CHAINTECH 7NJL3, User Manual

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Chapter 2
Poly-fuse Over Current Protection
The poly-fuse protects the system from dangerous voltages that the system
might be exposed to via the keyboard or USB connector. In case of such
exposure, the poly-fuse will immediately be disconnected from the circuit, just
like a normal fuse. After being disconnected for a certain period of time, the
poly-fuse will return to its normal state. Then the keyboard or USB connector
can function properly again. Unlike conventional fuses, the poly-fuse does not
have to be replaced, relieving the user wasted time and inconvenience.
CN1A (Front Panel Connector) A through F
A. PWR-SW (Over-ride Power Button Connector)
The power button on the ATX chassis can be used as a normal power switch
as well as a device to activate Advanced Power Management Suspend mode.
This mode is used for saving electricity when the computer is not in use for
long periods of time. The Soft-OFF by PWR-BTN function in BIOS's Power
Management Setup menu must be set to [
Delay 4 Sec .] to activate this
function.
When the Soft-OFF by PWR-BTN function is enabled, pushing the power
button rapidly will switch the system to Suspend mode. Any occurrence of
external activities such as pressing a key on the keyboard or moving the mouse
will bring the system back to Full-On. Pushing the button while in Full-On
mode for more than [
4 seconds ] will switch the system completely off. See
Over-ride Power Button Operation diagram.
B. P-LED (Power LED Connector)
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The power indicator LED shows the system's power status. It is important to