CPU radiator fault caused by the bad

Fault phenomenon:

When use, machine frequent a toshiba satellite m100 laptop cpu cooling fan blue Windows warning window, then appear crash fault.

Failure analysis:

Due to the warning content for the messy code, appear before failure and just installed a download them from the Internet application software, the doubt is the software with a virus, then, will be installed software delete and separately using KV300, KILL98 and rising antivirus software such as check, antivirus operation, all did not discover the virus is found. Shutdown and restart, about 4 minutes later, once again appear afore-mentioned phenomenon,toshiba satellite m35 series laptop cpu cooling fan repeated several times this is still true. In order to eliminate the possibility of viruses, format hard disk and reinstall the system. When using Windows

95 the setup disk for installation, the installation is complete, the above phenomenon to appear, make installation cannot normally completes.

Troubleshooting:

Fine a thinking, feeling the fault is not like caused by viruses, because every time the machine to boot, had just begun to work normally, only in a few minutes later to appear the phenomenon of crash, it appears that some of the machine and hardware, especially the CPU chip temperature relevant. Shutdown, open chassis inspection, when touch CPU chip radiator, feel temperature is very high, very hot, which is obviously not normal, doubt is CPU chip or its radiator on the exhaust fan is not normal. In the case cover open cases start machine, right now found, the CPU chip radiator of exhaust fan speed is very slow, has lost the normal cooling function. Shutdown, the exhaust fan to be removed, hand toggle blade, feel blade rotation is not flexible, therefore, with flat screwdriver inserted blade root of the gap in under upward become warped, will the whole blade and fan toshiba satellite m30 series laptop cpu cooling fan base separation, over blade, see in the blade of the central part has a use several small arc magnet surrounded the round cover form, obviously, this is the fan motor rotor and stator is and fan base fixed together a miniature winding, if the fan blade and fan base together, the miniature winding just inserted in the internal rotor. Further observation found that the top of the shaft in the stator and rotor conterminous bearing parts stick some dry black sludge, respectively with gauze the erasing clean, again on the point into several drop senior watch lubricating oil, and then will fan and fan base realignment together, at this time, it gently moving blade, blade can easily turn. To restore the exhaust fan installed on the CPU radiator, and electrical test, can see the blade rotation fast, power on 10 minutes, touch the CPU chip, feel the temperature only lukewarm state that fan cooling function has been fully recovered. Cover good host chassis, restarting and reinstall Windows

95 system, everything is normal, long time continuous work, the fault also does not appear again.

Fault description:

The fault system CPU radiator of exhaust fan lubrication is bad, make blade rotational resistance increases, lead to blade speed is low and lose heat dissipation function, so as to make CPU toshiba satellite m105 laptop cpu cooling fan on a few minutes later because of high temperature and into the self protection condition, appear the phenomenon of crash.




http://www.equestrianblogging.com/blogs/battery-home/laptop-cpu-fan/2012/09/17/Apple-response-message-function-loophole-events-suggest-using-iMessage

http://wholesaleshops32.bloggd.org/2012/10/11/windows-in-improving-the-memory-usage-efficiency-of-the-several-good-method/