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EBC 354 User Manual

Chapter 3: BIOS Setup

Chipset

This section gives you functions to configure the system based on the
specific features of the chipset. The chipset manages bus speeds and
access to system memory resources.

Host Bridge

This section is used to configure the host bridge features.

Intel IGD Configuration

Configures the options for Intel IGD function.

Memory Information

Detects and displays information on the memory installed in the system.

Summary of Contents for EBC 354

Page 1: ...NEXCOM International Co Ltd NEXCOM International Co Ltd Published April 2012 www nexcom com Industrial Computing Solutions Embedded Computing 3 5 CPU Board EBC 354 User Manual ...

Page 2: ...tance ix Conventions Used in this Manual ix Global Service Contact Information x Package Contents xii Ordering Information xiii Chapter 1 Product Introduction 1 Overview 1 Key Features 1 Hardware Specifications 2 Knowing Your EBC 354 5 Chapter 2 Jumpers and Connectors 6 Before You Begin 6 Precautions 6 Jumper Settings 8 Locations of the Jumpers and Connectors 9 Jumpers 10 CMOS Clear Select 10 Powe...

Page 3: ... 21 SMBus Connector 22 Reset Button Connector 22 Power Button Connector 22 Line out Connector 23 Mic in Connector 23 Speaker out Connector 24 LED Connector 24 USB4 5 JST Connector 25 LVDS Connector 25 LVDS Backlight Connector 26 ATX Power Output Connector 26 Mini PCIe Slot 27 Block Diagram 28 Board Dimensions 29 Chapter 3 BIOS Setup 30 About BIOS Setup 30 When to Configure the BIOS 30 Default Conf...

Page 4: ...ar purpose is also disclaimed Acknowledgements EBC 354 is a trademark of NEXCOM International Co Ltd All other product names mentioned herein are registered trademarks of their respective owners Regulatory Compliance Statements This section provides the FCC compliance statement for Class B devices and describes how to keep the system CE compliant Declaration of Conformity FCC This equipment has be...

Page 5: ...um Cr6 0 1 or 1 000ppm Polybrominated biphenyls PBB 0 1 or 1 000ppm and Polybrominated diphenyl Ethers PBDE 0 1 or 1 000ppm In order to meet the RoHS compliant directives NEXCOM has established an engineering and manufacturing task force in to implement the introduction of green products The task force will ensure that we follow the standard NEXCOM development procedure and that all the new RoHS c...

Page 6: ...ich components are included Otherwise NEXCOM is not responsible for the devices parts Customers are responsible for the safe packaging of defective products making sure it is durable enough to be resistant against further damage and deterioration during transportation In case of damages occurred during transportation the repair is treated as Out of Warranty Any products returned by NEXCOM to other...

Page 7: ...ace cart or stand Follow all warnings and cautions in this manual When replacing parts ensure that your service technician uses parts specified by the manufacturer Avoid using the system near water in direct sunlight or near a heating device The load of the system unit does not solely rely for support from the rackmounts located on the sides Firm support from the bottom is highly necessary in orde...

Page 8: ...y 7 Put the board on a stable surface Dropping it or letting it fall may cause damage 8 Wear anti static wrist strap 9 Do all preparation work on a static free surface 10 Make sure the voltage of the power source is correct before connecting the equipment to the power outlet 11 Hold the board only by its edges Be careful not to touch any of the components contacts or connections 12 All cautions an...

Page 9: ...nds and handle it with care 2 Maintenance to keep the unit clean use only approved cleaning products or clean with a dry cloth 3 CompactFlash Turn off the unit s power before inserting or removing a CompactFlash storage card Conventions Used in this Manual Warning Information about certain situations which if not observed can cause personal injury This will prevent injury to yourself when performi...

Page 10: ...H Leopoldstraße Business Centre Leopoldstraße 244 80807 Munich Germany Tel 49 89 208039 278 Fax 49 89 208039 279 http www nexcom eu Italy NEXCOM ITALIA S r l Via Gaudenzio Ferrari 29 21047 Saronno VA Italia Tel 39 02 9628 0333 Fax 39 02 9619 8846 http www nexcom eu United Kingdom NEXCOM EUROPE 10 Vincent Avenue Crownhill Business Centre Milton Keynes Buckinghamshire MK8 0AB United Kingdom Tel 44 1...

Page 11: ... District Wuhan 430070 China Tel 86 27 8722 7400 Fax 86 27 8722 7400 http www nexcom cn China Chengdu Office 9F Shuxiangxie Xuefu Garden No 12 Section 1 South Yihuan Rd Chengdu 610061 China Tel 86 28 8523 0186 Fax 86 28 8523 0186 http www nexcom cn China Shenzhen Office Western Room 708 Block 210 Tairan Industry Trading Place Futian Area Shenzhen 518040 China TEL 86 755 833 7203 FAX 86 755 833 721...

Page 12: ...101 RS DVI Y CABLE DVI I TO DVI I L 100mm D SUB L 105mm 1 3 60233PS203X00 EBC563IO PS2 KB MS CABLE EDI 201061080201 RS PS2 TO JST 8PIN 2 54mm L 200mm 10mm 1 4 60233PW148X00 SATA POWER CABLE BEST 901 0405 300R HOUSING 4P TO HOUSING 5P L 300mm 1 5 60233SIO62X00 COMFORT CABLE CP NEX 110819 01 UL2651 28x9C DB9 TU1001 10 L 200mm 2 6 60233USB59X00 USB CABLE EDI 262082060204 RS DUAL PORT USB CON TO JST 6...

Page 13: ...rdering Information The following information below provides ordering information for EBC 354 EBC354 2550 P N 10E00035403X0 RoHS Compliant Low power Embedded Board with Intel Atom D2550 processor and based on Intel integrated graphics engine w VGA 24bit LVDS 6x USB2 0 4x COMs 2x Mini PCIe 2x Gigabit LAN 2x SATA ...

Page 14: ...essor D2550 1 86GHz CPU Intel NM10 Express chipset One 204 pin SO DIMM socket supports up to 4 GB DDR3 800 1066 MHz SDRAM Display VGA DVI D HDMI LVDS 1x DF13 20 pin 18 24 bit Single channel 2x Mini PCIe 2x Intel 82574L PCI Express Gigabit Ethernet 2x SATA 6x USB 4 in 4 out GPIO Mic in Line out Speaker out Serial port 3x RS232 1x RS232 422 485 port Support AT ATX mode and Single 12V DC input ...

Page 15: ...ch enhances Gfx video support DX10 1 OpenGL 3 0 and Full HD Decode MPEG2 VC1 AVC H 264 delivers sophisticated graphics for large display applications supports dual independent displays support at graphics base frequency up to 640MHz and provides a wealth of options for high resolution displays Analog VGA interface 1 x VGA within DVI I connector Resolution up to 1920x1200 75Hz DVI interface 1 x DVI...

Page 16: ...ton Edge I O Interface 1x DVI I connector 1x HDMI connector 2x dual stack USB connector 2x RJ45 with LED connector Watchdog Timer Watchdog timeout can be programmed by software from 1 second to 255 seconds and from 1 minute to 255 minutes Tolerance 15 under room temperature of 25 C Storage 2x SATA port System Monitor Monitoring of 4 voltages and 2 temperatures 4 Voltages Vcore 12V 3 3V 5V 2 Temper...

Page 17: ...pyright 2012 NEXCOM International Co Ltd All rights reserved 4 EBC 354 User Manual Chapter 1 Product Introduction Relative humidity Operating 10 to 90 non condensing Certifications CE approval FCC Class A ...

Page 18: ...n Knowing Your EBC 354 COM4 COM3 COM2 COM1 SATA1 SATA2 SATA Power K B Mouse GPIO SIM Card SIM Card Battery Connector CMOS SMBUS Mini PCIe Reset Power AT ATX Select Line out Mic in Speaker out LED LAN2 LAN1 USB 4 5 USB2 USB1 HDMI DVI I CPU FAN Intel Atom D2550 under the fan heatsink 12V DC Input LVDS LVDS Backlight ...

Page 19: ...he connections It is recommended that you do not use needle nosed pliers to disconnect connections as these can damage the soft metal or plastic parts of the connectors Before working on internal components make sure that the power is off Ground yourself before touching any internal components by touching a metal object Static electricity can damage many of the electronic components Humid environm...

Page 20: ...ectricity by touching the bare metal chassis of the unit case or the bare metal body of any other grounded appliance Hold electronic circuit boards by the edges only Do not touch the components on the board unless it is necessary to do so Don t flex or stress the circuit board Leave all components inside the static proof packaging that they shipped with until they are ready for installation Use co...

Page 21: ...ng the jumpers ensure that the jumper caps are placed on the correct pins When the jumper cap is placed on both pins the jumper is short If you remove the jumper cap or place the jumper cap on just one pin the jumper is open Refer to the illustrations below for examples of what the 2 pin and 3 pin jumpers look like when they are short on and open off Two Pin Jumpers Open Left and Short Right Three...

Page 22: ...012 NEXCOM International Co Ltd All rights reserved 9 EBC 354 User Manual Chapter 2 Jumpers and Connectors Locations of the Jumpers and Connectors The figure below shows the location of the jumpers and connectors ...

Page 23: ... Clear Select Connector type 1x3 3 pin header Connector location JP4 Pin Settings 1 2 On Normal 2 3 On Clear BIOS 1 2 On default Pin Definition 1 NC 2 I_RTCRST 3 GND Power Mode Select Connector type 1x3 3 pin header Connector location JP8 Pin Settings 1 2 On AT 2 3 On ATX Pin Definition 1 I_PWRBT 2 AT_PWRBT 3 ATX_BOT 1 2 On default ...

Page 24: ...onnector location JP12 Pin Definition 1 VCC3 2 VCC_SEL 3 VCC5 1 2 On default Panel Backlight Control Mode Connector type 2x3 6 pin header 2 54mm pitch Connector location JP13 Pin Definition Pin Definition 1 CCFLBKLTCTRL 2 CCFL_PWM 3 PL_BKLTCTRL 4 CCFLBKLTCTRL 5 P_BKLTCTRL 6 PWM_DUTY 1 3 On Analog signal output for dimming control default 3 5 On PWM signal output for dimming control ...

Page 25: ...I_I_5V 15 DVI_I_GND 16 HPDET_I 17 CH_TX0_N 18 CH_TX0_P 19 DVI_I_GND 20 DDCCLK_VGA 21 DDCDATA_VGA 22 DVI_I_GND 23 CH_CLK_P 24 CH_CLK_N C1 RED_VGA C2 GREEN_VGA C3 BLUE_VGA C4 HSYNC_VGA C5A VGADET C5B CRT_GND MH1 CHASIS_GND MH2 CHASIS_GND HDMI Connector type HDMI port Connector location CN8 Pin Definition Pin Definition 1 HDMI_DATA2_P 2 GND 3 HDMI_DATA2_N 4 HDMI_DATA1_P 5 GND 6 HDMI_DATA1_N 7 HDMI_DA...

Page 26: ...tion 1 P5V_USB_P01 2 USBCON_0N 3 USBCON_0P 4 GND 5 P5V_USB_P01 6 USBCON_1N 7 USBCON_1P 8 GND MH1 USB1_MTH_GND MH2 USB1_MTH_GND MH3 USB1_MTH_GND MH4 USB1_MTH_GND USB2 3 Ports Connector type Dual USB port Type A Connector location USB2 Pin Definition Pin Definition 1 P5V_USB_P23 2 USBCON_2N 3 USBCON_2P 4 GND 5 P5V_USB_P23 6 USBCON_3N 7 USBCON_3P 8 GND MH1 USB2_MTH_GND MH2 USB2_MTH_GND MH3 USB2_MTH_G...

Page 27: ...ion 1 LAN1_MDI0P 2 LAN1_MDI0N 3 LAN1_MDI1P 4 LAN1_MDI2P 5 LAN1TCT LAN11V9 6 LAN1TCTG 7 LAN1_MDI2N 8 LAN1_MDI1N 9 LAN1_MDI3P 10 LAN1_MDI3N 11 LAN1_LEDACT 12 LAN1_ACTPW 13 LAN1_LINK 14 LAN1_LINK100 MH1 LAN1_MTH_GND MH2 LAN1_MTH_GND Pin Definition Pin Definition 1 LAN2_MDI0P 2 LAN2_MDI0N 3 LAN2_MDI1P 4 LAN2_MDI2P 5 LAN2TCT LAN21V9 6 LAN2TCTG 7 LAN2_MDI2N 8 LAN2_MDI1N 9 LAN2_MDI3P 10 LAN2_MDI3N 11 LAN...

Page 28: ...PU Fan Connector Connector type 1x4 4 pin Wafer 2 54mm pitch Connector location CN3 Pin Definition 1 GND 2 12V 3 CPUFANIN_R 4 CPUFANOUT_R COM1 Connector Connector type 1x10 10 pin header 1 0mm pitch Connector location J3 Pin Definition Pin Definition 1 SP1_DCD 2 SP1_RXD 3 SP1_TXD 4 SP1_DTR 5 GND 6 SP1_DSR 7 SP1_RTS 8 SP1_CTS 9 SP1_RI 10 GND ...

Page 29: ...RTS 8 SP2_CTS 9 SP2_RI 10 GND COM3 Connector Connector type 1x10 10 pin header 1 0mm pitch Connector location J2 Pin Definition Pin Definition 1 SP3_DCD 2 SP3_RXD 3 SP3_TXD 4 SP3_DTR 5 GND 6 SP3_DSR 7 SP3_RTS 8 SP3_CTS 9 SP3_RI 10 GND RS422 Pin Definition Pin Definition Pin Definition Pin Definition 1 TXD 2 TXD 3 RXD 4 RXD 5 GND 6 RTS 7 RTS 8 CTS 9 CTS RS485 Pin Definition Pin Definition Pin Defin...

Page 30: ...onnector Connector type 1x10 10 pin header 1 0mm pitch Connector location J1 SATA Power Connector Connector type 1x4 4 pin Wafer 2 54mm pitch Connector location CN1 Pin Definition Pin Definition 1 SP4_DCD 2 SP4_RXD 3 SP4_TXD 4 SP4_DTR 5 GND 6 SP4_DSR 7 SP4_RTS 8 SP4_CTS 9 SP4_RI 10 GND Pin Definition 1 12V 2 GND 3 GND 4 VCC5 ...

Page 31: ... type Standard Serial ATAII 7P 1 27mm SATA M 180 Connector location CN2 SATA2 Connector Connector type Standard Serial ATAII 7P 1 27mm SATA M 180 Connector location CN4 Pin Definition 1 GND 2 SATA_TXP0_C 3 SATA_TXN0_C 4 GND 5 SATA_RXN0_C 6 SATA_RXP0_C 7 GND Pin Definition 1 GND 2 SATA_TXP1_C 3 SATA_TXN1_C 4 GND 5 SATA_RXN1_C 6 SATA_RXP1_C 7 GND ...

Page 32: ...OM Power Connector Connector type 1x2 JST 2 pin header 2 5mm pitch Connector location J5 PS 2 Keyboard Mouse Connector Connector type 2x4 8 pin header 2 54mm Connector location JP3 Pin Definition Pin Definition 1 VCC5 2 GND Pin Definition Pin Definition 1 5V_KB 2 5V_KB 3 KDAT_R 4 MDAT_R 5 KCLK_R 6 MCLK_R 7 KBMS_GND 8 KBMS_GND ...

Page 33: ...in header 2 0mm pitch Connector location JP2 SIM Card Connector Connector type 2x3 6 pin header 2 0mm pitch Connector location JP1 Pin Definition Pin Definition 1 VCC5 2 GND 3 SIO_GPO24 4 SIO_GPI20 5 SIO_GPO25 6 SIO_GPI21 7 SIO_GPO26 8 SIO_GPI22 9 SIO_GPO27 10 SIO_GPI23 Pin Definition Pin Definition 1 UIM_PWR 2 GND 3 UIM_RESET 4 UIM_VPP 5 UIM_CLK 6 UIM_DATA ...

Page 34: ...pers and Connectors Battery Connector Connector type 1x2 JST 2 pin header 2 5mm pitch Connector location J6 SMBus Connector Connector type 1x3 3 pin header 2 00mm M 180 Connector location JP5 Pin Definition Pin Definition 1 GND 2 BAT_C Pin Definition Pin Definition 1 SMBCLK_MAIN 2 SMBDATA_MAIN 3 GND ...

Page 35: ...Jumpers and Connectors Reset Button Connector Connector type 1x2 2 pin header 2 00mm pitch Connector location JP6 Power Button Connector Connector type 1x2 2 pin header 2 00mm pitch Connector location JP7 Pin Definition Pin Definition 1 I_SYSRST 2 GND Pin Definition Pin Definition 1 ATX_BOT 2 GND ...

Page 36: ...ectors Line out Connector Connector type 1x4 4 pin header 2 0mm pitch Connector location JP9 Mic in Connector Connector type 1x4 4 pin header 2 0mm pitch Connector location JP10 Pin Definition Pin Definition 1 LOUT_L2 2 AGND 3 EXLINEOUT_JD 4 LOUT_R2 Pin Definition Pin Definition 1 MIC_L3 2 AGND 3 MIC_JD 4 LOUT_R3 ...

Page 37: ...tors Speaker out Connector Connector type 1x5 5 pin header 2 0mm pitch Connector location JP11 LED Connector Connector type 2x2 4 pin header 2 0mm pitch Connector location JP14 Pin Definition Pin Definition 1 FRONT_L 2 FRONT_L 3 AGND 4 FRONT_R 5 FRONT_R Pin Definition Pin Definition 1 PWRLEDP 2 GND 3 HDDLEDP 4 GND ...

Page 38: ...er 1 25mm pitch Connector location CN7 Pin Definition Pin Definition 1 P5V_USB_P45 2 USBCON_4N 3 USBCON_4P 4 USBCON_5N 5 USBCON_5P 6 GND Pin Definition Pin Definition 1 M_LVDSDDCCLK 2 M_LVDSDDCDATA 3 VCC_LCD 4 LVDS_CH_TX0_P 5 LVDS_CH_TX3_P 6 LVDS_CH_TX0_N 7 LVDS_CH_TX3_N 8 VCC_LCD 9 GND 10 LVDS_CH_TX1_P 11 LVDS_CH _CLK_P 12 LVDS_CH_TX1_N 13 LVDS_CH _CLK_N 14 GND 15 GND 16 V_INV 12V 17 LVDS_CH_TX2_...

Page 39: ...cklight Connector Connector type 1x7 JST 7 pin header 2 5mm pitch Connector location J8 ATX Power Output Connector Connector type 2x2 Aux power connector Connector location CON1 Pin Definition Pin Definition 1 VCC5 2 V_INV 12V 3 V_INV 12V 4 BKLTCTRL 5 GND 6 GND 7 M_BKLTEN_R Pin Definition Pin Definition 1 GND 2 GND 3 12V 4 12V ...

Page 40: ...5 7 MINICARD1CLKREQ 8 NC 9 GND 10 NC 11 G_MINIPCIECLKN 12 NC 13 G_MINIPCIECLKN 14 NC 15 GND 16 NC 17 NC 18 GND 19 NC 20 MINICARD1DIS 21 GND 22 I_SLOTPLTRST 23 I_PERXN3 24 3VSB_MINI1 25 I_PERXP3 26 GND 27 GND 28 1V5 29 GND 30 SMB_CLK 31 I_PETXN3_C 32 SMB_DATA 33 I_PETXP3_C 34 GND 35 GND 36 MINI1USBN 37 GND 38 MINI1USBP 39 3VSB_MINI1 40 GND 41 3VSB_MINI1 42 NC 43 GND 44 NC 45 NC 46 NC 47 NC 48 1V5 4...

Page 41: ...0 1066 4 Lanes 0 1 Rear Super I O LVDS SATA 2 PCI 32 USB 2 0 DMI 17 17mm 360 balls CK505 CLOCK GEN RS 232 DDI PORT1 DDI PORT0 22 22mm 559 balls DDR3 I C L A D H C P L SATA0 HDD Page 24 SATA Gen2 4 5 internal PCIe x1 3G Mini PCIE Page 29 LAN 82574L HDMI HDMI CON IHDA Audio Codec ALC886 Page 22 HDA_SDI1 80 port Giga LAN Giga LAN RJ45 RJ45 Page 23 Page 23 Page 7 10 Page 18 20 Page 12 Page 21 Page 31 ...

Page 43: ...is configured with the values found in CMOS With easy to use pull down menus you can configure such items as Hard drives diskette drives and peripherals Video display type and display options Password protection from unauthorized use Power management features The settings made in the setup program affect how the computer performs It is important therefore first to try to understand all the setup o...

Page 44: ...rror message Powering on the computer and immediately pressing Del allows you to enter Setup Another way to enter Setup is to power on the computer and wait for the following message during the POST TO ENTER SETUP BEFORE BOOT PRESS CTRL ALT ESC Press the Del key to enter Setup Legends Key Function Right and Left arrows Moves the highlight left or right to select a menu Up and Down arrows Moves the...

Page 45: ...d 32 EBC 354 User Manual Chapter 3 BIOS Setup Submenu When appears on the left of a particular field it indicates that a submenu which contains additional options are available for that field To display the submenu move the highlight to that field and press Enter ...

Page 46: ...and one exit Use arrow keys to select among the items and press Enter to accept or enter the submenu Main The Main menu is the first screen that you will see when you enter the BIOS Setup Utility Intel RC Version Displays the Intel Reference Code version System Date The date format is day month date year Day displays a day from Monday to Sunday Month displays the month from January to December Dat...

Page 47: ...stem Time The time format is hour minute second The time is based on the 24 hour military time clock For example 1 p m is 13 00 00 Hour displays hours from 00 to 23 Minute displays minutes from 00 to 59 Second displays seconds from 00 to 59 Access Level Displays the access level of the current user in the BIOS ...

Page 48: ...rect field values may cause the system to malfunction Launch LAN1 2 PXE OpROM Enables or disables the boot option for legacy network devices connected to LAN1 and LAN2 CPU Configuration This section is used to configure the CPU Hyper threading Disable or Enable hyper threading technology Execute Disable Bit When this field is set to Disabled it will force the XD feature flag to always return to 0 ...

Page 49: ...ID instruction of some newer CPUs will return a value greater than 3 The default is Disabled because this problem does not exist in the Windows series operating systems If you are using an operating system other than Windows this problem may occur To avoid this problem enable this field to limit the return value to 3 or lesser than 3 ...

Page 50: ...0 3 Configure SATA As IDE This option configures the Serial ATA drives as Parallel ATA physical storage device RAID This option allows you to create RAID or Intel Matrix Storage configuration on Serial ATA devices AHCI This option configures the Serial ATA drives to use AHCI Advanced Host Controller Interface AHCI allows the storage driver to enable the advanced Serial ATA features which will incr...

Page 51: ...B devices Legacy USB Support Enable Enables Legacy USB Auto Disables support for Legacy when no USB devices are connected Disable Keeps USB devices available only for EFI applications EHCI Hand Off This is a workaround for OSs that does not support EHCI hand off The EHCI ownership change should be claimed by the EHCI driver Device Reset Timeout Selects the USB mass storage device s start unit comm...

Page 52: ...re the serial ports Super IO Chip Displays the Super I O chip used on the board Serial Port 0 Configuration This section is used to configure serial port 0 Serial Port Enables or disables the serial port Change Settings Selects an optimal setting for the Super IO device Onboard Serial Port Max Baud Rate Select this to change the max baud rate of the serial port ...

Page 53: ...uper IO device Onboard Serial Port 1 Mode Select this to change the serial port mode to RS232 RS422 or RS485 Onboard Serial Port Max Baud Rate Select this to change the max baud rate of the serial port Serial Port 2 Configuration This section is used to configure serial port 2 Serial Port Enables or disables the serial port Change Settings Selects an optimal setting for the Super IO device Onboard...

Page 54: ...gs Selects an optimal setting for the Super IO device Onboard Serial Port Max Baud Rate Select this to change the max baud rate of the serial port H W Monitor This section is used to monitor hardware status such as temperature fan speed and voltages CPU Temperature Detects and displays the current CPU temperature System Temperature Detects and displays the current system temperature CPU FAN Speed ...

Page 56: ...re the system based on the specific features of the chipset The chipset manages bus speeds and access to system memory resources Host Bridge This section is used to configure the host bridge features Intel IGD Configuration Configures the options for Intel IGD function Memory Information Detects and displays information on the memory installed in the system ...

Page 57: ...AC Power Loss Power Off When power returns after an AC power failure the system s power is off You must press the power button to power on the system Power On When power returns after an AC power failure the system will automatically power on Last State When power returns after an AC power failure the system will return to the state where you left off before power failure occurs If the system s po...

Page 58: ...ays OEM logo instead of the POST messages Disabled Displays normal POST messages Fast Boot Enables or disables fast boot technology to speed up the system boot time This is achieved by skipping specific tests during BIOS POST routine there are VGA USB and PS2 to choose from Gate A20 Active Upon Request GA20 can be disabled using BIOS services Always Does not allow disabling GA20 This option is use...

Page 59: ...r s password Save Exit Save Changes and Exit To save the changes and exit the Setup utility select this field then press Enter A dialog box will appear Confirm by selecting Yes You can also press F4 to save and exit Setup Discard Changes and Exit To exit the Setup utility without saving the changes select this field then press Enter You may be prompted to confirm again before exiting You can also ...

Page 60: ...ox will appear Confirm by selecting Yes to discard all changes made and restore the previously saved settings Restore Defaults To restore the BIOS to default settings select this field then press Enter A dialog box will appear Confirm by selecting Yes Save as User Defaults To use the current configurations as user default settings for the BIOS select this field then press Enter A dialog box will a...

Page 61: ...55h out dx al nop nop out dx al Write operations to special address port 2E for entering MB PnP Mode mov al 07h out 2eh al mov al 07h Select logical device for Watch Dog out 2fh al ret SetupWDT ENDP Step1 See SetupWDT procedure Setup Watchdog Timer Environment Step2 See TimeBaseWDT procedure Initial Watchdog Timer Users can select second or minute Step3 See TimeCountWDT procedure Set Watchdog Time...

Page 62: ... 72h out 2eh al mov al 10h Set WDT reset upon PWROK or al 80h Here set 80h for second set 00h for minute out 2fh al ret TimeBaseWDT ENDP TimeCountWDT PROC mov al 73h WDT Time out register out 2eh al mov al 03h Here Set count 3 out 2fh al ret TimeCountWDT ENDP ExitSetup PROC mov al 02h out 2eh al mov al 02h out 2fh al ret ExitSetup ENDP ...

Page 63: ...g Guide Appendix B GPI O Programming Guide EBC 354 GPIO PIN Description PIN Description 1 5V 2 GND 3 GPO24 4 GPI20 5 GPO25 6 GPI21 7 GPO26 8 GPI22 9 GPO27 10 GPI23 IO base address A00h Bit0 GPI20 Bit1 GP I21 Bit2 GP I22 Bit3 GP I23 Bit4 GPO24 Bit5 GPO25 Bit6 GPO26 Bit7 GPO27 1 Read Write GPIO data by I O port A04h ...

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