Question about Dell Dimension 9200 PC Desktop

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I'm having serious issues with my Dell Dimension 9200 desktop. I left my computer on overnight and during the night I had a 5 minute power failure. Now when I try to turn the computer on, it does not boot up at all. It does turn on, and on the turn the number 1 and 2 stay on the entire time.. But the computer does not load anything! What happened? Is there anything I could do?

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Though itz not known to me if u r using an ups or invertor or cvt..
is any light blinks up..??..esp. on the monitor or set dead..

DO IT ONLY IF U R A PROFESSIONAL..
however..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....

Posted on Nov 16, 2009

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