Having problems with your Intel (P42000400512SK478) Pentium 4, 2 GHz Processor ?

My pc always hang...

\015 When i start my pc it run normally but when i restart then it will hang.\015\012it started when i opened the fan of the processor and i clean the processor by brushing using cloth which accidentally removing the black powder or something on the back of the processor ! did i damage the processor by doing that? what shall i do please help me? I think the powder or something i removed was the coolant of the processor, am i correct?\015\012thanks.\015\012cornelio of philippines\015

Answers :

If removing the black powder was damaging to the processor then your system wouldn't start at all.

If I am interpreting this correctly, your PC is only hanging when you restart. It sounds like what you did was pull the heatsink and fan off of the processor and you wiped away that black powder/smudge junk that OEM vendors such as HP use as thermal material between the heat sink and processor.

Some systems do that. It's to be expected. It COULD be caused by a temperature sensor detecting higher temps, though. (Although that's not likely if it's still starting when you shut it down completely and then start it back up.)


The first thing you want to do is re-seat the CPU in it's socket. I don't know what kind of CPU you have so I don't know what kind of socket it is. Be careful in doing so and if you don't know how to open and close the socket then do a little research online for some instructions; or come back here and tell me what kind of CPU you have.

After re-seating the CPU correctly, you want to be sure to clean the die of the CPU with some kind of solvent (such as alcohol) to get rid of any grease or random chemical build-ups. If there is still sticky residue on the CPU from the thermal material, you can normally get rid of that using a bit of WD-40 on a cloth. (DO NOT APPLY ANY CHEMICALS DIRECTLY TO THE DIE OF THE CPU. PUT IT ON A CLOTH FIRST.) If you use WD-40 to clean the CPU die, use alcohol to clean up the WD-40 afterwards.

Do the same to the bottom of the heatsink. Apply WD-40 directly to the bottom of the heatsink if you like. It tends to eat away all of the sticky junk well enough that you can just scrap it off. Clean the surface with alcohol afterwards.

Get yourself some thermal paste from either Radio Shack or an online store. (Radio Shack is currently selling Arctic Silver thermal paste. Good stuff.) Apply just a SMALL DAB of it to the die of the processor and spread it around until you have a nice, thin and even layer of it. (You don't need a ton of it on there.)

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OPTIONAL STEP FOR BETTER RESULTS:
If the heatsink is rough on the bottom of it, you can buy sandpaper and sand the bottom of it flat and smooth on top of a flat, glass panel. Make sure to give it a good, smooth finish with a fine sandpaper. This will give it a good, flat surface to make contact with the CPU and will help thermal transfer a great deal. Clean the heatsink and apply it to the top of the CPU carefully.
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MAKE SURE THAT THE HEATSINK IS NOT FACING THE WRONG DIRECTION WHEN YOU PLACE THE HEATSINK ON THE CPU AGAIN. If you do, it may actually sit on the socket that the CPU is in rather than on top of the CPU itself. If you turn it on like that, you may burn the processor.

Lock the heatsink down onto the processor as normal.

That junk that OEM vendors put on CPU's should be banned. It's better than nothing...but not by much. They tend to use junk heatsinks and even worse thermal transfer material.

I doubt you damaged your CPU by taking off a little bit of the thermal material like that. However I'm not saying that it's not possible, either. It most likely just got a little bit hot afterwards if anything.

At the very least, clean the surface of the heatsink and the CPU and put some thermal paste there between them. Things should run fine after that. But if your system continues to hang on a restart, then I wouldn't panic. Mine does that sometimes. No big deal. I just shut it down instead of restarting it and turn it back on.

Either way... If you follow these instructions and have a better cooling situation, you're going to experience a bit more stability and possibly better performance with your system.

Let me know how it goes.

Cyryl
It seem many thing you must see.Maybe your pc have a virus.You can use Spyware Doctor or other software.For best solutions, you must open use safemode cause many virus inactive when you open in safemode.The other way, maybe your cpu too hot, you can follow what cyrylthewolf suggest.Hope you can try.
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