Intel DG43GT Product Guide - Page 57

Replacing the Battery, Location of the Clear CMOS Memory Jumper Block

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Installing and Replacing Desktop Board Components Figure 27. Location of the Clear CMOS Memory Jumper Block Table 16. Clear CMOS Jumper Settings Jumper None Installed Mode Normal (default) Clear Description The BIOS uses the current contents of the CMOS memory. The CMOS memory is erased. Replacing the Battery A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer is not plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the standby current from the power supply extends the life of the battery. The clock is accurate to ± 13 minutes/year at 25 ºC with 3.3 VSB applied. When the voltage drops below a certain level, the BIOS Setup program settings stored in CMOS RAM (for example, the date and time) might not be accurate. Replace the battery with an equivalent one. Figure 28 on page 62 shows the location of the battery. 57

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Installing and Replacing Desktop Board Components
57
Figure 27.
Location of the Clear CMOS Memory Jumper Block
Table 16. Clear CMOS Jumper Settings
Jumper
Mode
Description
None
Normal (default)
The BIOS uses the current contents of the
CMOS memory.
Installed
Clear
The CMOS memory is erased.
Replacing the Battery
A coin-cell battery (CR2032) powers the real-time clock and CMOS memory.
When
the computer is not plugged into a wall socket, the battery has an estimated life of
three years.
When the computer is plugged in, the standby current from the power
supply extends the life of the battery.
The clock is accurate to
±
13 minutes/year at
25 ºC with 3.3 VSB applied.
When the voltage drops below a certain level, the BIOS Setup program settings stored
in CMOS RAM (for example, the date and time) might not be accurate.
Replace the
battery with an equivalent one.
Figure 28 on page 62 shows the location of the
battery.