CA61 Rev.
Copyright This publication contains information that is protected by copyright. No part of it may be reproduced in any form or by any means or used to make any transformation/adaptation without the prior written permission from the copyright holders. This publication is provided for informational purposes only.
FCC and DOC Statement on Class B This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation.
Table of Contents Chapter 1 - Introduction 1.1 Features and Specifications ................................................................... 1.2 Package Checklist ........................................................................................ 6 10 Chapter 2 - Hardware Installation 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 System Board Layout ............................................................................... System Memory ......................................................................
Chapter 4 - Supported Softwares 4.1 4.2 4.3 4.4 Desktop Management Interface ......................................................... Hardware Doctor Utility .......................................................................... VIA ® Service Pack ....................................................................................... Drivers and Utilities Installation Notes ........................................... 54 57 59 60 Appendix A - System Error Messages A.1 POST Beep.......................
1 Introduction Chapter 1 - Introduction 1.1 Features and Specifications 1.1.1 Features Chipset VIA 82C693A and 82C596B (PC-133) Processor The system board is equipped with Socket 370 for installing an Intel CeleronTM FCPGA/PPGA, Pentium® III FCPGA or VIA Cyrix® III processor. The system board is also equipped with a switching voltage regulator that supports 1.30V to 2.05V core voltage for various processors.
Introduction 1 Note: If you are using more than one DIMM, make sure you insert the same type of DIMMs into the DIMM sockets. Using different types (VCM and PC SDRAM) of DIMMs may cause problems. Expansion Slots The system board is equipped with 1 dedicated AGP slot, 3 dedicated PCI slots, 2 dedicated 16-bit ISA slot and 1 shared PCI/ ISA slot. All PCI and ISA slots are bus masters. Desktop Management Interface (DMI) The system board comes with a DMI 2.0 built into the BIOS.
1 Introduction PCI Bus Master IDE Controller Two PCI IDE interfaces support up to four IDE devices Supports ATA/33 or ATA/66 hard drives PIO Mode 3 and Mode 4 Enhanced IDE (data transfer rate up to 16.6MB/sec.) Bus mastering reduces CPU utilization during disk transfer ATAPI CD-ROM, LS-120 and ZIP supported IrDA Interface The system board is equipped with an IrDA connector for wireless connectivity between your computer and peripheral devices.
Introduction 1 1.1.3 Intelligence Automatic CPU/Chassis Fan Off The CPU and chassis fans will automatically turn off once the system enters the Suspend mode. Dual Function Power Button Depending on the setting in the BIOS setup, this switch will allow the system to enter the Soft-Off or Suspend mode. External Modem Ring-on The Modem Ring-on feature allows the system that is in the Suspend mode or Soft Power Off mode to wake-up/power-on to respond to incoming calls.
1 Introduction Important: The power button will not function once a keyboard password has been set in the KB Power On Password field of the Integrated Peripherals setup. You must type the correct password to power-on the system. The 5VSB power source of your power supply must support ≥720mA (minimum). ACPI The system board is designed to meet the ACPI (Advanced Configuration and Power Interface) specification.
Hardware Installation 2 Chapter 2 - Hardware Installation 2.
2 Hardware Installation Warning: Electrostatic discharge (ESD) can damage your system board, processor, disk drives, add-in boards, and other components. Perform the upgrade instruction procedures described at an ESD workstation only. If such a station is not available, you can provide some ESD protection by wearing an antistatic wrist strap and attaching it to a metal part of the system chassis.
Hardware Installation 2 2.2.1 Installing the DIM Module A DIM module simply snaps into a DIMM socket on the system board. Pin 1 of the DIM module must correspond with Pin 1 of the socket. Notch Tab Pin 1 Tab Key 1. Pull the tabs which are at the ends of the socket to the side. 2. Position the DIMM above the socket with the notches in the module aligned with the keys on the socket. 3. Seat the module vertically into the socket. Make sure it is completely seated.
2 Hardware Installation 2.3 Frequency Ratio Settings for Processors The following table shows frequency ratios and their corresponding DIP switch setting. There are 4 switches on SW1. The black rectangle in the diagram denotes the par t that is protruding, the adjustable switch. Make sure SW1 is set correctly before applying power, otherwise you will not be able to power-on the system. In the example above: Switch Switch Switch Switch 1: Off 2: On 3: Off 4: On Processors Freq.
Hardware Installation 2 Important: The frequency ratio of some processors shown in the table may have been locked by the manufacturer. If you are using this kind of processor, setting an extended ratio for the processor (using SW1) will have no effect. The system will instead use its factory default ratio. The processors supported by the system board support VID (Voltage Identification).
2 Hardware Installation 2.5 Jumper Settings for Selecting the CPUs Front Side Bus CPUs Front Side Bus Select - Jumpers JP2 and JP4 The default setting of jumpers JP2 and JP4 is Auto - the system will automatically run according to the FSB (66/100/133MHz) of the processor.
Hardware Installation 2 2.6 Jumper Settings for Clearing CMOS Data Clear CMOS Data - Jumper JP3 If, for some reason, the CMOS data becomes corrupted or you forgot the super visor/user/keyboard password, the system can be reconfigured with the default values stored in the ROM BIOS. To load the default values, power off your system and unplug the power cord. Set JP3 pins 2 and 3 to On. Wait for a few seconds and set JP3 back to its default setting, pins 1 and 2 On.
2 Hardware Installation 2.7 Jumper Settings for Wake-On-Keyboard/ Wake-On-Mouse Wake-On-Keyboard/Wake-On-Mouse - Jumper JP1 The system board supports the Wake-OnKeyboard/Wake-On-Mouse function. This function allows you to use the keyboard or PS/2 mouse to power-on the system. By default, JP1 is disabled. To use this function, set JP1 to 2-3 On. Keyboard/Mouse Power On in the Integrated Peripherals setup of the Award BIOS must be set accordingly. Refer to chapter 3 for details. Warning: 1.
Hardware Installation 2 2.8 Ports and Connectors 2.8.1 Serial Ports The system board is equipped with onboard serial por ts (COM 1: J6 and COM 2: J8) - both in Teal/Turquoise color located at the ATX double deck ports of the board. These por ts are RS-232C asynchronous communication por ts with 16C550Acompatible UARTs that can be used with modems, serial printer s, remote display terminals, and other serial devices.
2 Hardware Installation 2.8.3 Parallel Ports The system board has a standard printer port (J7 - Burgundy) located at the ATX double deck ports of the board for interfacing your PC to a parallel printer. It supports SPP, ECP and EPP modes. You can set the ports mode in the Integrated Peripherals submenu of the BIOS. Setting Function SPP (Standard Parallel Port) Allows normal speed operation but in one direction only.
Hardware Installation 2 Connecting the Floppy Disk Cable 1. Install the 34-pin header connector into the shrouded floppy disk header (J4) on the system board. The colored edge of the ribbon should be aligned with pin 1 of J4. 2. Install the other 34-pin header connector(s) into the disk drive(s). Align the colored edge of the daisy chained ribbon cable with pin 1 of the drive edge connector(s). The end-most connector should be attached to the drive you want to designate as Drive A. 2.8.
2 Hardware Installation 2. Install the other 40-pin header connector(s) into the device with the colored edge of the ribbon cable aligned with pin 1 of the drive edge connector(s). Note: Refer to your disk drive users manual for information about selecting proper drive switch settings. Adding a Second IDE Hard Drive When using two IDE drives, one must be set as the master and the other as the slave.
Hardware Installation 2 2.8.6 USB Ports The system board is equipped with two USB ports (J3 - Black) located at the ATX double deck por ts of the board. USB allows data exchange between your computer and a wide range of simultaneously accessible external Plug and Play peripherals. You must have the proper drivers installed in your operating system to use the USB por ts. Refer to your operating systems manual or documentation. 2.8.
2 Hardware Installation Pin Function 1 VCC 2 N. C . 3 IRRX 4 Ground 5 IRTX 2.8.8 CPU Fan Connector The processor must be kept cool by using a fan with heatsink. Connect the CPU fan to the 3-pin fan connector at location J5 on the system board.
Hardware Installation 2 2.8.9 Chassis Fan Connector The system board is equipped with a chassis fan connector. If you are installing a fan in the system unit, connect the fans connector to location J2 on the system board. The fan will provide adequate airflow throughout the chassis to prevent overheating the processor. Pin Function 1 On/Off 2 +12V 3 Sense 2.8.
2 Hardware Installation 2.8.11 Wake-On-LAN Connector The system board supports the Wake-On-LAN function. This function will allow the network to remotely power-on a Soft Power Down (Soft-Off) PC. However, if your system is in the Suspend mode, you can power-on the system only through an IRQ or DMA interrupt. To use the Wake-On-LAN function, you must enable the Resume on LAN field in the Power Management Setup of the Award BIOS. Your LAN card package should include a cable.
Hardware Installation 2 2.8.12 Power Connector PS1 The pin assignment of the ATX power connector is shown below. Pin Function Pin Function 1 3.3V 11 3.3V 2 3.3V 12 -12V 3 Ground 13 Ground 4 +5V 14 PS-ON 5 Ground 15 Ground 6 +5V 16 Ground 7 Ground 17 Ground 8 PW-OK 18 -5V 9 5VSB 19 +5V 10 +12V 20 +5V Important: The system board requires a minimum of 3.3V/6A electric current.
2 Hardware Installation 2.8.13 PCI Standby Power LED PCI Standby Power LED This LED will light when the system is in the power-on, Soft-Off or Suspend mode. 3.3VSB Standby for PCI (jumper JP5) The default setting of jumper JP5 is On. It provides 3.3VSB Standby power to the PCI slots. If you are using a PCI modem card that does not comply to the PCI 2.2 specification, please set this jumper to Off. The PCI Standby Power LEDs light will subsequently turn off.
Hardware Installation 2 2.8.14 Front Panel LEDs and Switches HD-LED: Primary/Secondary IDE LED This LED will light when the hard drive is being accessed. G-LED: Green LED This LED will light when the system is in the Suspend mode. ATX-SW: ATX Power Switch Depending on the setting in the BIOS setup, this switch is a dual function power button that will allow your system to enter the SoftOff or Suspend mode. Refer to Soft-Off By PWR-BTTN in the Power Management Setup (Chapter 3).
2 Hardware Installation KEYLOCK: Power/Standby LED and Keylock Connector Use pins 21-23 to connect to the Power/Standby LED. This LED will light when the systems power is on and blinks when the system enters the Suspend mode. Use pins 24 to 25 to connect to the keyboard lock (located on the front panel of the system chassis) for locking the keyboard.
Award BIOS Setup Utility 3 Chapter 3 - Award BIOS Setup Utility 3.1 The Basic Input/Output System The Basic Input/Output System (BIOS) is a program that takes care of the basic level of communication between the processor and peripherals. In addition, the BIOS also contain codes for various advanced features found in this system board. This chapter explains the Setup Utility for the Award BIOS. After you power up your system, the BIOS message appear s on your screen and the memor y count begins.
3 Award BIOS Setup Utility ROM PCI/ISA BIOS STANDARD CMOS SETUP AWARD SOFTWARE, INC. Date (mm:dd:yy) : Fri, Apr 21 2000 Time (hh:mm:ss) : 13: 27: 50 HARD DISKS Primary Master Primary Slave Secondary Master Secondary Slave : : : : TYPE SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE Auto 0 0 0 0 0 0 Auto Auto 0 0 0 0 0 0 Auto Auto 0 0 0 0 0 0 Auto Auto 0 0 0 0 0 0 Auto Drive A : 1.44M, 3.5 in.
Award BIOS Setup Utility 3 Drive A and Drive B These categories identify the types of floppy disk drives installed. None No floppy drive is installed 360K, 5.25 in. 5-1/4 in. standard drive; 360KB capacity 1.2M, 5.25 in. 5-1/4 in. AT-type high-density drive; 1.2MB capacity 720K, 3.5 in. 3-1/2 in. double-sided drive; 720KB capacity 1.44M, 3.5 in. 3-1/2 in. double-sided drive; 1.44MB capacity 2.88M, 3.5 in. 3-1/2 in. double-sided drive; 2.
3 Award BIOS Setup Utility 3.1.2 BIOS Features Setup The BIOS Features Setup allows you to configure your system for basic operation. Some entries are defaults required by the system board, while others, if enabled, will improve the performance of your system or let you set some features according to your preference. ROM PCI/ISA BIOS BIOS FEATURES SETUP AWARD SOFTWARE, INC.
Award BIOS Setup Utility 3 CPU L1 Cache and CPU L2 Cache These categories speed up the memory access. The default value is enabled. Enable the External Cache for better performance. CPU L2 Cache ECC Checking By default, ECC is enabled to check the Level 2 cache. If you are not using this function, set this field to Disabled. Quick Power On Self Test This categor y speeds up Power On Self Test (POST) after you power on your system. When Enabled, the BIOS will shorten or skip some check items during POST.
3 Award BIOS Setup Utility Boot Up NumLock Status This allows you to determine the default state of the numeric keypad. By default, the system boots up with NumLock on wherein the function of the numeric keypad is the number keys. When set to Off, the function of the numeric keypad is the arrow keys. DRAM ECC Checking If you are using x72 (72-bit) PC SDRAM DIMMs, which are DIMMs that support the ECC (Error Checking and Correction) function, set this field to Enabled.
Award BIOS Setup Utility 3 PCI/VGA Palette Snoop It determines whether the MPEG ISA/VESA VGA Cards can work with PCI/VGA or not. The default value is Disabled. Enabled PCI/VGA working with MPEG ISA/VESA VGA cards. Disabled PCI/VGA not wor king with MPEG ISA/VESA VGA cards. OS Select for DRAM > 64MB This item allows you to access the memor y that is over 64MB in OS/2. The options are: Non-OS/2 and OS/2. HDD S.M.A.R.T.
3 Award BIOS Setup Utility 3.1.3 Chipset Features Setup ROM PCI/ISA BIOS CHIPSET FEATURES SETUP AWARD SOFTWARE, INC.
Award BIOS Setup Utility 3 Method 1: Clear the CMOS data by setting JP3 pins 2 and 3 to On. All fields in the BIOS Setup will automatically be set to their default settings. Method 2: Press the key and power button simultaneously, then release the power button first. Keep-on pressing the key until the power-on screen appears. This will allow the system to boot according to the FSB of the processor. Now press the key to enter the Award BIOS setup utility.
3 Award BIOS Setup Utility CPU(V) This field shows the voltage of the processor. +1.5V, +3.3V, +5V, +12V, -12V and -5V These fields show the output voltage of the power supply. 3.1.4 Power Management Setup The Power Management Setup allows you to configure your system to most effectively save energy. If you like to use the soft power down feature of Windows 95/98/2000, you must enable the Power Management below. Select Min. Power, Max. Power or User Defined.
Award BIOS Setup Utility 3 Disable No power management. Disables the Standby and Suspend modes. Min. Power Saving Minimum power management. Standby Mode = 1 hr., and Suspend Mode = 1 hr. Max. Power Saving Maximum power management. Standby Mode = 10 sec., and Suspend Mode = 10 sec. User Defined Allows you to set each mode individually. When enabled, each option ranges from 10 sec. to 1 hr.
3 Award BIOS Setup Utility Suspend Mode This is user configurable only when the Power Management categor y is set to User Defined. When enabled and after the set time of system inactivity, the CPU and onboard peripherals will be shut off. HDD Power Down This is user configurable only when the Power Management categor y is set to User Defined. When enabled and after the set time of system inactivity, the hard disk drive will be powered down while all other devices remain active.
Award BIOS Setup Utility 3 when AC power failure occur s, the system will power-on when power returns. Resume On Ring With an external modem installed, the Modem Ring-on function will allow your system to power-on to respond to incoming calls. By default, the Resume on Ring field is Disabled. To use this function, please follow the steps below. 1. Make sure the computer system is powered off. 2. Connect the external modem to the COM 1 or COM 2 serial por t. 3. Switch on the power of the external modem.
3 Award BIOS Setup Utility network. Date (of Month) and Timer (hh:mm:ss) will appear right below this field. Disabled Disables the automatic power-on function. (default) Date (of Month) 0 1-31 The system will power-on everyday according to the time set in the Timer (hh:mm:ss) field. Select a date you would like the system to power-on. The system will power-on on the set date, and time set in the Timer (hh:mm:ss) field.
Award BIOS Setup Utility 3 Resources Controlled By The Award Plug and Play BIOS has the capability to automatically configure all of the boot and Plug and Play compatible devices. Auto Manual The system will automatically detect the settings for you. The categories that follow will not be shown on the screen. This will allow you to set the IRQ/DMA (you have assigned your add-in card) to Legacy ISA or PCI/ISA PnP. For non-PnP ISA cards, select Legacy ISA. For PnP ISA or PCI cards, select PCI/ISA PnP.
3 Award BIOS Setup Utility 3.1.6 Load Fail-Safe Settings The Load Fail-Safe Settings option loads the troubleshooting default values permanently stored in the ROM chips. These settings are not optimal and turn off all high performance features. You should use these values only if you have hardware problems. Highlight this option on the main menu and press . The message below will appear. Load Fail-Safe Settings (Y/N)? N If you want to proceed, type and press .
Award BIOS Setup Utility 3 Onboard Primary PCI IDE and Onboard Secondary PCI IDE These categories allow you to enable or disable the primar y and secondary IDE controller. The default is Enabled. Select Disabled if you want to add a different hard drive controller. IDE Prefetch Mode This allows data and addresses to be stored in the internal buffer of the chip, thus reducing access time. Enable this field to achieve better performance. IDE HDD Block Mode Enabled The IDE HDD uses the block mode.
3 Award BIOS Setup Utility IDE Primary Master/Slave UDMA and IDE Secondary Master/ Slave UDMA These categories allow you to set the Ultra DMA in use. When Auto is selected, the BIOS will select the best available option after checking your hard drive or CD-ROM. Auto The BIOS will automatically detect the settings for you. Disabled The BIOS will not detect these categories. Init Display First This field is used to select whether to initialize AGP or PCI first when the system boots.
Award BIOS Setup Utility 3 Disabled Disables the onboard serial por t 1 and/or serial por t 2. UART2 Mode Select The system board supports IrDA function for wireless connectivity between your computer and peripheral devices. You may not use IrDA (J12) and the COM 2 serial por t (J8) at the same time. If you are using the COM 2 serial por t, make sure UART2 Mode Select is set to Normal. To use the IrDA function, follow the steps below. 1. Connect your IrDA cable to connector J12 on the system board. 2.
3 Award BIOS Setup Utility The parallel modes are SPP, EPP, ECP and ECP+EPP. The default is ECP+EPP. Both ECP Mode Use DMA and EPP Mode Select will appear on the screen. If you selected EPP, EPP Mode Select will appear. This field applies to standard specification. The options are EPP1.9 and EPP1.7. Default setting: EPP1.7. If you selected ECP, ECP Mode Use DMA will appear. This is used to select a DMA channel for the parallel port. The options are 1 and 3. Default setting: 3.
Award BIOS Setup Utility 3 Mouse Left When this option is selected, double-click the left button of the mouse to power-on the system. Mouse Right When this option is selected, double-click the right button of the mouse to power-on the system. Any Key Press any key to power-on the system. Keyboard 98 When this option is selected, press the wake up key of the Windows 98 compatible keyboard to power-on the system. 3.1.
3 Award BIOS Setup Utility 3.1.11 IDE HDD Auto Detection Use this option to detect the parameters for the hard disk drives installed in your system. These parameters will then be automatically entered into the "Standard CMOS Setup". The IDE HDD Auto Detection screen displays the following categories of information: Size, Cylinders, Heads, Precomp, LandZone, Sectors and Mode. ROM PCI/ISA BIOS CMOS SETUP UTILITY AWARD SOFTWARE, INC.
Award BIOS Setup Utility 3 3.1.12 Save & Exit Setup When all the changes have been made, highlight Save & Exit Setup and press . The message below will appear : Save to CMOS and Exit (Y/N)? N Type Y and press . The modifications you have made will be written into the CMOS memor y, and the system will reboot. You will once again see the initial diagnostics on the screen.
4 Supported Softwares Chapter 4 - Supported Softwares 4.1 Desktop Management Interface (DMI) The system board comes with a DMI built into the BIOS. DMI, along with the appropriately networked software, is designed to make inventor y, maintenance and troubleshooting of computer systems easier. With DMI, a network administrator or MIS engineer can remotely access some information about a par ticular computer system without physically going to it.
Supported Softwares 4 4.1.
4 Supported Softwares Add DMI 1. Use the ← or → arrow keys to select the Add DMI menu. 2. Highlight the item on the left screen that you would like to add by using the ↑ or ↓ arrow keys, then press . 3. The cursor will move to the screen you select allowing you to enter information about the added item. 4. Press to save information into the flash ROM. To view information about the added items, go to the Edit DMI menu. Load DMI File 1.
Supported Softwares 4 4.2 Hardware Doctor Utility The system board comes with a Hardware Doctor utility contained in the provided CD. This utility is capable of monitoring the systems health conditions and allows you to manually set a range (Highest and Lowest Limit) to the items being monitored. If the settings/values are over or under the set range, a warning message will pop-up. The utility can also be configured so that a beeping alarm will sound whenever an er ror occur s.
4 Supported Softwares The rightmost column of the screen shows the current value of each monitored item. To set the highest and lowest limit of each item, click on the arrow buttons in the Lowest Limit or Highest Limit column. However, we DO NOT recommend that you change the settings of the Voltages. Make sure to leave them in their default setting. To fur ther configure the utility, select Configuration in the Tools menu. The Monitoring Config. screen will appear.
Supported Softwares 4 Beep Besides the pop-up warning message, you can choose to enable the beep alarm so that if an abnormal condition occurs, an alarm will sound. Due to its hardware limitation, the only item that cannot be enabled is System Temp. If the internal temperature of the system is too high, only a warning message will pop-up. Temperature Unit You can select the temperature unit between Celsius and Fahrenheit. The default unit is Celsius.
4 Supported Softwares You must first install VIA® Service Pack prior to installing any other drivers. However, this may not be the case for some AGP cards. Please read carefully the information below. Important: The VGA dr iver that came with some AGP cards (Asus, Leadtek, etc) is already bundled with the AGP VxD driver. Since the version of the bundled VxD driver may be older than the one provided in the CD, installing the bundled VxD driver may cause problems.
System Error Message A Appendix A - System Error Message When the BIOS encounters an error that requires the user to correct something, either a beep code will sound or a message will be displayed in a box in the middle of the screen and the message, PRESS F1 TO CONTINUE, CTRL-ALT-ESC or DEL TO ENTER SETUP, will be shown in the information box at the bottom. Enter Setup to correct the error. A.1 POST Beep There are two kinds of beep codes in the BIOS.
A System Error Message setting than indicated in Setup. Determine which setting is correct, either turn off the system and change the jumper or enter Setup and change the VIDEO selection. FLOPPY DISK(S) fail (80) Unable to reset floppy subsystem. FLOPPY DISK(S) fail (40) Floppy type mismatch. Hard Disk(s) fail (80) HDD reset failed. Hard Disk(s) fail (40) HDD controller diagnostics failed. Hard Disk(s) fail (20) HDD initialization error. Hard Disk(s) fail (10) Unable to recalibrate fixed disk.
Troubleshooting B Appendix B - Troubleshooting B.1 Troubleshooting Checklist This chapter of the manual is designed to help you with problems that you may encounter with your personal computer. To efficiently troubleshoot your system, treat each problem individually. This is to ensure an accurate diagnosis of the problem in case a problem has multiple causes. Some of the most common things to check when you encounter problems while using your system are listed below. 1.
B Troubleshooting The picture seems to be constantly moving. 1. The monitor has lost its ver tical sync. Adjust the monitors vertical sync. 2. Move away any objects, such as another monitor or fan, that may be creating a magnetic field around the display. 3. Make sure your video cards output frequencies are supported by this monitor. The screen seems to be constantly wavering. 1. If the monitor is close to another monitor, the adjacent monitor may need to be turned off.
Troubleshooting B Hard Drive Hard disk failure. 1. Make sure the correct drive type for the hard disk drive has been entered in the BIOS. 2. If the system is configured with two hard drives, make sure the bootable (first) hard drive is configured as Master and the second hard drive is configured as Slave. The master hard drive must have an active/bootable par tition. Excessively long formatting period. 1.
B Troubleshooting Serial Port The serial device (modem, printer) doesnt output anything or is outputting garbled characters. 1. Make sure that the serial devices power is turned on and that the device is on-line. 2. Verify that the device is plugged into the correct serial port on the rear of the computer. 3. Verify that the attached serial device works by attaching it to a serial por t that is working and configured correctly.
