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VIA Technologies K8T890 User Manual

For amd socket754 based athlon 64 processor
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K8T890
K8T890
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VIA K8T890
VIA
K8T890
K8T890 mainboard for AMD Socket
754 based Athlon 64 processor
754 based Athlon 64 processor
754 based Athlon 64 processor
754 based Athlon 64 processor
754 based Athlon 64 processor
TRADEMARK
All products and company names are trademarks or registered
trademarks of their respective holders.
These specifications are subject to change without notice.
mainboard for AMD Socket
mainboard for AMD Socket
mainboard for AMD Socket
mainboard for AMD Socket
Manual Revision 1.1
August 22, 2005

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Summary of Contents for VIA Technologies K8T890

  • Page 1 K8T890 mainboard for AMD Socket mainboard for AMD Socket VIA K8T890 K8T890 K8T890 mainboard for AMD Socket mainboard for AMD Socket mainboard for AMD Socket 754 based Athlon 64 processor 754 based Athlon 64 processor 754 based Athlon 64 processor...
  • Page 2 DISCLAIMER OF WARRANTIES: THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE OF THE MANUFACTURER LIMITED WARRANTY. THE MANUFACTURER EXPRESSLY EXCLUDES ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING ITS PRODUCTS; INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
  • Page 3 80 Port Frequently Asked Questions Below is a list of some basic POST Codes, possible problems and solutions. For more detailed information about POST Codes, refer to Appendix C in this manual. P O ST C O D E P r o bl e m So l uti o n FFh o r CFh 1 .B IO S c hip inse rte d...

  • Page 4: Table Of Contents

    Table of Contents Page Section 1 Introduction Package Contents ............1- 1 Mainboard Features ........... 1- 2 System Block Diagram ..........1- 5 Section 2 Specification Mainboard Specification ..........2- 1 Section 3 Installatio Mainboard Layout ............. 3- 1 Easy Installation Procedure ........3- 2 CPU Insertion .............
  • Page 5 Power BIOS Features ..........4- 19 Defaults Menu ............4- 22 Supervisor/User Password Setting ......4- 23 Exit Selecting .............. 4- 24 Section 5 RAID Configuration Introduction ............... 5- 1 VIA RAID Features ............. 5- 3 Enable RAID Function ..........5- 4 Section 6 Driver Installation Easy Driver Installation ..........
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  • Page 7: Introduction

    Introduction Section 1 INTRODUCTION 1-1 Package Contents Optional Items Contents H. Extra USB2.0 port cable A. Mainboard If you need the optional item, please B. User’s manual contact your dealer for assistance. C. Floppy drive cable D. HDD drive cable E.

  • Page 8: Mainboard Features

    AMD website at http://www.amd.com Chipset The board is designed with VIA chipset, K8T890 as North Bridge and VT8237R as South Bridge, providing a feature rich and scalable platform. For more information about the new features VIA Chipset, check out the AMD website at http://www.via.com...
  • Page 9 Introduction USB2.0 A popular USB standard for plugging in peripherals with up to 480Mbps transfer speed while maintaining backward compatibility with older USB1.1 device. Mainboard is equipped with 6 channel of audio to support Dolby Digital 5.1 audio for DVD-playback. The onboard audio jacks can be configured for normal 2 channel mode or 6 channel mode.
  • Page 10 Introduction Special Features BIOS Features: Magic Health Reports your system hardware status for every boot-up to help detect faults early. Monitor hardware status including CPU temperature, CPU/Memory/ Chipset voltage, fan RPM speed for chassis fan, CPU fan supply fan. EZ-Boot Simply press “ESC”...

  • Page 11: System Block Diagram

    Introduction 1-3 System Block Diagram Page 1-5...
  • Page 12 Introduction The following table of VGA cards have been tested compatible with this mainboard. 4X AGP Card nVidia Geforce 2 ELSA MX-400 32MB ELSA MX-460 64MB DDR GLADIAC 517VIVO nVidia Geforce 4 ASUS Ti-4400 128MB V8440 APT MVGA-NVG25 BAUTi-4600 128MB ATI Radeon 8500DDR 64MB 8X AGP Card Albatron GeForce FX5200EP 128MB DDR...

  • Page 13: Specification

    Processor Support Socket-754 based AMD Athlon-64/Sempron 1.6GTs Hyper Transport processors with up to 3700+ Chipset VIA K8T890 + VT8237R Chipset Main Memory Two 184-pin DDR SDRAM DIMM sockets Support single or double sided 2.5v DDR-266/333/400 DIMMs architecture in 128/256/512Mb technologies...
  • Page 14 Specification S-ATA RAID Two S-ATA ports from VT8237R with up to 150MBps bandwidth with RAID 0,1, Smart RAID (by VIA) 10/100Mbps Fast Ethernet with onboard VIA VT6103L LAN PHY Audio Selectable 2, 6 channel audio from onboard RealTek ALC655 AC'97 v2.3 compliant CODEC - Support Aux-In, CD-In - Coaxial S/PDIF-out available on rear panel...
  • Page 15 Specification Peripheral Interfaces At Rear Panel PS/2 keyboard and mouse ports One Parallel (printer) port One S/PDIF-Out Coaxial jack One Serial port One RJ45 LAN connector Four USB2.0 ports Three Audio jacks Onboard connector and pin-header One floppy drive connector Two ATA-100/133 IDE connector Four extra USB2.0 ports One CD-IN and AUX-IN connector...
  • Page 16 Specification Supports “Cool’n’ Quiet” power saving technology Power BIOS for excellent over clocking features: - Support Asynchronous FSB/DIMM timing mode - Support BIOS adjustable CPU clock and voltage, chipset voltage, DIMM frequency and voltage settings. Form Factor 305mm x 220 mm ATX size Page 2-4...

  • Page 17: Installation

    Installation Section 3 INSTALLATION Mainboard Layout Page 3-1...

  • Page 18: Easy Installation Procedure

    Installation Easy Installation Procedure The following must be completed before powering on your new system: 3-1. CPU Installation 3-2. Jumper Settings 3-3. System Memory 3-4. Expansion Slots 3-5. Device Connectors 3-1 CPU Installation <Figure 1> <Figure 2> Step 2 Step 1 Place the retention mechanism on the Place the back plate into the two holes mainboard as shown.
  • Page 19 Installation <Figure 6> <Figure 5> Step 5 Step 6 Close the socket by lowering and Align pin 1 on the CPU with pin 1 on locking the actuation lever. the CPU socket and gently insert the Apply thermal compound to the top of CPU.

  • Page 20: Jumper Settings

    Installation 3-2 Jumper Settings JCMOS: Clear CMOS data Jumper If the CMOS data becomes corrupted or you forgot the supervisor or user password, clear the CMOS data to reconfigure the system back to the default values stored in the ROM BIOS. Settings: 1-2: Normal (Default) 2-3: Clear CMOS...

  • Page 21: System Memory Configuration

    Installation 3-3 System Memory Configuration Memory Layout The mainboard accommodates two PC2100/PC2700/PC3200 184-pin DIMMs (Dual In- line Memory Modules): • Supports up to 2.0GB of 266/333/400MHz DDR SDRAM. • The DDR400 only support two maximum unbuffered DIMMs and not available on registered DIMMs. •...

  • Page 22: Expansion Slots

    Installation 3-4 Expansion Slots PCI-E VGA Slots The elongated PCI-E*16 is intended for PCI- E VGA card installation. PCI-E Slots The mainboard is equipped with two PCI-E*1 compliant with PCI Express 1.0a. PCI-E AGX Slot VGA Slot The mainboard is equipped with an AGX PCI-E Slot slot.

  • Page 23: Device Connectors

    Installation 3-5 Device Connectors The I/O back panel for this mainboard is shown below. When installing the mainboard into the computer case, use the bundled I/O shield to protect this back panel. RJ45 Parallel Port Line-in/Rear out (Blue) PS/2 Mouse Line-out/Front out (Green) PS/2 Mic-in/Center&Subwoofer (Pink)
  • Page 24 Installation Floppy Controller Connector This connects to the floppy disk drive. IDE1/IDE2:Ultra DMA-100/133 Primary/Secondary IDE1 IDE Connector This mainboard is equipped with 2 IDE connectors to support up to 4 ATA-100/133 IDE drives. IDE2 It supports PIO and DMA mode operations for maximum data transfer rate of 133MB/sec per channel.
  • Page 25 Installation CFPA: Front Panel Audio Connector When the jumpers are removed this connector can be used for front panel audio. The front panel phone jack should have “normal close” switch. Without phone plug inserted, the rear panel audio is enabled. With phone plug inserted, the rear panel audio will be disabled.
  • Page 26 Installation SATA1 / SATA2: Two Serial ATA Connectors These connectors enable you to connect Serial ATA devices that conform to the Serial ATA specification. SATA2 SATA1 CP80P: 80 Port Debug LED Provides two-digit POST code to show why the system fail to boot. Allows quick and easy optimization.
  • Page 27 Installation CUSB3/CUSB4: Four USB 2.0 ports This mainboard includes additional USB2.0 ports, identified by two 10-pin connector. If you wish to use the additional USB ports, install the card-edge bracket to the system chassis then insert its cables to this 10-pin connector. CUSB3 CUSB4 CAUTION ! Please make sure the USB cable has the same pin...
  • Page 28 Installation CFP: Front Panel Connector HD_LED This LED will light up whenever the hard drive is being accessed. PWR_LED This connects to the power button of the system chassis This switch allows you to reboot without having to power off the system thus prolonging the life of the power supply or system.

  • Page 29: Power-On/Off (Remote)

    Installation 3-6 Power-On/Off (Remote) This board has a 24-pin ATX and a 4-pin ATX12V power supply connector to support power supplies with Remote On/Off feature. The 4-pin ATX12V connector must be plugged in for the system to operate safely. The chassis power button should be connected to the mainboard front panel PW_ON header.

  • Page 30: Acpi S3 (Suspend To Ram) Function

    Installation 3-8 ACPI S3 (Suspend To RAM) Function This mainboard supports the STR (Suspend To RAM) power management scheme by maintaining the appropriate power states in the DDR SDRAM interface signals. The power source to the DDR SDRAM is kept active during STR (ACPI S3).

  • Page 31: Bios Setup

    BIOS Section 4 BIOS SETUP Main Menu The ROM BIOS contains a built-in Setup program which allows user to modify the basic system configuration and hardware parameters. The modified data is stored in a battery-backed CMOS, so that data will be retained even when the power is turned off.

  • Page 32: Standard Cmos Setup

    BIOS The main menu displays all the major selection items. Select the item you need to reconfigure. The selection is made by moving the cursor (press any direction (arrow key ) to the item and pressing the ‘Enter’ key. An on-line help message is displayed at the bottom of the screen as the cursor is moved to various items which provides a better understanding of each function.

  • Page 33: Advanced Bios Features

    BIOS 4-2 Advanced BIOS Features Selecting the “ADVANCED BIOS FEATURES” option in the CMOS SETUP UTILITY menu allows users to change system related parameters in the displayed menu. This menu shows all of the manufacturer’s default values for the board. Pressing the [F1] key displays a help message for the selected item.
  • Page 34 BIOS First /Second/Third/Other Boot Device The BIOS attempts to load the operating system from the devices in the sequence selected in these items. Options: Floppy, LS120, Hard Disk, CDROM, ZIP100, USB-FDD, USB-CDROM, Legacy LAN, Disabled. Boot Other Device When enabled, the system searches all other possible locations for an operating system if it fails to find one in the devices specified under the first, second, and third boot devices.

  • Page 35: Advanced Chipset Features

    BIOS Software resides on both the disk drive and the host computer. If a device failure is predicted, the host software, through the Client WORKS S.M.A.R.T applet, warns the user of the impending condition and advises appropriate action to protect the data. Options: Enabled, Disabled.

  • Page 36: Dram Configuration

    BIOS DRAM Configuration Scroll to DRAM Configuration and press <Enter>. The following screen appears: Current FSB Frequency Display the current CPU front side bus frequency information. Current DRAM Frequency Display the current DRAM frequency information. 1T/2T Memory Timing For setting DRAM Timing. Options: Auto, 1T, 2T.
  • Page 37 BIOS Row precharge Time (Trp) This filed specifies the Row Precharge Time. Precharge to active or Auto-refresh of the same bank. Options: Auto, 2T ~ 7T. Row to Row delay (Trrd) This filed specifies the Row to Row delay of different banks. Options: Auto, 2T ~ 4T.
  • Page 38 BIOS Refresh period (Tref) This filed specifies the number of clock cycles between refresh. Options: Auto, 15.6us, 7.8us, 3.9us. AGP & P2P Bridge Control Scroll to AGP & P2P Bridge Control and press <Enter>. The following screen appears: AGP Aperture Size This item defines the size of the aperture if you use an AGP graphics adapter.
  • Page 39 BIOS LDT & PCI Bus Control Scroll to LDT & PCI Bus Control and press <Enter>. The following screen appears: Upstream LDT Bus Width Options: 8 bit, 16 bit. Downstream LDT Bus Width Options: 8 bit, 16 bit. LDT Bus Frequency This item sets CPU Hyper Transport front size bus.

  • Page 40: Integrated Peripherals

    BIOS 4-4 Integrated Peripherals Figure 5: Integrated Peripherals OnChip SATA Boot ROM/VIA Lan Boot ROM Enables/disable the onboard SATA/LAN Boot ROM. Options: Enabled, Disabled. Chipset IDE Devices Scroll to Chipest IDE Device and press <Enter>. The following screen appears: Onchip SATA Enables the onboard SATA feature.
  • Page 41 BIOS SATA Mode This allows you to set RAID mode for Serial ATA devices. Refer to section 5 for more RAID information. Options: RAID, IDE. IDE DMA transfer access Automatic data transfer between system memory and IDE device with minimum CPU intervention.
  • Page 42 BIOS system software both support Ultra DMA-33/66/100/133, select Auto to enable UDMA mode by BIOS. Options: Auto, Disabled. IDE HDD Block Mode Block mode is also called block transfer, multiple commands, or multiple sector read/write. If your IDE hard drive supports block mode (most new drives do), select Enabled for automatic detection of the optimal number of block read/writes per sector the drive can support.

  • Page 43: Legacy Devices

    BIOS USB Mouse Support Enable/disable support for USB mouse under DOS. Options: Enabled, Disabled. Legacy Devices Scroll to Legacy Deivces and press <Enter>. The following screen appears: Onboard FDC Controller Select “Enabled” if you wish to use onboard floppy disk controller (FDC). If you install an external FDC or the system has no floppy drive, select “Disabled “in this field.

  • Page 44: Power Management Setup

    BIOS 4-5 Power Management Setup Choose the “Power Management setup” in the CMOS Setup Utility to display the following screen. This menu allows the user to modify the power management parameters and IRQ signals. In general, these parameters should not be changed unless it’s absolutely necessary.
  • Page 45 BIOS Run VGABIOS if S3 Resume This determines whether or not to enable the system to run the VGA BIOS when resuming from S3(STR) or S1&S3. Options: Auto, Yes, No. PWRON After PWR-Fail This item enables your computer to automatically restart or return to its last operat- ing status after power returns from a power failure.
  • Page 46 BIOS USB Wake-Up From S3 This item allows a USB device to wake-up the system from S3 suspend state. Options: Enabled, Disabled. PowerOn by PCI Card An input signal from PME on the PCI card awakens the system from soft-off state. Options: Enabled, Disabled.

  • Page 47: Pnp/Pci Configuration

    BIOS 4-6 PNP/PCI/PCI-E Configuration This page lets the user to modify the PCI IRQ signals when various PCI cards are inserted. WARNING: Conflicting IRQ’s may cause system unable to locate certain devices. Figure 7: PNP/PCI/PCI-E Configuration Setup Resources Controlled By Determines what controls system PNP/PCI/PCI-E resources.

  • Page 48: Pc Health Status

    BIOS 4-7 PC Health Status Figure 8: PC Health Status Show PC Health in POST When this function is enabled the PC Health information is displayed during the POST (Power On Self Test). Options: Disabled, Enabled. Shutdown Temperature This is the temperature that the computer will turn off the power to combat the effects of an overheating system.

  • Page 49: Power Bios Features

    BIOS Chipset Voltage The voltage level of the chipset voltage. VBAT(V) The voltage level of the battery. +3.3(V), +5(V), 5VSB(V) The voltage level of the switching power supply. 4-8 Power BIOS Features This page lets you adjust various parameters to obtain improved performance for overclocking.
  • Page 50 BIOS CPU Ratio Control This item allows you to enable the CPU clock ratio control. Choose “Enabled” to key in a CPU clock Ratio in the next selection. Options: Enabled, Disabled. CPU Clock Ratio Use this item to select a multiplier to set the CPU frequency. See CPU Clock item below for explanation.
  • Page 51 BIOS Overclocking failure will cause no display on the monitor. To overcome this switch off the power supply and switch on again. Restart the system, press and hold <Insert> key. This will revert the BIOS to default or initial setting. Memclock index value (Mhz) This item sets the memory clock.

  • Page 52: Defaults Menu

    BIOS 4-9 Defaults Menu Selecting “Defaults” from the main menu shows you two options which are described below Load Fail-Safe Defaults When you press <Enter> on this item you get a confirmation dialog box: Load Fail-Safe Defaults (Y/N) ? N Pressing ‘Y’...

  • Page 53: Supervisor/User Password Setting

    BIOS 4-10 Supervisor/User Password Setting This function lets you set either Supervisor or User Password, or both, to prevent unauthorized changes to BIOS menus. supervisor password: full rights to enter and change options of the setup menus. user password: only enter but no rights to change options of the setup menus.

  • Page 54: Exit Without Saving

    BIOS 4-11 Exiting BIOS Save & Exit Setup Pressing <Enter> on this item asks for confirmation: Save to CMOS and EXIT (Y/N)? Y Pressing “Y” stores the selections made in the menus in CMOS – a special section of memory that stays on after you turn your system off. The next time you boot your computer, the BIOS configures your system according to the Setup selections stored in CMOS.

  • Page 55: Introduction

    S-ATA RAID Configuration Section 5 S-ATA RAID CONFIGURATION Introduction This section gives a brief introduction on RAID-related background knowledge and a general procedure to setup RAID system on this mainboard. RAID Basics RAID (Redundant Array of Independent Disks) is a method of combining two or more hard disk drives into one logical unit known as a RAID array.
  • Page 56 S-ATA RAID Configuration RAID 0 (Striping) RAID 0 reads and writes sectors of data interleaved between multiple drives. If any disk member fails, it affects the entire array. The disk array data capacity is equal to the number of drive members times the capacity of the smallest member. The striping block size can be set from 4KB to 64KB.

  • Page 57: Via Raid Features

    S-ATA RAID Configuration VIA S-ATA RAID Features The VIA S-ATA RAID solution uses the VT8237R chip as a RAID controller, which is a 2-channel S-ATA solution. Listed below are the main features and benefits of VIA S-ATA RAID: • Support two S-ATA hard disk drives. •...

  • Page 58: Enable Raid Function

    S-ATA RAID Configuration Enable RAID Function For any RAID controller, the general procedure to enable RAID function are shown below: Note: If you are not installing O/S into the RAID disks, you may skip Step 3 & Step 4. Step 1: Enable RAID ROM The system BIOS may disable all RAID function by default.
  • Page 59 S-ATA RAID Configuration Step 2: Create RAID Array RAID arrays are created using the RAID controller’s BIOS utility. VIA VT8237R Power-on the system and wait for the following screen to appear. Press the ”Tab” key to enter its BIOS configuration utility. The main interface of the BIOS utility is as below: Refer to Appendix B for details about creating RAID array using this utility.
  • Page 60 S-ATA RAID Configuration Method 2 1. Locate another computer and insert the bundled CD into its CD-ROM drive. 2. A main menu screen will appear (Autorun feature) 3. Select the page “RAID floppy” 4. Insert a blank floppy into the A:drive 5.

  • Page 61: Driver Installation

    Driver Installation Section 6 DRIVER INSTALLATION Easy Driver Installation Once the operating system has been installed, you need to install the drivers for the mainboard. Please select: Auto Installation Method 1 Manual Installation Method 2 >> VIA SERVICE PACK 4_IN_1 Driver >>...

  • Page 62: Realtek Sound Manager Quick User Guide

    Driver Installation Realtek Sound Manager Quick User-guide Introduction To obtain the best performance from your audio system, run the "Sound Manager" utility to adjust the settings to suit your needs. This section of the manual is intended to provide a quick user-guide to setup "Sound Manager". For more detailed information, refer to "Sound Manager manual"...
  • Page 63 Driver Installation Equalizer: <Figure 3> 3. There are 10 bands of equalizer control, check "ON" when you want to adjust the equalizer. Speaker Configuration: <Figure 4> 4. This page displays the mainboards's phone jack function when a corresponding audio mode (no. of speaker) is selected. Figure 4 above shows the phone jack setup for 2 channel mode.
  • Page 64 Driver Installation Speaker Test: <Figure 5> 5. To test the speaker , select the “Speaker Test” page and click directly on the speakers shown on the screen. This board is equipped with Jack Sensing capability. If an audio device is plugged into the wrong connector, a warning message will appear to remind users to check the connection.
  • Page 65 Driver Installation Connector Sensing: <Figure 7> 7. EZ-Connection shows the result of the detection. “Audio Connector” column reflects the settings used in the "Speaker Configuration" page. “Current Connection” column shows the type of device detected. If the results do not match, an exclamation mark will appear on the right side. Connector Sensing: <Figure 8>...
  • Page 66 Driver Installation HRTF Demo: <Figure 9> 9. This page lets you test the HRTF 3D Positional Audio features. Microphone: <Figure 10> 10. The “Noise Suppression” feature uses software to reduce background delay microphone recording. Page 6-6...
  • Page 67 Driver Installation General: <Figure 11> VIA [3059] ALC655 11. This page displays information regarding the audio hardware and software. To remove "Sound Manager" icon from Windows Task bar, uncheck "Show icon in system tray". Page 6-7...
  • Page 68 Driver Installation Page 6-8...

  • Page 69: Appendix

    Appendix Appendix A A-1 Update Your System BIOS Download the xxxxx.EXE file corresponding to your model from our website to an empty directory on your hard disk or floppy. Run the downloaded xxxxx.EXE file and it will self extract. Copy these extracted files to a bootable floppy disk. Note: The floppy disk should contain NO device drivers or other programs.
  • Page 70 Appendix 5. Key in File Name to save previous BIOS to file. XXXX XXXXX xxxxx.bin xxxxx.bin 6. To confirm and proceed, please key in [Y] to start the programming. XXXX XXXXX xxxxx.bin xxxxx.bin 7. The BIOS update is finished. XXXX XXXXX xxxxx.bin F10 : Exit...

  • Page 71: Via Raid Bios Utility

    Appendix Appendix B B-1 VIA RAID BIOS Utility Power-on the system and wait for the following screen to appear. Press the ”Tab” key to enter its BIOS configuration utility. The main interface of the BIOS utility is as below: Create Disk Array 1.
  • Page 72 Appendix 2. Select Array Mode and press <Enter>, a list of array modes will appear. High- light the target array mode that you want to create, and press <Enter> to confirm the selection. If RAID 1 is selected, an option list will popup and enable the users to select Create only or Create and duplicate.

  • Page 73: Delete Disk Array

    Appendix 4. If user selects a RAID 0 array in step 2, the block size of the array can also be selected. Use the arrow key to highlight Block Size and press <Enter>, then select a block size from the popup menu. The block size can be 4KB to 64KB. 5.

  • Page 74: View Serial Number Of Hard Drive

    Appendix Deleting a disk array will destroy all the data on the disk array except RAID 1 arrays. When a RAID is deleted, the data on these two hard disk drives will be reserved and become two normal disk drives. View Serial Number of Hard Drive Highlight Serial Number View and press <Enter>.

  • Page 75: Rebuild Broken Raid 1 Array

    Appendix Rebuild Broken RAID 1 Array When booting up the system, BIOS will detect if any member disk drives of RAID has failed or is absent. If BIOS detects any disk drive failures or missing disk drives, the status of the array will be marked as broken. If BIOS detects a broken RAID 1 array but there is a spare hard drive available for rebuilding the broken array, the spare hard drive will automatically become the mirroring drive.
  • Page 76 Appendix 3. Choose Replacement Drive and Rebuild: This item enables users to select an already-connected hard drive to rebuild the broken array. After choosing a hard drive, the channel column will be activated. Highlight the target hard drive and press <Enter>, a warning message will appear.

  • Page 77: Post Codes

    Appendix Appendix C C-1 POST CODES POST (hex) DESCRIPTION Test CMOS R/W functionality. Early chipset initialization: - Disable shadow RAM - Disable L2 cache (socket 7 or below) - Program basic chipset registers Detect memory - Auto-detection of DRAM size, type and ECC. - Auto-detection of L2 cache (socket 7 or below) Expand compressed BIOS code to DRAM Call chipset hook to copy BIOS back to E000 &...
  • Page 78 Appendix Detect CPU information including brand, SMI type (Cyrix or Intel) and CPU level (586 or 686). 19-1Ah Reserved Initial interrupts vector table. If no special specified, all H/W interrupts are directed to SPURIOUS_INT_HDLR & S/W interrupts to SPURIOUS_soft_HDLR. Reserved Initial EARLY_PM_INIT switch.
  • Page 79 Appendix Test 8259 functionality. Reserved 45-46h Reserved Initialize EISA slot Reserved Calculate total memory by testing the last double word of each 64K page. Program writes allocation for AMD K5 CPU. 4A-4Dh Reserved Program MTRR of M1 CPU Initialize L2 cache for P6 class CPU & program CPU with proper cacheable range.
  • Page 80 Appendix Reserved Initialize floppy controller Set up floppy related fields in 40:hardware. 70-72h Reserved (Optional Feature) Enter AWDFLASH.EXE if : -AWDFLASH is found in floppy drive. -ALT+F2 is pressed Reserved Detect & install all IDE devices: HDD, LS120, ZIP, CDROM….. Reserved Detect serial ports &...

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