User ManualTable of ContentsAIMB-2581Contents51 Product Introduction91.1 Before You Proceed101.2 Motherboard Overview101.2.1 Placement Direction101.2.2 Screw Holes111.3 Motherboard Layout12Figure 1.1 Motherboard Layout121.4 Specifications131.5 Operating System support list141.6 Board Diagram151.7 Ordering Information161.8 Riser Card161.9 Bracket View161.10 Accessories161.11 Layout Content List17Table 1.1: Jumper Setting List17Table 1.2: JSETCOM1: COM1/+5 V/+12 V Selection17Table 1.3: JSETCOM2: COM2 RS232/422/485 Mode Selection17Table 1.4: CMOS1: Clear CMOS18Table 1.5: J1:LCD Power 3.3 V/5.5 V Selection18Table 1.6: PSON1: ATX, AT Mode Selection18Table 1.7: JWDT1: Watchdog Timer Output Option19Table 1.8: JOBS: HW monitor191.12 Central Processing Unit (CPU) for AIMB-258191.12.1 Installing the CPU201.12.2 Installing the CPU Heatsink and Fan221.12.3 Uninstalling the CPU Heatsink and Fan241.13 System Memory251.13.1 DIMM Sockets Location251.13.2 System Memory251.13.2.1 Memory Installation Procedures251.13.2.2 Cache Memory251.13.3 Memory Support List26Table 1.9: SODIMM DDR3261.14 Connectors271.14.1 Rear Panel Connectors27Table 1.10: Rear Panel Connectors27Table 1.11: LEDs271.14.2 CPU Fan Connector (CPUFAN1)281.14.3 System Fan Connector (SYSFAN1, SYSFAN2)291.14.4 Serial Port Connector 3456 (COM3456)301.14.5 Front Headphone Connector (HD1)301.14.6 Front Panel Connector (JFP1/JFP2/JFP3)311.14.7 ATX soft power switch (JFP1 / PWR_SW)311.14.8 Reset (JFP1 / RESET)311.14.9 HDD LED (JFP2 / HDDLED)311.14.10 External speaker (JFP2 / SPEAKER)311.14.11 Power LED and keyboard lock connector (JFP3 / PWR_LED&KEY LOCK)32Table 1.12: ATX power supply LED status (No support for AT power)321.14.12 USB 2.0 Connector (USB56, USB78)321.14.13 ATX Power Connector (ATX1)331.14.14 LCD Inverter Connector (VP1)341.14.15 LVDS Connector (LVDS1)341.14.16 Digital I/O Connector (DIO_CN1)351.14.17 Serial ATA Connector 1 & 2 (SATA1, SATA2)351.14.18 PCIe x 16 Slot (PCIE X 16)361.14.19 SPI Flash Connector(SPI_CN1)361.14.20 Memory Connector Channel A/B(DIMM1/2)371.14.21 SPDIF1 out connector(SPDIF1)371.14.22 CF connector382 BIOS Operation392.1 BIOS Introduction402.2 BIOS Setup402.2.1 Main Menu412.2.2 Standard CMOS Features422.2.3 Advanced BIOS Features432.2.4 Advanced Chipset Features442.2.5 Integrated Peripherals452.2.6 USE Device Setting472.2.7 Power Management Setup482.2.8 PnP/PCI Configurations502.2.9 PC Health Status502.2.10 Load Setup Defaults512.2.11 Set Password513 Chipset Software Install Utility533.1 Before you Begin543.2 Introduction543.3 Windows Vista/XP Driver Setup554 VGA Setup574.1 Introduction584.2 Windows Vista/XP Driver Setup585 LAN Configuration595.1 Introduction605.2 Features605.3 Installation605.4 Windows Vista/XP Driver Setup (Realtek RTL8111C)60A Programming the Watchdog Timer63A.1 Programming the Watchdog Timer64A.1.1 Watchdog timer overview64A.1.2 Programming the Watchdog Timer64Table A.1: Watchdog Timer Registers66A.1.3 Example Program67B Pin Assignments71B.1 USB Connector (USB56,USB78)72Table B.1: USB5/USB6 Connector (USB56)72B.2 VGA Connector (VGA1A)72Table B.2: VGA Connector (VGA1A)72B.3 DVI Connector (VGA1B)72Table B.3: DVI Connector (VGA1B)72B.4 RS-232 Serial Port (COM1~COM2)73Table B.4: RS-232 Serial Port (COM1~COM2)73B.5 RS-232 Serial Port (COM3 ~ COM6)74Table B.5: RS-232 Serial Port (COM23)74B.6 PS/2 Keyboard/ Mouse Connector (KBMS1)75Table B.6: PS/2 Keyboard/ Mouse Connector (KBMS1)75B.7 CPU Fan Power Connector (CPUFAN1)75Table B.7: CPU Fan Power Connector (CPUFAN1)75B.8 Power LED & Keyboard Lock Connector (JFP3)76Table B.8: Power LED and Keylock Connector (JFP3)76B.9 HDD LED and External Speaker Connector(JFP2/HDD LED and SPEAKER)76Table B.9: External Speaker Connector (JFP2/SPEAKER)76B.10 ATX Soft Power Switch and Reset Connector (JFP1/ PWR-SW and RESET)77Table B.10: Audio Front Panel Connector (JFP1/ RESET)77B.11 Audio Front Panel Connector (FPAUD1)77Table B.11: Audio front panel connector (FPAUD1)77B.12 GPIO Pin Header (GPIO1)78Table B.12: GPIO Pin Header (GPIO1)78B.13 LVDS Connector (LVDS1)79Table B.13: LVDS Connector (LVDS1)79B.14 LVDS Power Jumper (J1)80Table B.14: LVDS Power Jumper (J1)80B.15 LVDS Invert (VP1)80Table B.15: LVDS Invert (VP1)80B.16 System I/O Ports81Table B.16: System I/O Ports81B.17 DMA Channel Assignments81Table B.17: DMA Channel Assignments81B.18 Interrupt Assignments82Table B.18: Interrupt Assignments82B.19 1st MB Memory Map82Table B.19: 1st MB Memory Map82Size: 5.22 MBPages: 84Language: EnglishOpen manual