatsink, thermal paste, or mounting can still be at fault. Power-supply and capacitor failures are common culprits (Power supply unit (computer); Capacitor plague), and poor thermal contact will let a processor overheat even with the fan running (Heat sink).

Practical next steps to isolate the fault (do these in order, and stop if you smell burning):

  1. Visually inspect the motherboard and PSU for scorch marks or bulging/leaking capacitors.
  2. Test outside the case with a minimal configuration (one stick RAM, CPU and cooler, no drives or add-in cards) to rule out case shorts.
  3. Verify PSU rails with a multimeter or a dedicated PSU tester; an unstable 12V/5V rail will cause sudden shutdowns.
  4. Reseat the cooler, clean old thermal paste, and apply fresh paste correctly; confirm fan headers report RPM in BIOS.
  5. If available, try a known-good PSU or have a shop test your CPU in another compatible board before buying a replacement CPU.

Caution: do not open a PSU unless you know what you are doing — capacitors hold lethal charge. If uncertainty remains after these checks, a professional diagnostic or component swap test will avoid unnecessary CPU purchases.

Member Avatar for ENCOSE

Are you sure the CPU is not over heating?

If the CPU fan is not seated properly, it could cause the system to overheat and shutdown.

Member Avatar for rk_123_rk

well yes that couldnt be the case
as except processor, i hav changed everything

so any ways to repair my processor ?
to protect it from overheating ?

Member Avatar for ENCOSE

what processor are you using?

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