User manual TYAN TIGER 133

[. . . ] Tyan S1834 Tiger 133 Motherboard User's Manual Revision 1. 20 Copyright © Tyan Computer Corporation, 2000. No part of this manual may be reproduced or translated without prior written consent from Tyan Computer Corp. All registered and unregistered trademarks and company names contained in this manual are property of their respective companies including, but not limited to the following. Award is a trademark of Phoenix Technologies Ltd. Windows is a trademark of Microsoft Corporation. [. . . ] The fields show the total installed random access memory (RAM) and amounts allocated to base memory, extended memory, and other (high) memory. RAM is counted in kilobytes (KB: approximately one thousand bytes) and megabytes (MB: approximately one million bytes). RAM is the computer's working memory, where the computer stores programs and data currently being used, so they are accessible to the CPU. Modern personal computers may contain up to 64 MB, 128 MB, or more. The DOS operating system and conventional applications use this area. Extended Memory: Above the 1-MB boundary. Early IBM personal computers could not use memory above 1 MB, but current PCs and their software can use extended memory. Other Memory: Between 640 KB and 1 MB; often called high memory. DOS may load terminate-and-stay-resident (TSR) programs, such as device drivers, in this area, to free as much conventional memory as possible for applications. Lines in your config. sys file that start with loadhigh load programs into high memory. http://www. tyan. com 38 Advanced BIOS Features The screen (shown on the following page) contains industry-standard options additional to the core PC AT BIOS. This section describes all fields offered by Award Software in this screen. The example screen below may vary from the one in your Setup program. Your system board designer may omit or modify some fields. Advanced BIOS Features - Fail-Safe Defaults CMOS Setup Utility - Copyright (C) 1984-2000 Award Software Standard CMOS Features Virus Warning CPU Internal Cache External Cache CPU L2 Cache ECC Checking Quick Power On Self Test First Boot Device Second Boot Device Third Boot Device Boot Other Device Swap Floppy Drive Boot UpFloppy Seek Boot Up NumLock Status Gate A20 Option Typematic Rate Setting X Typematic Rate (Chars/Sec) X Typematic Delay (Msec) Security Option MPS Version Control For OS OS Select For DRAM > 64MB Video BIOS Shadow C8000-CBFFF Shadow CC000-CFFFF Shadow D0000-D3FFF Shadow D4000-D7FFF Shadow D8000-DBFFF Shadow DC000-CFFFF Shadow :Move Enter:Select F5:Previous Values Enabled Enabled Enabled Enabled Disabled Floppy HDD-0 LS120 Enabled Disabled Enabled On Normal Disabled 6 250 Setup 1. 1 Non-OS2 Enabled Disabled Disabled Disabled Disabled Disabled Disabled v Item Help Menu Level Allows you to choose the VIRUS warning feature for IDE Hard Disk boot sector protection. If this function is enabled and someone attempts to write data into this area, BIOS will show a warning message on screen and alarm beep +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help F6:Fail-Safe Defaults F7:Optimized Defaults S1834 Tiger 133 39 w v Chapter 3 BIOS Configuration Advanced BIOS Features - Optimized Defaults CMOS Setup Utility - Copyright (C) 1984-2000 Award Software Standard CMOS Features Virus Warning CPU Internal Cache External Cache CPU L2 Cache ECC Checking Quick Power On Self Test First Boot Device Second Boot Device Third Boot Device Boot Other Device Swap Floppy Drive Boot UpFloppy Seek Boot Up NumLock Status Gate A20 Option Typematic Rate Setting X Typematic Rate (Chars/Sec) X Typematic Delay (Msec) Security Option MPS Version Control For OS OS Select For DRAM > 64MB Video BIOS Shadow C8000-CBFFF Shadow CC000-CFFFF Shadow D0000-D3FFF Shadow D4000-D7FFF Shadow D8000-DBFFF Shadow DC000-CFFFF Shadow :Move Enter:Select F5:Previous Values Disabled Enabled Enabled Enabled Disabled Floppy HDD-0 LS120 Enabled Disabled Enabled On Fast Disabled 6 250 Setup 1. 1 Non-OS2 Enabled Disabled Disabled Disabled Disabled Disabled Disabled v Item Help Menu Level Allows you to choose the VIRUS warning feature for IDE Hard Disk boot sector protection. If this function is enabled and someone attempts to write data into this area, BIOS will show a warning message on screen and alarm beep +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help F6:Fail-Safe Defaults F7:Optimized Defaults Virus Warning When enabled, you receive a warning message if a program (specifically, a virus) attempts to write to the boot sector or the partition table of the hard disk drive. You should then run an anti-virus program. Keep in mind that this feature protects only the boot sector, not the entire hard drive. Note: Many disk diagnostic programs that access the boot sector table can trigger the virus warning message. If you plan to run such a program, we recommend that you first disable the virus warning. CPU Internal Cache/External Cache Cache memory is additional memory that is much faster than conventional DRAM (system memory). CPUs from 486-type on up contain internal cache http://www. tyan. com 40 w v memory, and most, but not all, modern PCs have additional (external) cache memory. [. . . ] SRAM Static RAM, unlike DRAM, does not need to be refreshed in order to prevent data loss. In Standby mode, the video and fixed disk drive shut down; all other devices operate normally. UltraDMA/66 is a fast version of the old DMA channel. Without UltraDMA your system cannot take advantage of the higher data transmission rates of the new UltraATA hard drives. [. . . ]