CMOS use and maintenance information _ hardware Maintenance

This phenomenon is especially frequent in computers with a long computer age. The main reason is that the back-up battery on the motherboard is too long to use, the voltage is low, need to be replaced. However, if the CMOS power outage phenomenon often occurs in the new battery-changed machine, it is necessary to consider the motherboard on the circuit is not a problem. Generally in use, we should pay attention to the following points:

1. When replacing the motherboard battery, it is necessary to select a battery that is of good quality and recently produced (e.g. Maxell CR2032). Otherwise, it often occurs because of the poor quality of the batteries or because of the long-term storage of batteries caused by their own discharge too much and caused a few months after the battery and no electricity. If the battery quality is better, but the use of time is not long, there is a CMOS power failure, it may be the host board of the circuit has problems, need to timely overhaul the motherboard.

2. When replacing the battery, pay attention to check the original battery whether there is leakage, if there is leakage must be the main board of the leaking liquid thoroughly wiped clean, to reduce leakage of the circuit corrosion caused by the damage. If the newly purchased machine, in addition to considering the battery problem, should also consider the motherboard problems and with some card matching problems and other factors, preferably in time with the sale of the computer company contact.

3. If you want to deal with the problem of the circuit, you can check the motherboard on the battery circuit resistance or diode is damaged, whether the capacitor leakage, the battery's jumper settings have no problems. If you determine the quality of the IC on the motherboard is problematic, you can also use the external battery method to solve this problem.

The method is to use a 6V laminated battery or a battery cartridge mounted on the 2~4 section 5th battery to the external battery connector on the motherboard. Please note that on the motherboard instructions on the positive, negative side of the mark, you must not answer the wrong. For safety reasons, a 50ω resistor can be strung in the battery circuit (positive end). The battery connectors can be bought at a computer company or electronic accessories store. Because these batteries have strong power, usually can be used for a long time, but should be used without leaking liquid green battery, and the battery box into the machine safe position fixed, to avoid leakage of batteries and damage to the mechanical parts.

Because CMOS error is a headache, and quite a lot of machines are because they do not pay attention to it and cause machine failure, so the author finally reminded us to regularly maintain the CMOS is very necessary