ASRock Fatal1ty B250 Gaming K4 User Manual - Page 30
ATX 12V Power, Quiet Fan connector.
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Fatal1ty B250 Gaming K4 Series CPU Fan Connector (4-pin CPU_FAN1) (see p.7, No. 2) FAN_SPEED_CONTROL FAN_SPEED FAN_VOLTAGE GND 4 This motherboard pro- 3 2 vides a 4-Pin CPU fan 1 (Quiet Fan) connector. If you plan to connect a 3-Pin CPU fan, please connect it to Pin 1-3. ATX Power Connector (24-pin ATXPWR1) (see p.7, No. 5) 12 24 1 13 This motherboard provides a 24-pin ATX power connector. To use a 20-pin ATX power supply, please plug it along Pin 1 and Pin 13. ATX 12V Power Connector (8-pin ATX12V1) (see p.7, No. 1) 8 5 This motherboard pro- vides an 8-pin ATX 12V power connector. To use a 4 1 4-pin ATX power supply, please plug it along Pin 1 and Pin 5. Thunderbolt AIC Connectors (5-pin TB1) (see p.7, No. 22) (10-pin TB2) (see p.7, No. 23) DUMMY I2C_DATA I2C_CLOCK IRQ GND 1 GND SLP_S4# SLP_S3# PLUG_EVENT FRC_PWR Please connect a Thunderbolt™ add-in card (AIC) to the Thunderbolt AIC connector via the GPIO cable. *Please install the Thunderbolt™ AIC card to PCIE4 (default slot). *Only one Thunderbolt AIC Card is supported on this motherboard. English 23