IWILL P4E Series, User Manual

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2: Key Features & Components
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User’s Manual 2•19
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Front Panel feature connector
pin assignments
Front Panel Connector:
Leads from the front panel
features connect to this
header.
System LED
Power On
Speaker
IDE LED ACPI Reset
Front Panel Connector J21
Function: Multifunction pin header connector for sys-
tem housing front panel features.
Description: This connector supports the following front
panel features:
• Reset Switch (Reset below)
• IDE device activity LED (IDE LED in diagram)
• System ACPI Suspend LED (ACPI in diagram)
• System Power Switch (Power On in diagram)
• System Activity LED (System LED in diagram)
• Housing-mounted speaker (Speaker in diagram)
More Information: See Chapter 4 “Installing the Board
In A System Housing” and Chapter 6, “System Features”.
Battery Housing
Function: Housing for system support battery.
Description: An external lithium coin-cell battery pow-
ers 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.
More Information: See the Standard CMOS Features sec-
tion of “Configuring the CMOS Setup Utility” in Chapter
5 to adjust the real-time clock settings.
System support battery
Battery & Housing:
The battery is a CR2032
Lithium coin cell.
J21