Tyan Computer TYAN S1471 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 determind 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

Off

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) control 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.

S1471-001-01 http://www.tyan.com

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Contents Tyan S1471 Table Of Contents Introduction Hardware Specifications/Features Software Specifications EnvironmentBoard Installation On Board Resource Setting .1 S1471 Board Layout RTCCPU Speed Settings for Cyrix/SGS/IBM 6x86/M1 J15 J40 J39 CPU Voltage Regulator SettingsVolts J11 Default Off Memory Voltage DIMMs Default is VoltsDefault CPU Multiplier J40 and J39 Host Bus Setting J15Keylock Connector J47 Reset Connector J41 Turbo LED Connector J48 Flash Eprom J50Cmos Resest/Password Reset J45Default off Port Setting J13 and J14 Speaker Connector J42 Turbo Switch J49Infra Red Interface Con9 and Con10 VCCTurbo Switch Speaker Connector InstallationTurbo LED Connector Installation Hardware Reset Switch Connector Installation Refer to for Flash Eprom upgrade procedures9DRAM Installation CPU Installation Peripheral Device Installation Upgrading Cache MemoryConnecting the Power Supply GND GND VCCPage To Enter Setup Before Boot Press CTRL-ALT- ESC or DEL KEY Entering SetupPress F1 to CONTINUE, CTRL-ALT-ESC or DEL to Enter Setup Control Keys Setup Page menu/Option Page Setup Menu Getting Help Main MenuStandard Cmos setup Bios features setupChipset features setup Power Management setupDate Standard Cmos Setup MenuTime Primary/Secondary Drive type Drive a type/Drive B typeVideo EGA/VGAHalt On MemoryExpanded Memory Other MemoryBoot Sequence Swap Floppy Drive Default value is DisabledVirus warning CPU Internal Cache/External CacheBoot Up Floppy Seek Boot Up NumLock Status Default value is OnChipset Features Setup Video Bios ShadowChipset Features Screen Security OptionWPM Control by APM Power ManagementWVideo Off Method WStandby Mode Doze ModeWPower Down Activities PCI Slot Configuration Resources Controlled By WIRQ n assigned toLegacy ISA PCI/ISA PnPIntegrated Peripherals Load Setup Defaults Enter PasswordROM ISA Bios Cmos Setup Utility Award SOFTWARE, INC Password DisabledIDE HDD Auto Detection Flash Writer Utility Page Flash Memory Writer Utility Screen Award Flash Memory WriterTimer MAP System ResourceDMA Channels NMI