I AM GOING THROUGH A REALLY WEIRED PROBLEM . EVERYTHING IS WORKING FINE , IT'S JUST THAT WHENEVER I TURN OFF MY PC IT DOESN'T START IMMEDIATELY AFTERWARDS .I MEAN I NEED TO WAIT FOR ABOUT 15-20 MINUTES TO SUCCESSFULLY START THE THING AGAIN . IT SOMETHING LIKE I HAVE TO WAIT FOR IT TO COOL DOWN TO NORMAL ROOM TEMPERATURE . I TOOK NOTE OF THE TWMPERATURE IN THE BIOS AND IT WAS NEVER MORE THAN 38 DEGREES ,AND MOBO TEMP AROUND 24 DEG. I HAVE DONE EVERYTHING I COULD .
I RESEATED EVERY COMPONENTS I COULD FIND ON THE MOBO .
I REPLACED THE BATTERY .
APPLIED THERMAL COMPOUND .
FORMATTED THE CMOS.
CLEANED ALL THE COMPONENTS.
THE PC IS 6 YEARS OLD P4 PROCESSOR .AND I FEAR THERE COULD BE SOME HARDWARE ISSUES .
AND YES WHEN I POWER IT UP IMMEDIATELY AFTER SHUTDOWN EVERYTHING WORKS FINE : FAN ,HDD AND CDD MAKE THEIR USUAL SOUND ACCEPT FOR THERES NO BOOT , EVEN THE MOTHERBOARD SCREEN DOENT SHOW UP + NO BEEP.
I DID NOT DO ANY OVER-CLOCKING OR ANY OTHER SETTING IN THE BIOS. PLZ GUIDE ME.
PS :SORRY 4 MY BAD ENGLISH.
Sounds like a bad PSU or motherboard. If the power supply is spinning, then the next possible thing is the motherboard. They are only rated to last so many "hours" typically or so many years. Recommend as a future purchase of a ASUS board, Look to some reviews for the best choice. Top end boards in my opinion.
So much in fact they guarantee so many hours of operation at 60 degrees C. (which is quite hot), so imagine how long it should last at regular temps.
Almost never the CPU will be the issue. unless it overheated at one point causing damage It is possible the ram could be bad... You could try booting with one ram stick, and then rotate them to see if one stick is causing the issue. ie: a slot went bad possibly.
Also... Remove all component power sources and cabling from devices such as Hard drives, and dvd rom devices... If it boots up fine several times normally, it very well could be the PSU going. Had that happen once when i removed a second HDD, and the thing wouldn't boot normally until everything was disconnected with exception to the post items needed. RAM, CPU, Video Card, PSU, etc.
I gave my mom a old P4 system from work that was sitting around collecting dust, the thing sounded weird, and had some post boot issues as well. I suspected it was a motherboard problem, which is too bad. It happens... Time kills everything