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4.2 Onboard Headers and Connectors
Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over these
headers and connectors. Placing jumper caps over the headers and connectors will cause per-
manent damage to the motherboard!
JP1 Header
(8-pin JP1)
(
see p. 15, No. 4)
* Auto clear CMOS when system boot improperly.
System Panel Header
(9-pin PANEL1)
(see p. 15, No. 5)
This header accommodates several system front panel functions.
Connect the power switch, reset switch and system status indicator on the chassis to this
header according to the pin assignments below. Note the positive and negative pins before
connecting the cables.
PWRBTN (Power Switch):
Connect to the power switch on the chassis front panel. You may configure the way to turn
off your system using the power switch.
RESET (Reset Switch):
Connect to the reset switch on the chassis front panel. Press the reset switch to restart the
computer if the computer freezes and fails to perform a normal restart.
PLED (System Power LED):
Connect to the power status indicator on the chassis front panel. The LED is on when the
system is operating. The LED keeps blinking when the system is in S3 sleep state. The LED
is off when the system is in S4 sleep state or powered off (S5).
HDLED (Hard Drive Activity LED):
Connect to the hard drive activity LED on the chassis front panel. The LED is on when the
hard drive is reading or writing data.
The front panel design may differ by chassis. A front panel module mainly consists of
power switch, reset switch, power LED, hard drive activity LED, speaker and etc. When
connecting your chassis front panel module to this header, make sure the wire assignments
and the pin assignments are matched correctly.
7
1
8
2
1
2
9
10
NUCS Ultra 100 BOX Series
Pin
Signal Name
JP1_12
SIO AT
JP1_34
CLRMOS2
JP1_46
Clear CMOS
JP1_57
DACC* (Default)
JP1_68
Normal (Default)
Pin
Signal Name
Signal Name
1
HDLED+
PLED+
3
HDLED-
PLED-
5
GND
PWRBTN#
7
RESET#
GND
9
DUMMY
Pin
2
4
6
8
10
17
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