ASROCK N68-GS4 FX R2.0 User Manual page 21

Though this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin
CPU fan still can work successfully even without the fan speed control function.
If you plan to connect the 3-Pin CPU fan to the CPU fan connector on this
motherboard, please connect it to Pin 1-3.
ATX Power Connector
(24-pin ATXPWR1)
(see p.10 or 11 No. 4)
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.
ATX 12V Power Connector
(8-pin ATX12V1)
(see p.10 or 11 No. 2)
Though this motherboard provides 8-pin ATX 12V power connector, it can still
work if you adopt a traditional 4-pin ATX 12V power supply. To use the 4-pin
ATX power supply, please plug your power supply along with Pin 1 and Pin 5.
Chassis Intrusion Header
(2-pin CI1)
(see p.10 or 11 No. 11)
Pin 1-3 Connected
3-Pin Fan Installation
Please connect an ATX power
12 24
supply to this connector.
1 13
20-Pin ATX Power Supply Installation
Please note that it is necessary
4 8
to connect a power supply with
ATX 12V plug to this connector.
1 6
Failing to do so will cause power
up failure.
4-Pin ATX 12V Power Supply Installation
This motherboard supports CASE
GND OPEN detection feature that
Signal
1
detects if the chassis cover has
been removed. This feature
requires a chassis with chassis
intrusion detection design.
2 1 2 1 2 1 2 1 2 1
12 24
1 13
4 8
1 6