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Mini-ITX Mainboard Manual

JCOM1A (COM1)/JCOM1B (COM2): Serial port Connectors

The motherboard has Serial Port Connectors for connecting RS-232 Port. Only
JCOM1A supports RS-422/485.

RS-232

RS-
422

RS-
485

Pin

Assignment

Carrier detect (DCD)

TX-

Received data (RXD)

Transmitted data (TXD)

Data terminal ready (DTR)

RX-

Signal ground (GND)

GND

Data set ready (DSR)

Request to send (RTS)

Clear to send (CTS)

9 Ring

J C O M 1 A

(C O M 1 )

J C O M 1B

(C O M 2 )

10 NC

JSEL1/JSEL2:RS-232/422/485 Switch Headers

The headers determine that JCOM1A belongs to RS-232 (Default), 422, or 485.

JSEL1

RS-232 RS-422

RS-485

1-3 3-5 3-5

2-4 4-6 4-6

7-9 9-11 9-11

8-10 10-12 10-12

JSEL2

1-2 RS-232

3-4 RS-422

5-6 RS-485

JSEL2

JSEL1

Note:

Please notice

Pin 9

of JCOM1A and of JCOM1B. JCOM1A: +5V;

JCOM1B: Ring indicator.

Содержание BI94GS-IA

Страница 1: ...nce will not occur in a particular installation The vendor makes no representations or warranties with respect to the contents here and specially disclaims any implied warranties of merchantability or fitness for any purpose Further the vendor reserves the right to revise this publication and to make changes to the contents here without obligation to notify any party beforehand Duplication of this...

Страница 2: ...on 7 Chapter 2 Installation 7 2 1 CPU 8 2 2 Fan Header 8 2 3 System Memory 9 2 4 Power Supply 10 2 5 Onboard Slot Connector Header Jumper 12 Chapter 3 BIOS Setup 23 3 1 Main Menu 25 3 2 Advanced Menu 29 3 3 PCI PnP Menu 38 3 4 Boot Menu 41 3 5 Chipset Menu 44 3 6 Exit Menu 50 Chapter 4 Useful Help 53 4 1 Driver Installation Note 53 4 2 AMI BIOS Beep Code 54 4 3 Troubleshooting 55 ...

Страница 3: ...p to remove the static charge Avoid touching the components on mainboard or the rear side of the board unless necessary Hold the board on the edge do not try to bend or flex the board Do not leave any unfastened small parts inside the case after installation Loose parts will cause short circuits which may damage the equipment Keep the system from dangerous area such as heat source humid air and wa...

Страница 4: ...B 512MB 1GB Max Memory Capicity 1GB Registered DIMM or ECC DIMM is not supported IDE ICH7M Ultra DMA 33 66 100 Bus Master Mode Supports PIO Mode 0 4 Supports 2 IDE devices SATA ICH7M SATAII Version 1 0a specification compliant Data transfer rates up to 3 0 Gbit s LAN Realtek RTL 8111DL x 2 10 100 1000 Mb s auto negotiation Half Full duplex capability Sound Codec Realtek ALC662 5 1 channels audio o...

Страница 5: ...er Connector for SATA x1 Power Connector 20pin x1 Back Panel I O PS 2 Keyboard x1 Serial Port x2 VGA Port x1 DVI Port x1 LAN port x2 USB Port x6 Audio Jack x3 KB Mouse are available through Y cable 1 x RS 232 1 x RS 232 422 485 by jumper Board Size 170 mm W x 170 mm L Mini ITX OS Support Windows XP XPE Linux Biostar reserves the right to add or remove support for any OS with or without notice 1 4 ...

Страница 6: ... JRJ45USB3 JC O M 1 A B JAUDIO1 LV D S C O N N 1 JLV2 JLV1 JBL1 JBL2 JC1 JSEL2 JSEL1 JAUDIOF1 JDIO1 L P C 1 JPRNT1 PCI1 JBAT1 JCMOS1 JAT1 BIO S JPANEL1 JDOM1 JHDD1 SATA2 SATA1 JUSB4 IDE1 JATXPWR1 JSFAN1 DIMMA1 Intel Atom N270 CPU1 Intel 945GSE ICH7M JDSP1 Note represents the 1 st pin ...

Страница 7: ...BI94GS IA 7 1 6 MAINBOARD DIMENSION ...

Страница 8: ...cooling fans built in the system The fan cable and connector may be different due to the fan manufacturer JSFAN1 System Fan Header Pin Assignment 1 Ground 2 12V 3 FAN RPM rate sense 1 3 Note The System Fan Header supports 3 pin head connector When connecting with wires onto connectors please note that the red wire is the positive and should be connected to pin 2 and the black wire is Ground and sh...

Страница 9: ...the slot such that the notch on the DIMM matches the break on the Slot 3 Insert the DIMM firmly into the slot until the retaining chip snap back in place and the DIMM is properly seated Memory Capacity DIMM Socket Location DDR2 Module Total Memory Size DIMMA1 256MB 512MB 1GB Max is 1GB ...

Страница 10: ... connector on the power supply 1 10 11 20 Pin Assignment Pin Assignment 1 3 3V 11 3 3V 2 3 3V 12 12V 3 GND 13 GND 4 5V 14 Power Supply On 5 GND 15 GND 6 5V 16 GND 7 GND 17 GND 8 Power Good 18 NC 9 5V Standby 19 5V 10 12V 20 5V JDOM1 DOM Card Power Connector This connector provides power connection of a DOM card Pin Assignment 1 5V 2 GND 1 ...

Страница 11: ...BI94GS IA 11 JHDD1 SATA Power Connector This connector provides power connection of SATA devices Pin Assignment 1 12V 2 GND 3 3V 4 5V 1 4 ...

Страница 12: ...heral Component Interconnect and it is a bus standard for expansion cards This PCI slot is designated as 32 bits PCI1 IDE1 ATA Device Connector The mainboard has an integrated IDE Controller that provides PIO Mode 0 4 Bus Master and Ultra DMA 33 66 100 functionality It has one IDE connector which can connect a master and a slave drive so you can connect up to two ATA devices 1 2 39 40 ...

Страница 13: ...t 1 GND 2 TX 3 TX 4 GND 5 RX 6 RX 7 GND 7 4 1 SAT A2 SAT A1 JPANEL1 Front Panel Header This 10 pin header includes Power on Reset HDD LED and Power LED connection It allows user to connect the system case s front panel switch functions 9 1 2 10 Pin Assignment Function Pin Assignment Function 1 Key N A 2 Power LED 3 HD LED 4 Power LED 5 HD LED HDD LED 6 Power LED Power LED 7 Reset GND 8 Power 9 Res...

Страница 14: ...ready DTR RX NC 5 Signal ground GND GND GND 6 Data set ready DSR NC NC 7 Request to send RTS NC NC 8 Clear to send CTS NC NC 9 Ring NC NC JC O M 1 A C O M 1 JC O M 1B C O M 2 10 NC NC NC JSEL1 JSEL2 RS 232 422 485 Switch Headers The headers determine that JCOM1A belongs to RS 232 Default 422 or 485 JSEL1 RS 232 RS 422 RS 485 1 3 3 5 3 5 2 4 4 6 4 6 7 9 9 11 9 11 8 10 10 12 10 12 JSEL2 1 2 RS 232 3...

Страница 15: ... 2 Ground 3 Mic Right in 4 Present Sense 5 Right line out 6 Jack Sense 7 Front Sense 8 Key 9 Left line out 10 Jack Sense 1 2 9 10 JUSB4 USB 2 0 Header The mainboard provides 1 front USB pin header allowing up to 2 additional USB 2 0 ports up to maximum throughput of 480 Mbps Connect the USB cable into the pin header for using high speed USB interface peripherals Pin Assignment Pin Assignment 10 NC...

Страница 16: ...1 Remove AC power line 2 Set the jumper to Pin 2 3 close 3 Wait for five seconds 4 Set the jumper to Pin 1 2 close 5 Power on the AC 6 Reset your desired password or clear the CMOS data JDIO1 Digital I O Connector This connector offers 4 pair of digital I O functions and address is set in BIOS The default address is A21H Output bit0 3 A22H Input bit0 3 Pin Assignment 1 5V 2 Digital In 30 3 Digital...

Страница 17: ... 6 3 Data 0 16 Ground 4 Error 17 Data 7 5 Data 1 18 Ground 6 Init 19 ACK 7 Data 2 20 Ground 8 Scltin 21 Busy 9 Data 3 22 Ground 10 Ground 23 PE 11 Data 4 24 Ground 12 Ground 25 SCLT 13 Data 5 26 Key JKBMS1 Keyboard Mouse Connector The mainboard provides a PS2 pin header to attach a PS2 keyboard mouse Pin Assignment 6 VCC 5 GND 4 KB_DATA 3 KB_CLK 2 MS_DATA 1 MS_CLK 1 6 ...

Страница 18: ...7 SERIRQ 8 LFRAME 9 PME 10 LAD0 11 3 3V 12 LPCRST 13 GND 14 5V 15 12V 16 GND 17 GND 18 12V 19 5V 20 12V JAT1 Hardware Power Loss Recovery Switch This header specifies how the system should do after a power fail Setting Disabled will leave the system in power off status after the power recovers Setting Enabled will power on the system immediately when the power returns 1 3 Pin 1 2 Close Enabled 1 3...

Страница 19: ...d to use the matching JOY DAY INDUSTRIAL A1250WV S 8P connector Pin Assignment 1 5V 12V DC 2 5V 12V DC 3 NC 4 NC 5 Backlight On 6 Brightness Adjust 7 GND 8 GND JDSP1 VGA DVI Compulsory Signal Output Header This connector can force VGA or DVI signal to be sent Pin 1 2 Close VGA Pin 2 3 Close DVI default Pin Assignment 1 LOAD_EN_POWER 2 5V 3 DVI_HPLUG_POWER ...

Страница 20: ... 5 GND 6 GND 7 LVDS2_TX1 Differential signal 8 GND 9 LVDS2_TX1 Differential signal 10 LVDS1_TX0 Differential signal 11 GND 12 LVDS1_TX0 Differential signal 13 LVDS2_TX2 Differential signal 14 GND 15 LVDS2_TX2 Differential signal 16 LVDS1_TX1 Differential signal 17 GND 18 LVDS1_TX1 Differential signal 19 LVDS2_CLK Differential signal 20 GND 21 LVDS2_CLK Differential signal 22 LVDS1_TX2 Differential...

Страница 21: ... LCD Backlight Inverter Power Select Header This header is for selecting LCD Backlight Inverter Power 1 3 Pin 1 2 Close Inverter Power 5V 1 3 1 3 Pin 2 3 Close Inverter Power 12V Default JBL1 LCD Backlight Power ON OFF Header This header allows you to control the LCD Backlight Power ON OFF 1 Header Close Backlight Power OFF 1 1 Header Open Backlight Power ON ...

Страница 22: ...acklight brightness 2 4 1 3 Short Pin 1 2 Increase Brightness 1 2 3 4 2 4 1 3 Short Pin 3 4 Decrease Brightness How to Setup Jumpers The illustration shows how to set up jumpers When the jumper cap is placed on pins the jumper is close if not that means the jumper is open Pin opened Pin closed Pin1 2 closed ...

Страница 23: ...nd disk drives BIOS activates at the first stage of the booting process loading and executing the operating system Some additional features such as virus and password protection or chipset fine tuning options are also included in BIOS The rest of this manual will to guide you through the options and settings in BIOS Setup Plug and Play Support This AMI BIOS supports the Plug and Play Version 1 0A ...

Страница 24: ...nd you can use these keys to select item and change the settings Notice z The default BIOS settings apply for most conditions to ensure optimum performance of the motherboard If the system becomes unstable after changing any settings please load the default settings to ensure system s compatibility and stability Use Load Setup Default under the Exit Menu z For better system performance the BIOS fi...

Страница 25: ...nd Exit Exit Tab F1 F10 ESC Use ENTER TAB or SHIFT TAB to select a field Use or to configure system Time System Overview AMI BIOS System Memory 00 00 System Date Tue 01 01 2008 IDE Configuration Version 01 01 01 Build Date 01 01 08 Size System Time 00 Exit AMI BIOS Shows system information including BIOS version built date etc System Memory Shows system memory size VGA shard memory will be exclude...

Страница 26: ...C Copyright 1985 200x American Megatrends Inc Select Screen Select Item Go to Sub Screen General Help Save and Exit Exit Enter F1 F10 ESC IDE Confuguration Primary IDE Master Primary IDE Slave SATA Port1 SATA Port2 Hard Disk Write Protect Disabled IDE Detect Time Out Sec 35 ATA PI 80Pin Cable Detection Host Device Configure SATA as IDE Options IDE RAID AHCI Configure SATA as This item allows you t...

Страница 27: ...Data Transfer Enabled Device Type Auto The BIOS detects the information and values of respective devices and these information and values are shown below to the name of the sub menu Type Select the type of the SATA drive Options Auto Default CD DVD ARMD Not Installed LBA Large Mode Enable or disable the LBA mode Options Auto Default Disabled Block Multi Sector Transfer Enable or disable multi sect...

Страница 28: ...t Disabled Hard Disk Write Protect Disable or enable device write protection This will be effective only if the device is accessed through BIOS Options Disabled Default Enabled IDE Detect Time Out Sec Select the time out value for detecting IDE SATA devices Options 35 Default 30 25 20 15 10 5 0 ATA PI 80Pin Cable Detection Select the mechanism for detecting 80Pin ATA PI Cable Options Host Device D...

Страница 29: ...se system to malfunction USB Configuration SuperIO Configuration Hardware Health Configuration ACPI Configuration CPU Configuration Exit CPU Configuration This item shows the CPU information that the BIOS automatically detects BIOS SETUP UTILITY Advanced vxx xx C Copyright 1985 200x American Megatrends Inc Select Screen Select Item Change Option General Help Save and Exit Exit F1 F10 ESC Disabled ...

Страница 30: ...s Enabled Default Disabled Hyper Threading Technology Enabled for Windows XP and Linux OS optimized for Hyper Threading Technology and disabled for other OS OS not optimized for Hyper Threading Technology Options Enabled Default Disabled Intel R SpeedStep tm Tech This item allows you to enable SpeedStep technology for better power saving SpeedStep is a technology built into some Intel processors t...

Страница 31: ...ddress Select an address and corresponding interrupt for Serial Port 1 Options 3F8 IRQ4 Default 3E8 IRQ4 2E8 IRQ3 Disabled Serial Port2 Address Select an address and corresponding interrupt for Serial Port 2 Options 2F8 IRQ3 Default 3E8 IRQ4 2E8 IRQ3 Disabled Parallel Port Address This item allows you to determine access onboard parallel port controller with which I O Address Options 378 Default 2...

Страница 32: ...is BIOS setting item will be hidden 2 If the Hardware Power Loss Recovery header setting is at Disabled ATX mode this BIOS setting item will show three options Power Off Default Leaving the system in power off status after power recovers Power ON Powering on the system immediately when power returns Last State 1 Leaving the system in power off when AC switch if the system shuts down at DC off stat...

Страница 33: ...rends Inc Select Screen Select Item Change Option General Help Save and Exit Exit F1 F10 ESC Enables Hardware Health Monitoring Device H W Health Function If with a monitoring system PC will show PC health status during POST stage Options Enabled Default Disabled ACPI Configuration BIOS SETUP UTILITY Advanced vxx xx C Copyright 1985 200x American Megatrends Inc Select Screen Select Item Change Opt...

Страница 34: ...ions ACPI v1 0 Default ACPI v2 0 ACPI v3 0 ACPI APIC support This item is used to enable or disable the motherboard s APIC Advanced Programmable Interrupt Controller The APIC provides multiprocessor support more IRQs and faster interrupt handling Options Enabled Default Disabled AMI OEMB table Set this value to allow the ACPI BIOS to add a pointer to an OEMB table in the Root System Description Ta...

Страница 35: ...Options Disabled Default Enabled APIC ACPI SCI IRQ support This item is used to set APIC ACPI SCI by IRQ Options Disabled Default Enabled Resume On PME This item allows you to disable or enable PME to generate a wake event Options Disabled Default Enabled Resume On RTC Alarm When Enabled you can set the date and time at which the RTC real time clock alarm awakens the system from Suspend mode Optio...

Страница 36: ... HiSpeed BIOS EHCI Hand Off Enabled USB Mass Storage Device Configuration Legacy USB Support This item determines if the BIOS should provide legacy support for USB devices like the keyboard mouse and USB drive This feature is useful for using USB devices with operating systems that do not natively support USB e g Microsoft MS DOS or Windows NT Options Enabled Default Disabled Auto USB 2 0 Controll...

Страница 37: ...the USB mass storage device after start unit command USB Mass Storage Device Configuration USB Mass Storage Reset Delay 20 Sec Emulation Type Auto Device USB Mass Storage Reset Delay This item allows you to set the reset delay for USB mass storage device Options 20 Sec Default 10 Sec 30 Sec 40 Sec Emulation Type This item allows you to select the emulation type of the USB mass storage device Optio...

Страница 38: ...1 F10 ESC Clear NVRAM during System Boot Advanced PCI PnP Settings WARNING Setting wrong values in below sections may cause system to malfunction Plug Play O S No PCI Latency Timer 64 Allocate IRQ to PCI VGA Yes Palette Snooping Disabled PCI IDE BusMaster Enabled OffBoard PCI ISA IDE Card Auto PCI Resource Clear NVRAM No Exit Clear NVRAM This item allows you to clear the data in the NVRAM CMOS by ...

Страница 39: ...d Options Yes Default No Palette Snooping Some old graphic controllers need to snoop on the VGA palette and then map it to their display as a way to provide boot information and VGA compatibility This item allows such snooping to take place Options Disabled Default Enabled PCI IDE BusMaster This item is a toggle for the built in driver that allows the onboard IDE controller to perform DMA Direct M...

Страница 40: ...hannel 3 Available DMA Channel 5 Available DMA Channel 6 Available DMA Channel 7 Available Reserved Memory Size Disabled IRQ3 4 5 7 9 10 11 14 15 These items will allow you to assign each system interrupt a type depending on the type of device using the interrupt The option Available means the IRQ is going to assign automatically Options Available Default Reserved DMA Channel 0 1 3 5 6 7 These ite...

Страница 41: ...Enabled Interrupt 19 Capture Disabled Boot Device Priority Exit Boot Device Priority Items in this sub menu specify the boot device priority sequence from the available devices The number of device items that appears on the screen depends on the number of devices installed in the system Hard Disk Drives The BIOS will attempt to arrange the hard disk boot sequence automatically You can also change ...

Страница 42: ...een LOGO Disaply This item allows you to enable disable Full Screen LOGO Show function Options Disabled Default Enabled AddOn ROM Display Mode This item sets the display mode for option ROM Options Force BIOS Default Keep Current Bootup Num Lock Selects the NumLock State after the system switched on Options On Default Off PS 2 Mouse Support This BIOS feature determines if the BIOS should reserve I...

Страница 43: ... Hit DEL to enter Setup message during memory initialization Options Enabled Default Disabled Interrupt 19 Capture Interrupt 19 is the software interrupt that handles the boot disk function When set to Enabled this item allows the option ROMs to trap interrupt 19 Options Disabled Default Enabled ...

Страница 44: ...ems of this menu may cause system to malfunction BIOS SETUP UTILITY Main Advanced PCIPnP Boot Chipset vxx xx C Copyright 1985 200x American Megatrends Inc Select Screen Select Item Go to Sub Screen General Help Save and Exit Exit Enter F1 F10 ESC Advanced Chipset Settings WARNING Setting wrong values in below sections may cause system to malfunction South Bridge Configuration Onboard LAN1 Enabled ...

Страница 45: ... DRAM Clocks DRAM RAS Activate to Precha 15 DRAM Clocks Memory Hole Disabled Initiate Graphic Adapter PCI IGD Internal Graphics Mode Select Enabled 8MB Video Function Configuration DRAM Frequency Auto Options Auto 400 Mhz 533 Mhz DRAM Frequency This item allows you to set the frequency of DRAM Options Auto Default 400MHz 533MHz Configure DRAM timing by SPD This item allows you to determine DRAM ti...

Страница 46: ...cannot be cached Check the user information of peripherals that need to use this area of system memory for the memory requirements Options Disabled Default 15MB 16MB Initiate Graphic Adapter This item allows you to enable or disable VGA controller Options PCI IGD Default IGD Internal Graphics Mode Select This item will be different as your memory modules When the memory size is decided this frame ...

Страница 47: ...y Technology This is an enhancement of the unified memory architecture UMA concept DVMT will set the optimum amount of memory to be allocated for a balance between graphics and system performance DVMT dynamically respond to system requirements and applications demands by allocating the proper amount of display texturing and buffer memory after the operating system has booted Options 128MB Default ...

Страница 48: ...ed USB 2 0 Controller This entry is to enabled disabled EHCI controller only This BIOS itself may may not have high speed USB support If the BIOS has high speed USB support the support will be automatically turned on when high speed devices were attached Options Enabled Default Disabled Audio Controller This item allows you to control the Audio support Options Auto Default Disabled SMBUS Controlle...

Страница 49: ...ard LAN 1 2 This item allows you to enable or disable the Onboard LAN 1 2 Options Enabled Default Disabled Onboard LAN ROM 1 2 This item allows you to select the Onboard LAN 1 2 Boot ROM Options Disabled Default Enabled ...

Страница 50: ...for this operation Exit Options Security Settings Save Changes and Exit Discard Changes and Exit Discard Changes Load Optimal Defaults Security Exit Save Changes and Exit Save all configuration changes to CMOS RAM and exit setup Discard Changes and Exit Abandon all changes made during the current session and exit setup Discard Changes Abandon all changes made during the current session and restore...

Страница 51: ... Protection Disabled Exit Change Supervisor Password Setting the supervisor password will prohibit everyone except the supervisor from making changes using the CMOS Setup Utility You will be prompted with to enter a password User Access Level This item allows supervisor to set the user level Options Full Access Default No Access View Only Limited Change User Password If the Supervisor Password is ...

Страница 52: ...ys Boot Sector Virus Protection This option allows you to choose the VIRUS Warning feature that is used to protect the IDE Hard Disk boot sector If this function is enabled and an attempt is made to write to the boot sector BIOS will display a warning message on the screen and sound an alarm beep Options Disabled Default Enabled ...

Страница 53: ... To install the driver please click on the Driver icon The setup guide will list the compatible driver for your mainboard and operating system Click on each device driver to launch the installation program B Software Installation To install the software please click on the Software icon The setup guide will list the software available for your system click on each software title to launch the inst...

Страница 54: ...em video adapter Troubleshooting POST BIOS Beep Codes Number of Beeps Troubleshooting Action 1 3 Reseat the memory or replace with known good modules 6 7 Fatal error indicating a serious problem with the system Consult your system manufacturer Before declaring the motherboard beyond all hope eliminate the possibility of interference by a malfunctioning add in card Remove all expansion cards except...

Страница 55: ...controller board Make sure both ends are securely plugged in check the drive type in the standard CMOS setup 2 Backing up the hard drive is extremely important All hard disks are capable of breaking down at any time System only boots from an optical drive Hard disks can be read applications can be used but system fails to boot from a hard disk 1 Back up data and applications files 2 Reformat the h...

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