Having problems with your HP KQ499AA Pavilion Elite M9360F Desktop PC ?

Computer frequently shuts down unexpectedly/ fans very noisy

\015 A month after i bought the hp pavilion elite m9360f, my computer made loud whirring/grinding noises with the fan. This kept going on until a year and a half later. This week, my computer has been shutting off randomly without warning. Sometimes, the fan starts spinning so loud i thinks its going to fly off, then it shuts down. I never get any error messages afterwards. When it does shut down, i have to wait about an hour or two before i can turn it on again because it wont turn on again with the power button. I think it might be a problem with the power supply? I really need to fix this problem, and any input would be great!\015

Answers :

You might have a cooling problem due to a fan malfunction. It is not clear whether it's the power supply fan or the CPU fan; in the latter case you might also have a thermal coupling problem. The symptoms you describe certainly seem to point to such.

My advice would be to replace the fan (or the whole power supply; you might also want to purchase a "Silent Power" unit for quieter computing). If it's the CPU fan and you are comfortable with, or know anyone comfortable with a bit of PC servicing, you might want to also unmount the heat sink from the CPU and replace the thermal paste between CPU and heatsink. Clean the heat dissipator (the black metal grille over the heatsink) with hot water and a bit of soap and dry thoroughly, or wipe it energically with a dust brush, before mounting the new fan on it.
You are right you need to replace the power supply, It if fairly easy to do.

\015\012
    \015\012
  1. Unplug the computer, press and hold down the power button.
  2. \015\012
  3. open the cover and unscrew the power
  4. \015\012
  5. disconnect all the cables and take the power supply with you when you get a new one.
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