Computer Failure Caused by CPU Problems
Computer failure caused by CPU is although varied, but also summed up in nothing less than the frequent crashes, POST displays the operating frequency of repeated changes, and can not boot due to excessive overclocking, and system power-up without any reaction of several way.Of course,we should cope them in different ways.
This computer failure are quite common, mainly due to generally poor work by the cooling system,
CPU and the socket have bad contact, the CPU temperature settings in BIOS errors. We can check if the fan is running normally, check if the heat sink and the CPU contact is good,if coating Thermal Grease is uniform, remove CPU and check if the contact of socket and pin is reliable, enter the BIOS setup to adjust the temperature protection points and etc. .
2.The POST shows the operating frequency is not normal
Specific performance is the boot CPU operating frequency to reduce, on-screen display "Defaults CMOS Setup Loaded" prompt,after reset the CPU parameters in the CMOS , the system return to normal display, but the fault will appear again. For this situation bears on the CMOS battery or the motherboard on the corresponding circuit.The first measure the motherboard battery voltage, if the voltage is lower than 3 volts, you should consider replacing the CMOS battery. If replacing the battery did not take long, fault appeared, it is the motherboard CMOS power supply circuit components exist leakage, then you must take the motherboard to repair.
3.The system does not respond to power-on
Generally in the face of this failure can be "alternative method" to determine the exact location of faults. If eliminate the possibility of the motherboard or power supply leading to the failure, you can determine the CPU problem mostly was internal circuit damage.If so, then it can only be solved by replacing the CPU.
4.Excessively overclocking can cause unable boot
Excessive overclocking, computer boot will appear the failure of cooling fan may rotate normal, and hard disk light only flashed then it would not react, and the display is standby.Since then can not enter the BIOS setup options,therefore,will not be able to reduce the frequency of the CPU. In such situations will be handled in two ways:
1.Open the case and found jumper on the motherboard discharge to CMOS , set it in "CMOS discharge" position or pull out the battery, wait a bit after a few minutes, then reset the jumper or the battery and restart the computer.
2.Most motherboards now have a overclocking failure recovery measures.For example,You can press F2 in the boot and then the system starts to enter the BIOS setup options,you can reduce the frequency of the CPU.
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