Tyan Computer TYAN S1668 user manual Expanded Memory, Other Memory

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Expanded Memory

Expanded Memory (EMS) defines a 64 K page frame in the area between 640K and 1Mb containing four 16K pages that are windows into the EMS memory. Programs issue requests to the EMS manager to switch the page to any part of EMS memory. Extended memory can be converted to emulate EMS by using a memory manager such as EMM386 that ships with Windows and DOS.

Other Memory

This refers to memory located in the 640K to 1024K ad dress space. This memory can be used for different applications. DOS uses this area to load device drivers to keep as much conventional memory free for application programs as possible.

4.6. BIOS FEATURES SETUP

ROM ISA BIOS

BIOS FEATURES SETUP

AWARD SOFTWARE, INC.

Virus Warning	:Enabled
CPU Internal Cache	:Enabled
External Cache	:Enabled
Boot Sequence	:A,C
Swap Floppy Drive	:Disabled
Boot Up Floppy Seek	:Enabled
Boot Up NumLock Status	:On
Memory Parity Check	:Enabled
Gate A20 Option	:Fast
Typematic Rate Setting	:Disabled
Typematic Rate (Chars/sec)	:6
Typematic Delay (msec)	:250
Security Option	:Setup
PS/2 mouse function	:Disabled
PCI/VGA Palette Snoop	:Disabled

	Video BIOS Shadow		:Enabled
	C8000-CBFFF Shadow		:Disabled
	CC000-CFFFF Shadow		:Disabled
	D0000-D3FFF Shadow		:Disabled
	D4000-D7FFF Shadow		:Disabled
	D8000-DBFFF Shadow		:Disabled
	DC000-DFFFF Shadow		:Disabled
ESC :Quit			:Select Item
F1	:Help	PU/PD/+/- :Modify
F5	:Old Values	(Shift)F2	:Color
F6	:Load BIOS Defaults
F7	:Load Setup Defaults

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 VRM1Jumper Settings CPU Speed J27, J21, J22, J23, and J24 Cmos Resest/Password Reset J41Default offDram Voltage J2, J3, J14, J15, J4, J5, J16 and J17Default CPU Clock Multiplier J21, J22, J23 and J24Speaker Connector J43 Keylock Connector J44 Turbo Switch J47 Non-Turbo Mode Not SupportedSelection J28 & J29 Reset Connector J45 Turbo LED Connector J42Flash Eeprom J32Default InfraRed Interface Con4 and Con5Soft Power On Switch J1 CPU FAN Power J49 and J50 Speaker Connector InstallationTurbo Switch 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 VRM Installation Peripheral Device InstallationConnecting the Power Supply & On/Off Switch Bios Configuration Entering SetupControl Keys Setup Page menu/Option Page Setup Menu Getting Help Main MenuStandard Cmos setup Bios features setupChipset features setup Power Management setupStandard Cmos Setup Menu DateTime Primary/Secondary Drive type Drive a type/Drive B typeVideo Halt OnMemory Expanded 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 Power Management ROM ISA Bios Power Management Setup Award SOFTWARE, INCDoze Mode Standby ModePower Down Activities PCI Slot Configuration Resources Controlled By IRQ n assigned toLegacy ISA 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