Asus PRIME B250M-K Motherboard Pin Definition.English
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- Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 1
1 Motherboard Pin Definition E11133 Revised Edition v2 December 2015 - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 2
Contents Motherboard Pin Definition 1-1 1 Headers...1-3 2 Jumpers...1-4 3 Internal Connectors 1-6 4 Onboard LEDs 1-16 5 Onboard buttons and switches 1-17 1-2 Motherboard Pin Definition - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 3
system hangs due to overclocking. For system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature. Shut down and reboot the system, then the BIOS automatically resets parameter settings to default values. 2. RTC Battery header (2-pin BATT_CON) This connector is for the lithium - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 4
do not need to clear the RTC when the system hangs due to overclocking. For system failure due to overclocking, use the CPU Parameter Recall (C.P.R) feature. Shut down and reboot the system so the BIOS can automatically reset parameter settings to default values. 2. Intel® ME jumper (3-pin DIS_ME - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 5
to wake 12 23 up from S3 and S4 sleep modes (no power to CPU, DRAM in slow +5V +5VSB refresh, power supply in reduced power mode). ATX power supply that can supply at least 1A on the +5VSB lead, and a corresponding setting in the BIOS. 12 23 KB_USBPWB +5V +5VSB (Default) 5. Display panel - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 6
CPU_FAN connector supports a CPU fan of maximum 1A (12 W) fan power. USB3+5V IntA_P1_SSRXIntA_P1_SSRX+ GND IntA_P1_SSTXIntA_P1_SSTX+ GND IntA_P1_DIntA_P1_D+ GND 3. USB 3.0 connector (20-1 pin) This connector allows you to connect a USB 3.0 module for additional USB 3.0 front or rear panel ports - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 7
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 Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details. 7. Speaker connector - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 8
a high-definition front panel audio module to this connector to avail of the motherboard's high-definition connector (26-1 pin LPT) The LPT (Line Printing Terminal) connector supports devices such as a printer. LPT standardizes as IEEE 1284, which is the parallel port interface on IBM PC-compatible - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 9
LVDS in the BIOS setup if the LVDS connectors (7-pin SATA6G) These connectors connect to SATA 6.0 Gb/s hard disk drives via SATA 6.0 Gb/s signal cables. SATA6G You must install Windows® XP Service the onboard Intel® chipset. The SATAEXPRESS connector can support one SATA Express device or two SATA - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 10
PANEL) This connector supports several chassis-mounted functions. • System power LED (2-pin PWR_LED) F_PANEL +PWR_LED- PWR_LED+ PWR_LED+5V Ground Ground Speaker This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector. The system power LED lights - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 11
System panel connector (20-5 pin PANEL) This connector supports several chassis-mounted functions. • System power LED (4-pin +PWR_LED-) PANEL +PWR_LED- PWR_SW SPEAKER PLED+ PLEDPWR Ground +5V_SPKO Ground Ground Speaker This 2-pin connector is for the system power LED. Connect the chassis power - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 12
supports several chassis-mounted functions. • System power LED (4-pin +PWR_LED-) PANEL +PWR_LED- PWR_SW SPEAKER PLED+ PLEDPWR GND +5V GND GND Speaker Intruder# This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector. The system power LED lights - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 13
1 NC CLKRUN SERIRQ NC GND LAD1 LAD2 NC GND TPM connector (14-1 pin TPM) PWRDWN F_SERIRQ F_FRAME# F_LAD3 F_LAD2 F_LAD1 F_LAD0 This connector supports a Trusted Platform Module (TPM) system, which can securely NC NC NC NC NC NC NC GND S_USB_PN10_R S_USB_PP10_R GND Motherboard Pin Definition 1-13 - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 14
20. Flat panel display brightness connector (8-pin LCD_BLKT_PANEL) This connector is for the LCD panel backlight and brightness controls. It enables the LCD panel backlight, provides backlight control signals, and provides brightness control signals for the brightness button on the front panel. - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 15
(4-pin DMIC) The DMIC connector is for connecting the digital microphone module used in All-in-One chassis. DMIC +3.3V DMIC_DATA GND DMIC_CLK PIN 1 Prog_LED +3.3 VSB PWRBT# +5 VSB USB+ SCI/SMI GPIO Ground SMB_SLK SMB_Data HDMI CEC No Connection USBWDTO#/GPIO Motherboard Pin Definition 1-15 - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 16
motherboard booting process. If an error is found, the corresponding LED flashes until the problem is solved. This user-friendly design provides an intuitive way to locate the root problem within seconds. 4. KeyBot LED (KEYBOT_LED) This LED lights up when the KeyBot button is pressed. 5. USB BIOS - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 17
boot and load the BIOS default settings. A message will appear during POST reminding you that the BIOS has been restored to its default settings. • We recommend that you download and update to the latest BIOS version from the ASUS website at www.asus.com after using the MemOK! function. Motherboard - Asus PRIME B250M-K | Motherboard Pin Definition.English - Page 18
CMOS button (CLR_CMOS) Press this button to clear the BIOS setup information only when the systems hangs due to overclocking. 5. KeyBot button (KeyBot) Press this button to activate the KeyBot feature. The KeyBot feature supports USB keyboards only. KEBOT 6. Sonic SoundStage button (SOUNDSTAGE
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Motherboard Pin
Deļ¬nition
1
E11133
Revised Edition v2
December 2015