15
PWR-LED
is a 3-pin connector. It allows you to connect a three pin LED fron the
case. Notice the polarity, LED will only light up if the polarity is correct.
SPEAKER
is a 4-pin keyed Berg strip. This speaker connector is for the internal
case speaker. This speaker will enable the BIOS to give spoken messages in case
of boot up trouble. The BIOS been codes also use this speaker. For Games and
Music this speaker will not be used, but rather the back panel line-out connector.
RESET connector
is a 2 -pin keyed Berg strip, connected to the push button reset
switch on the case front panel. Shorting both pin 1 & pin 2 can reset the system,
which is similar to the power off and then on again.
HD-LED
(Hard Disk activity LED connector) is a 2-pin keyed Berg strip. It is
used to connect to front panel Hard Disk LED. This LED will light up whenever
one of your IDE devices is being accessed.
PW_BN
with a 2-pin Berg strip
on case front panel indicates the current power
status of system. It is used to connect to the Power Button on the front panel of
the case (if there is).
EXTSMI
is a 2-pin connector. This is the External System Management Interrupt
Button connector. Connect the second button on your ATX case to this connector.
Rressing that button will force the system into suspend mode. (The BIOS allows
specifying of the suspend state, and of the wake-up events that can wake the
system up again).