Motherboard Pin Definition E11133 Revised Edition v2 December 2015
Contents Motherboard Pin Definition 1-2 1-1 1 Headers........................................................................................................ 1-3 2 Jumpers....................................................................................................... 1-4 3 Internal Connectors.................................................................................... 1-6 4 Onboard LEDs...........................................................................................
1 Headers Clear RTC RAM (2-pin CLRTC) This header allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords. CLRTC +3V_BAT GND 1. PIN 1 To erase the RTC RAM: 2. 1. Turn OFF the computer and unplug the power cord. 2.
2 1. Jumpers Clear RTC RAM (3-pin CLRTC) This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords. To erase the RTC RAM: 1 CLRTC 2 2 3 Normal (Default) Clear RTC 1. Turn OFF the computer and unplug the power cord. 2.
USB device wake-up (3-pin USBPWF) Set these jumpers to +5V to wake up the computer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in low power mode) using the connected USB devices. Set to +5VSB to wake up from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh, power supply in reduced power mode). The USB device wake-up feature requires a power supply that can provide 500mA on the +5VSB lead for each USB port; otherwise, the system would not power up.
Internal Connectors 1. Serial port connector (10-1 pin COM) This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis. RXD DTR DSR CTS COM PIN 1 DCD TXD GND RTS RI 3 2. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN) C USB 3.
Single USB 2.0 connector (5-1 pin) This connector is for a USB 2.0 port. Connect the USB module cable to this connector, then install the module to a slot opening at the back of the system chassis. This USB connector complies with USB 2.0 specifications and supports up to 480Mbps connection speed. USBE5 +5V DC Data(negative) Data(positive) Groud 5. PIN 1 EATX12V +12V DC +12V DC +12V DC +12V DC PIN 1 GND GND GND GND PIN 1 ATX12V +12V DC +12V DC These connectors are for ATX power supply plugs.
Front panel audio connector (10-1 pin AAFP) This connector is for a chassis-mounted front panel audio I/O module that supports either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector. Legacy AC’97 compliant definition Digital audio connector (4-1 pin SPDIF_OUT) SPDIFOUT GND SPDIF_OUT +5V This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port.
12. LVDS connector (40-pin LVDS) This connector is for an LCD monitor that supports Lowvoltage Differential Signaling (LVDS) interface. PIN 21 13. ODD_Lane3_P ODD_Lane3_N ODD_Lane2_P ODD_Lane2_N ODD_Lane1_P ODD_Lane1_N ODD_Lane0_P ODD_Lane0_N EVEN_Lane3_P EVEN_Lane3_N EVEN_Lane2_P EVEN_Lane2_N EVEN_Lane1_P EVEN_Lane1_N EVEN_Lane0_P EVEN_Lane0_N EDID_GND LCD_VCC LCD_VCC LCD_VCC PIN 1 N/C EDID_3.
16. System panel connector (10-1 pin F_PANEL) This connector supports several chassis-mounted functions. F_PANEL System power LED (2-pin PWR_LED) +PWR LED PWR BTN PWR_LED+ PWR_LEDPWR GND • This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector. The system power LED lights up when you turn on the system power, and blinks when the system is in sleep mode.
System panel connector (20-5 pin PANEL) Hard disk drive activity LED (2-pin +HDD_LED-) This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable to this connector. The HDD LED lights up or flashes when data is read from or written to the HDD. • PIN 1 +HDD_LED- SPEAKER +5V_SPKO Ground Ground Speaker PLED+ PLEDPWR Ground This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector.
System panel connector (20-3 pin F_PANEL) Hard disk drive activity LED (2-pin +HDD_LED-) SPEAKER +5V GND GND Speaker Intruder# PLED+ PLEDPWR GND This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector. The system power LED lights up when you turn on the system power, and blinks when the system is in sleep mode.
TPM connector (20-1 pin TPM) TPM GND PIN 1 NC CLKRUN SERIRQ NC GND LAD1 LAD2 NC This connector supports a Trusted Platform Module (TPM) system, which can securely store keys, digital certificates, passwords, and data. A TPM system also helps enhance network security, protects digital identities, and ensures platform integrity. PWRDWN GND +3VSB NC LAD0 +3V LAD3 PCIRST# FRAME PCICLK 17.
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. 21. LCD_BLKT_PANEL PIN 1 BKLT_EN BKLT_PWM BKLT_PWR BKLT_PWR BKLT_GND/Brightness_GND BKLT_GND/Brightness_GND Brightness_up Brightness_Down 20.
25. DMIC connector (4-pin DMIC) The DMIC connector is for connecting the digital microphone module used in All-in-One chassis. +3.3V DMIC_DATA GND DMIC_CLK DMIC PIN 1 26. Custom header (14-pin CUSTOM) The custom header is for connecting customized modules for additional features. CUSTOM PIN 1 Prog_LED +3.
4 1. Onboard LEDs Standby Power LED The motherboard comes with a standby power LED that lights up to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should shut down the system and unplug the power cable before removing or plugging in any motherboard component. The illustration below shows the location of the onboard LED. 2. SB_PWR ON Standby Power OFF Powered Off Hard Disk LED (HD_LED) The Hard Disk LED is designed to indicate the hard disk activity.
5 Onboard buttons and switches Onboard buttons allow you to fine-tune performance when working on a bare or opencase system. This is ideal for overclockers and gamers who continually change settings to enhance system performance. 1. Power-on button (START) The motherboard comes with a power-on button that allows you to power up or wake up the system.
4. Clear 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. KEBOT The KeyBot feature supports USB keyboards only. 6. Sonic SoundStage button (SOUNDSTAGE) Press this button to activate the Sonic SoundStage feature. SOUNDSTAGE The debug code on the Q-Code LED shows the current Sonic SoundStage profile when you press the Sonic SoundStage button. 7.
