Updating cmos

Note: This is applicable to both Desktop and some Portable systems.Portable systems however will require a door on the bottom or perhaps keyboard removal to access the coin cell battery.Once the jumpers are correctly set and power is supplied this will then reset the BIOS on the system. The NVRAM will be cleared when the jumper is closed (use the jumper from the password bridge (PSWD)).

It is the first software your PC loads so that it can use things like CD drives, mice, and keyboards practically from the moment you turn it on.It is the first program that runs every time you turn on your computer.The BIOS performs the POST, which initializes and tests your computer's hardware.Presently the computer doesn't POST unless I clear the CMOS RTC RAM data each time (by removing the battery and jumping the pins).In addition, when I do start the computer via this method, there is a high pitched noise which doesn't come from the HDD or PSU.

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