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Computer, General System
Over heating Problems

Explanation: The system is exhibiting behavior that suggests that there may be an over heating problem with a component, or with the system as a whole. Usually the symptoms that suggest this are heat that is noticeably felt inside the case or on a component, or erratic behavior such as system lockups.

Diagnosis: Over heating is one of the main enemies of a reliable system. A PC that runs hot will have a shorter life span for its components, and at extremes of temperature, the possibility exists that the system will be unstable. It is even possible (though rare) for the over heating components to be damaged. The importance of system cooling is discussed in more detail here. One problem with diagnosing over heating problems is that symptoms can be related. For example, a processor over heating can lead to other components over heating; similarly, ventilation problems within the system case can exacerbate a problem cooling a processor that runs hot.

Cleaning the dust and dirt from your computer cooling system.

Recommendation: Turn on the PC and run it for about an hour with the case on, in the way you normally would use it on a daily basis. Then perform the following checks:

Warning: Be very careful when checking components for their heat level. You want to make sure you do not burn yourself, and you want to make sure you do not zap the component with static electricity. Before you test any component for its heat level, ground yourself on the case of the power supply box, and only touch the component at first for a fraction of a second until you can verify if it is really hot or not.

Check the fan on the power supply to make sure it is running. This is the primary cooling mechanism for the PC case and if it is not working, the chances are good that something within the PC may be running too hot. If the fan has stopped, or if the volume of air it is moving seems low, troubleshoot it here.

Carefully touch the system processor, or the heat sink near where it attaches to the processor. If it feels so hot that you must withdraw your finger immediately, you likely have a processor cooling problem.

Check the following components on the mother board to see if they are running very hot: cache chips (or cache/COASt module), voltage regulator heat sink, BIOS chip. If any of these are running very hot and you are having problems with your mother board, it may be bad. The voltage regulator can get very hot when some chips are used, and you may need to add extra cooling to keep it at operating temperature. The other components on the mother board should not get very hot. If you are using a Cyrix 6x86 chip, make sure the mother board is approved to use it or problems with over heating of the voltage regulator may result.

Check the system memory to make sure it is not over heating. It should be warm but not too hot to the touch. Overheated memory is a symptom of either bad memory or problems with the mother board.

Check the hard disks' temperature as well. If they are running very hot then you may need to take corrective action.

If you are having repeated or continual heating problems within the case, you may want to consider moving your system into a larger case.

Easiest route to review components without opening a case or touching parts to determine heat levels. Buy a mother board, SuperMicro, that provides an diagnosis software to monitor the temperature at the CPU and internal case, plus monitors the voltage and fan health. Preferred mother board would provide an alarm if any system information breached preset values.


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