Cmos battery is one important part of the computer. Often we forget the meaning of a Cmos battery even many of us do not know at all Cmos battery function. 'The lack of love for' us against the Cmos battery, often forget we are on some of the problems that occur due Cmos battery. And we're preoccupied with looking for another cause when the cause is 'trivial', ie Cmos batteries last!
Is it Cmos battery?
Cmos battery is a battery with a voltage of 12 volts and about 1.5 cm in diameter (in general, to battery PC) on the laptop, the diameter and shape can vary. Cmos battery is used to store settings on Cmos (an IC program on a computer) or commonly called Bios. That is why the date and time on your computer is still running even if the computer is turned off, yes .. because the Cmos battery. Cmos battery is a battery recharger that will be in 'charge' back while the computer is on.
By the time you turn on the computer the first time, will appear a screen which gives a few seconds for you to enable setting up your computer BIOS. Display only lasted less than about 5 seconds before the computer loads the Windows or other operating systems. It is common for ordinary people to enter the BIOS is not really necessary, because the BIOS settings by default is enough to be used. You can enter the BIOS by hitting DEL or F2 key, the public key used to enter the BIOS.
BIOS screenshot
The cause of fast CMOS battery is used up?
Cmos battery can usually last very long (approximately 5 years) provided that your computer is often used so the battery can still hold on 'charge' repeated by the computer. Usually a computer that does not use long or 'idle' for months resulting in Cmos battery will run out power absorbed to the needs of Cmos / Bios.
The second damage is usually caused by poor quality of the battery. And unfortunately the battery on the market Cmos battery Cmos indeed with the quality of 'sober' the price varies between USD. 3000 to Rp. 5000. Even for the purchase of the party, Cmos battery price no more than Rp. 700 per battery.
Damage caused by the CMOS battery
Therefore BIOS functions are quite important in your computer, as well as the role of the CMOS battery that supplies power to the BIOS to work is very important. Although the CMOS battery has run out, the BIOS would still work with the old settings without being able to be changed.
1. If the BIOS can no longer perform their duties as normal, the possibility that there are changes on your computer, especially for introducing new hardware-hardware can not be done. For example you would install a new component of your computer (VGA example), then the mainboard is not able to recognize these components and is considered absent.
2. The second example, when you make changes to BIOS settings, such as changes in the Bootable Device, then after you restart the computer settings will return to its original setting. Usually the display will appear on the screen that erorr BIOS settings, and you can not directly booting Windows, usually pressing the F1 or F2 to resume booting.
3. The computer does not save the date, month and year. And of course, setting that we make in Cmos or Bios is changed to 'default', consequently the computer will always ask to re setup with commands like Press Del to Setup, or Press F1 to Continue or other commands such. Very annoying is not it?
4. If the battery does not keep track of the month and year, then at some sites, especially up there will arise a security warning and the site you enter is considered dangerous (untrust site)! Annoying too is not it?
5. A lot happened, though not often, Cmos batteries cause the computer can not live! Or could live a while ago nge 'hang' and then not be revived, then it would take several hours to be able to live and then die back. Even on a laptop, battery Cmos often leaked. And the leak was dripping on the mainboard which resulted in a short-circuit on board laptop.
6. Conversely, setting errors that occur in the Bios or Cmos any resulting computer is not stored by the battery life, so the computer still can not live.
7. Untrusted Connection; One result of ineffectiveness of the date, month and year because of damage Cmos battery:
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