User manual ABIT IT5

[. . . ] Table of Contents Chapter 1 Introduction of IT5 Series Features ¬ IT5V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 l Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 l Layout diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 l System block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] ä LARGE Mode: When the number of cylinders (CYLs) of the hard disk exceeds 1024 and DOS is not able to support it, or if your operating system does not support LBA mode, you should select this mode. l FDD supporting 3 Mode: 3 Mode floppy disk drives (FDD) are 3 1/2" drives used in Japanese computer systems. If you need to access data stored in this kind of floppy, you must select this mode, and of course you must have a 3 Mode floppy drive. 2 For further information about HDD installation, refer to Appendix E. Introduction of BIOS 3-13 ® BIOS Features Setup Menu BIOS Features Setup Menu has already been set for maximum operation. If you do not really understand each of the options in this menu, we recommend you use default values. In each item, you can press <F1> at any time to display all the options for this item. ROM PCI/ISA BIOS (XXXXXXXX) BIOS FEATURES SETUP AWARD SOFTWARE, INC. Virus Warning CPU Internal Cache External Cache Quick Power on Self Test Boot Sequence Swap Floppy Drive Boot Up Floppy Se ek Boot Up NumLock Status IDE HDD Block Mode Typematic Rate Setting Typematic Rate(Chars/Sec) Typematic Delay (Msec) Security Option PCI/VGA Palette Snoop OS Select For DRAM > 64MB : Disabled : Enabled : Enabled : Enabled : A, C, SCSI : Disabled : Disabled : On : Enabled : Enabled : 30 : 250 : Setup : Disabled : Non-OS2 Video BIOS Shadow C8000-CBFFF Shadow CC000-CFFFF Shadow D0000-D3FFF Shadow D4000-D7FFF Shadow D8000-DBFFF Shadow DC000-DFFFF Shadow : Enabled : Disabled : Disabled : Disabled : Disabled : Disabled : Disabled Esc : Quit F1 : Help F5 : Old Values F6 : Load BIOS Defaults F7 : Load Setup Defaults ¡ô¡õ¡÷¡ö : Select Item PU/PD/+/- : Modify (Shift)F2 : Color Fig 3-3 BIOS Features Setup Virus Warning: This item can be set as Enable or Disable. When this feature is enabled, if there is any attempt from a software or an application to access the boot sector or the partition table, the BIOS will warn you that a boot virus is attempting to access to the hard disk. 3-14 Chapter 3 CPU Internal Cache: This item is used to Enable or to Disable the CPU internal cache. When the cache is set at Disable, it is much slower, so the default setting for this item is Enable. Some old and very bad programs will make the computer malfunction or crash if the system speed is to high. In that case, you should Disable this feature. CPU External Cache: This item is used to enable or to disable the CPU external cache. When the external cache is enabled, the system works faster. The default is Enable. Quick power on self test: After the computer has been powered on, the BIOS of the mainboard will run a series of tests in order to check the system and its peripherals. If the Quick power on self test feature is Enable, the BIOS will simplify the test procedures in order to speed up the boot process. The default is Enable. Boot Sequence: When the computer boots up, it can load the operating system from floppy drive A:, hard disk drive C:, SCSI disk drive or CD-ROM. There are many options for the boot sequence: OE A, C, SCSI · C, A, SCSI Z C, CD-ROM, A · CD-ROM, C, A · D, A, SCSI (at least 2 IDE HDD can be used) ` E, A, SCSI (at least 3 IDE HDD can be used) ' F, A, SCSI (at least 4 IDE HDD can be used) " SCSI, A, C Ò SCSI, C, A Ó A, SCSI, C Swap Floppy Drive: This item can be set as Enable or Disable. When this feature is enabled, you don' need to open the computer case t to swap the position of floppy disk drive connectors. Drive A: can be set Introduction of BIOS as drive B:, and drive B: can be set as drive A:. 3-15 3-16 Chapter 3 Boot Up Floppy Seek: When computer boots up, the BIOS detects if the system has FDD or not. When this item is enabled, if the BIOS detects no floppy drive, it will display a floppy disk drive error message. If this item is disabled, the BIOS will skip this test. Boot Up NumLock Status: ä On: At boot up, the Numeric Keypad is in numeric mode. ä Off: At boot up, the Numeric Keypad is in cursor control mode. IDE HDD Block Mode: This item can be set as Enable or Disable. Most of new hard disk drives (IDE drives) support multi-sector transfers. This feature speeds up hard disk drive access performance and reduces the time necessary to access data. [. . . ] OS/APPLICATION: Indicate what are the operating system and the applications your are running on the system. Example: MS-DOS 6. 22, Windows 3. 1. . . . *6. CPU: Indicate the brand and the speed (MHz) of your CPU. Example: (A) In the "Brand" space, write "Intel", in the "Specifications" space, write "150MHz"¡C (B) In the "Brand" space, write "Cyrix", in the "Specifications" space, write "P166+"¡C (C) In the "Brand" space, write "AMD", in the "Specifications" space, write "P75". 7. HDD: Indicate the brand and specifications of your HDD(s), specify if the HDD is using ¨IDE1 or ¨IDE2. [. . . ]