Summary of power supply fault judgment and treatment

Power supply is a computer's "power Core", is also prone to failure of one of the components, the failure of the manifestation of a variety of forms. For example, after power-on memory parity error is often related to power, but users are generally easily mistaken for computer memory failure, can not connect with the power. In fact, once the power supply does not provide the normal operating voltage, the memory will be muddy caused by parity errors. Of course, if there is a problem with the power supply can cause hard disk read and write errors. In general. Any intermittent panic or instability in the computer may be related to whether the power supply is normal or not.

(1) The user encountered bad power caused by the hard disk fake bad road problem, general can be repaired by software AI first to check the power supply. While repairing the hard drive, you should also replace a good power supply.

(2) The power supply noise increases, not only the power supply wood fan noise will increase, but also may cause sound card noise increase.

(3) If you have a new computer or a new CD-ROM reading capacity is not good, it is likely that there is a problem with the power supply, if the CD-ROM is not enough power, will directly affect the CD-ROM ability to read the disk.

(4) The stability of overclocking and power quality is good or bad relationship.

(5) There is water ripple on the display, it is possible that the electromagnetic radiation of the power supply leaks, causing a strong interference.

(6) The host often inexplicably restart, there may be power supply is not enough and other reasons.

(7) The bad power supply on the +5 V SB can not provide 10mA of current, resulting in sleep can not wake up after the state.

(8) +5 V SB is unstable, can cause the mouse often malfunction.

(9) Randomness does not boot up with the power supply is very large. We know that the motherboard must be received from the power supply to be able to boot properly. Generally speaking, for a stable power supply, the signal has the appropriate delay time. The performance of the power supply will not be provided, directly from the 5V signal power supply, this will lead to the motherboard CMOS memory failure. When the power is added, it will not be able to boot normally or produce intermittent reset action.

When the above fault occurs, the most simple, intuitive diagnosis and solution is to use the "replacement method", and find a similar size, the type of power supply rod for the next. If you have the conditions, you can also use the multimeter, switching power supply load meter and other instruments on the power supply of each output voltage to be tested, to see whether within the normal range.