DO IT ONLY IF U R A PROFESSIONAL..
..plz do check the following as in order:..
the Hardware part:..
1) check mains/power supply..the fuse, switch, wiring n associated circuitry..
2) [in case of desktop] the
smps itself may b defective/faulty..check the outputs of smps viz. 0v
(black~ground); +12v(yellow); +5v (red, green~ps-on, violet~pg&
grey~sb); -12v (blue);-5v(white); +3.3v(orange)..
check the battery n adapter [main power], in case of laptops..
replace with a standby n see..
3) unplug mains supply..pick open/remove the cmos battery..check (above +3v)..resit..
4) open the cpu n see if heat is generated..if not..replace the cpu n see..
5) open the CPU Heat-Sink with fan out of the
socket..put some "Heat Sink Compound" (available in local electronics
chip level spare market)between the cpu/processor and the CPU Heat Sink
*** fan..resit/fit it tightly in position..
6) on main/mother
board..see with a debug card for mb error..may b short..look for
defective capacitors(espabove1000mfd)/mosfets..go through the mb's
south bridge n the circuit lie around atx connector..the crystal clock
generator (if cpu isn't heating up)..
replace with a standby n see..
7)see
if the ram(s) is loose/faulty..open clean/remove carbon & or oxide
formed on the teeth with an eraser n resit it..or replace with a standby
n see..
8)remove/clean dust
neatly..dust is non-uniform in nature n may cause
jam/short circuitry/excess resistance n many more..resulting an increase
in heat..
plz give priority to steps(2, 4 & 6)..
if u r not a professional, always better to seek advise from ur system admin/vendor....
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