Asus PRIME B350M-A/CSM User Guide - Page 10
Layout contents, ATX power connectors 24-pin EATXPWR, 8-pin EATX12V - am4 motherboard
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1.2.1 Layout contents Connectors/Jumpers/Slots/LED 1. ATX power connectors (24-pin EATXPWR, 8-pin ATX12V) 2. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN) 3. M.2 Socket 3 4. AMD AM4 CPU socket 5. DDR4 DIMM slots 6. AMD B350 SATA 6.0Gb/s ports (SATA6G_1~6) 7. Clear RTC RAM (2-pin CLRTC) 8. System panel connector (10-1 pin PANEL) 9. Speaker connector (4-pin SPEAKER) 10. USB 3.0 connector (20-1 pin USB3_12) 11. USB 2.0 connectors (10-1 pin USB34,56) 12. Serial port connector (10-1 pin COM) 13. Front panel audio connector (10-1 pin AAFP) 14. Digital audio connector (4-1 pin SPDIF_OUT) 15. PCI Express 2.0 x1 slots 16. PCI Express x16 slot 17. Fan RGB header (4-pin FAN_RGB_HEADER) Page 1-2 1-2 1-3 1-3 1-3 1-3 1-4 1-4 1-4 1-5 1-5 1-5 1-5 1-6 1-6 1-6 1-7 1. ATX power connectors (24-pin EATXPWR, 8-pin EATX12V) These connectors are for ATX power supply plugs. The power supply plugs are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit. • We recommend that you use an EATX 12V Specification 2.0‑compliant power supply unit (PSU) with a minimum of 300W power rating. This PSU type has 24-pin and 8-pin power plugs. GND GND GND GND EATX12V PIN 1 +12V DC +12V DC +12V DC +12V DC • DO NOT forget to connect the 4-pin/8-pin ATX +12V power plug. Otherwise, the system will not boot up. EATXPWR • We recommend that you use a PSU with higher power output when configuring a system with more power-consuming devices or when you intend to install additional devices. The system may become unstable or may not boot up if the power is inadequate. • If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended +3 Volts +12 Volts +12 Volts +5V Standby Power OK GND +5 Volts GND +5 Volts GND +3 Volts +3 Volts PIN 1 GND +5 Volts +5 Volts +5 Volts -5 Volts GND GND GND PSON# GND -12 Volts +3 Volts Power Supply Wattage Calculator at http://support.asus.com/ PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details. 2. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN) Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector. 1-2 Chapter 1: Product introduction