Member Avatar for boysie

My computer has allways had this problem, it will turn on fine and run with no probelms, then i shutdown the computer, and then it will not turn back on untill it cools down! I have updated my BIOS but that didnt help, it will restart ok aswell, just once its shutdown it has to take hours for it to cool down and turn back on.
Oh and on hot days it will not turn on at all.
Any suggestions?
Thanks,
jon

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The pattern describes — runs fine, restart works, but a cold power-on only succeeds after hours of cooling — usually means a temperature-dependent hardware fault rather than an OS or driver issue. and are right to think about heat, but here are targeted, safe diagnostics that go beyond adding fans.

  • Do a careful visual check (with power unplugged) for swollen, leaking, or crusty electrolytic capacitors on the motherboard and inside the PSU. Heat-sensitive caps can stop the system from powering on until they cool; this is a well-documented failure mode. See capacitor failures.
  • Verify ATX standby behavior: measure the 5VSB line on the 24-pin connector with a multimeter while the system is plugged in (but "off"). If 5VSB is missing or unstable the board will not accept a cold power-on. The ATX spec documents these rails and signals. See ATX.
  • Try a minimal-boot: unplug drives and add-on cards, leave CPU and one RAM stick. A successful cold boot in minimal config isolates the fault to removed parts.
  • Check the front-panel wiring: temporarily short the two power-switch pins on the motherboard to rule out a faulty case switch/cable (do this carefully).
  • If PSU/rails and caps look OK, consider temperature-sensitive solder joints or failing voltage regulators; those usually need professional repair or board replacement.

Do not open the PSU unless qualified; dangerous voltages remain. If any inspection shows damaged caps or burning, replacing the PSU or motherboard is the safe next step.

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Member Avatar for hittingrabbit

yes suggestion #1 install a bigger heatsink and fan,install additional fans,install fans everywhere you can in your computer.
Relocate the computer to a cool dry place,that has plenty of airflow.
do not block the power supply airflow,clean out the fan areas(after unplugging the computer).
Install a water cool system.
#1 answer move to Antartica(no joke the colder it is the better for your processor.
also your power supply may be bad over heating and causing your computer from booting up,also your processor may be way too hot it should function safely at about a max of 115 F,

Member Avatar for JemB

bbigger heatsink+fan, and a case fan or two. replace the thermal paste on the proscessor as well, and double check the thermal cuttout settings in the bios too.

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