Tyan Computer TYAN S1668 Boot Up Floppy Seek, Boot Up NumLock Status Default value is On

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wBoot Up Floppy Seek

During POST, the BIOS will determine if the floppy disk drive installed is 40 or 80 tracks. 360K type is 40 tracks while 720K, 1.2M and 1.44M are all 80 tracks. Default value is Enabled

Enabled BIOS searches for floppy disk drive to determined if it is 40 or 80 tracks. Note that the BIOS cannot tell from 720k, 1.2M or 1.44M drive type as they are all 80 tracks

Disabled BIOS will not search for the type of floppy disk drive by track number. Note that there will not be any warning messages if the drive installed is 360K

wBoot Up NumLock Status Default value is On

On O f f

Keypad is number keys

Keypad is arrow keys

wMemory Parity Check The default value is disabled

wGate A20 Option

Gate A20 controls the ability to access memory addresses above 1 MB by enabling (Fast) or disabling (Normal) access to the processor. Default value is Fast

wTypematic Rate Setting, Typematic Rate (char/sec), and Typematic Delay.

Typematic Rate Setting enables or disables the following two options. TheTypematic Rate (6, 8, 10, 12, 15, 20, 24, or 30 characters per second) and Typematic Rate Delay (250, 500, 750, or 1000 milliseconds) controls the speed at which the keystroke is repeated. The selected character is displayed when a key is held down after a delay set by the Typematic Rate Delay. It then repeats at a rate set by the Typematic Rate.

S1668-ATX-001 http://www.tyan.com

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Contents Tyan S1668 Dual Pentium Pro ATX 440FX PCI-ISA System Board Table Of Contents Introduction Hardware Specifications/Features Software Specifications EnvironmentBoard Installation On Board Resource Setting .1 S1668 ATX Board Layout VRM1Dram Voltage J2, J3, J14, J15, J4, J5, J16 and J17Default Jumper Settings CPU Speed J27, J21, J22, J23, and J24Cmos Resest/Password Reset J41Default off CPU Clock Multiplier J21, J22, J23 and J24Selection J28 & J29 Speaker Connector J43 Keylock Connector J44Turbo Switch J47 Non-Turbo Mode Not Supported Flash Eeprom J32Default Reset Connector J45Turbo LED Connector J42 InfraRed Interface Con4 and Con5Turbo Switch Soft Power On Switch J1 CPU FAN Power J49 and J50Speaker Connector Installation Turbo LED Connector InstallationHardware Reset Switch Connector Installation Refer to for Flash Eeprom upgrade proceduresDram Installation Voltage ID for Older Pentium Pro CPUs J10 and J20Memory Table Bank0 Bank1 Bank2 Bank3 TotalCPU Installation Connecting the Power Supply & On/Off Switch VRM InstallationPeripheral Device Installation Bios Configuration Entering SetupControl Keys Setup Page menu/Option Page Setup Menu Getting Help Main MenuChipset features setup Standard Cmos setupBios features setup Power Management setupTime Standard Cmos Setup MenuDate Primary/Secondary Drive type Drive a type/Drive B typeMemory VideoHalt On Expanded Memory Other MemoryVirus warning Boot SequenceSwap Floppy Drive Default value is Disabled CPU Internal Cache/External CacheBoot Up Floppy Seek Boot Up NumLock Status Default value is OnChipset Features Setup Power Management ROM ISA Bios Power Management Setup Award SOFTWARE, INCPower Down Activities Doze ModeStandby Mode PCI Slot Configuration Legacy ISA Resources Controlled ByIRQ n assigned to PCI/ISA PnPIntegrated Peripherals Load Setup Defaults ROM ISA Bios Cmos Setup Utility Award SOFTWARE, INC IDE HDD Auto Detection Flash Writer Utility Page Flash Memory Writer Utility Screen Award Flash Memory WriterTimer & DMA Channel MAP System Resources