ASRock AD2550B-ITX Quick Installation Guide - Page 17

Chassis Fan Connector

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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 assign-ments are matched correctly. Chassis Speaker Header (4-pin SPEAKER 1) (see p.2 No. 12) Chassis Fan Connector (3-pin CHA_FAN1) (see p.2 No. 3) CPU Fan Connector (3-pin CPU_FAN1) (see p.2 No. 1) GND +12V CPU_FAN_SPEED ATX Power Connector (24-pin ATXPWR1) (see p.2 No. 5) 12 24 Please connect the chassis speaker to this header. Please connect the 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. Please connect an ATX power supply to this connector. 1 13 Though this motherboard provides 24-pin ATX power connector, 12 24 it can still work if you adopt a traditional 20-pin ATX power supply. To use the 20-pin ATX power supply, please plug your power supply along with Pin 1 and Pin 13. 20-Pin ATX Power Supply Installation 1 13 English 17 ASRock AD2550B-ITX Motherboard

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17
ASRock
AD2550B-ITX
Motherboard
English
Chassis Speaker Header
Please connect the chassis
(4-pin SPEAKER 1)
speaker to this header.
(see p.2
No. 12)
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 assign-ments are
matched correctly.
ATX Power Connector
Please connect an ATX power
(24-pin ATXPWR1)
supply to this connector.
(see p.2
No. 5)
12
1
24
13
20-Pin ATX Power Supply Installation
Though this motherboard provides 24-pin ATX power connector,
it can still work if you adopt a traditional 20-pin ATX power supply.
To use the 20-pin ATX power supply, please plug your
power supply along with Pin 1 and Pin 13.
12
1
24
13
Chassis Fan Connector
Please connect the fan cable
(3-pin CHA_FAN1)
to the fan connector and
(see p.2
No. 3)
match the black wire to the
ground pin.
CPU Fan Connector
Please connect the CPU fan
(3-pin CPU_FAN1)
cable to the connector and
(see p.2
No. 1)
match the black wire to the
ground pin.
GND
+12V
CPU_FAN_SPEED