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Chassis Speaker Header
(4-pin SPEAKER1)
(see p.1, No. 6)
Chassis Fan Connector
(3-pin CHA_FAN1)
(see p.1, No. 11)
CPU Fan Connectors
(3-pin CPU_FAN1)
(see p.1, No. 2)
ATX Power Connector
(24-pin ATXPWR1)
(see p.1, No. 4)
Chassis Intrusion Header
(2-pin CI1)
(see p.1, No. 12)
TPM Header
(17-pin TPMS1)
(see p.1, No. 1)
DUMMY
SPEAKER
1
+5V
DUMMY
CHA_FAN_SPEED
FAN_VOLTAGE
GND
GND
+12V
CPU_FAN_SPEED
12
24
1
13
1
GND
Signal
1
Q1900B-ITX / D1800B-ITX
Please connect the chassis
speaker to this header.
Please connect fan cable
to the fan connector and
match the black wire to
the ground pin.
Please connect the CPU
fan cable to the connector
and match the black wire
to the ground pin.
This motherboard pro-
vides a 24-pin ATX power
connector. To use a 20-pin
ATX power supply, please
plug it along Pin 1 and Pin
13.
This motherboard supports
CASE OPEN detection feature
that detects if the chassis cove
has been removed. This feature
requires a chassis with chassis
intrusion detection design.
This connector supports Trusted
Platform Module (TPM) system,
which can securely store keys,
digital certificates, passwords,
and data. A TPM system also
helps enhance network security,
protects digital identities, and
ensures platform integrity.
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