The option description:
By means of the given information option you can learn pressure of the battery feeding a non-volatile memory (a CMOS-memory chip) and the real time timer. Rated value — 3 Century
This battery provides a course of hours and allows to save adjustments BIOS, the information on a hardware configuration even then when the computer is physically disconnected from an electrical network. If pressure of a battery falls below trigger level (normally it happens in 3—5 years of maintenance), it is necessary to replace it on new, differently after each shut-down of the computer adjustments BIOS will disappear and to glork system time.
At some implementations BIOS there is a color selection of the deduced information. If pressure within norm, you see dark blue digits if it quitted for admissible limits, color of digits will be replaced with the red. It is quite often possible to refuse control of the given pressure generally. For this purpose it is enough to select for an option value [Disabled] or [Ignore] (truth, the special sense in it is not present).
Be not surprised to constant "races" of displayed value — accuracy of circuits of measurement of the motherboard far from an ideal affects. To be convinced of it it is possible, connecting any normal measuring instrument (the voltmeter or an oscillograph).
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