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Presentation 29 – The ROM/BIOS. Objectives. At the end of this presentation, you will be able to:. Check the BIOS firmware level. Describe when a BIOS firmware upgrade should be performed. Update the BIOS. Explain how to recover from a failed flash BIOS attempt. The ROM/BIOS.

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objectives
Objectives

At the end of this presentation, you will be able to:

slide3
Check the BIOS firmware level.
  • Describe when a BIOS firmware upgrade should be performed.
  • Update the BIOS.
  • Explain how to recover from a failed flash BIOS attempt.
setup vs bios vs cmos
Setup vs. BIOS vs. CMOS

Setup is a program that controls settings in the BIOS, which are stored on a device manufactured with CMOS technology.

slide10
CMOS has its own battery so that the configuration information will not be lost when the computer is turned off or during a power failure.
bios suppliers
BIOS Suppliers
  • Award
  • American Megatrends (AMI)
  • Phoenix
slide12

STANDARD CMOS SETUP

BIOS FEATURES SETUP

CHIPSET FEATURES SETUP

POWER MANAGEMENT SETUP

PNP/PCI CONFIGURATION

LOAD SETUP DEFAULTS

LOAD BIOS DEFAULTS

INTEGRATED PERIPHERALS

SUPERVISOR PASSWORD

USER PASSWORD

IDE HDD AUTO DETECTION

SAVE & EXIT SETUP

EXIT WITHOUT SAVING

ESC : QUIT  : Select Item

F10 : SAVE & EXIT SETUP (Shift)F2:Change Color

Time, Date, Hard Disk Type ...

ROM PCI/ISA BIOS (2A69KS2C)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

slide13

Date (mm:dd:yy) : Wed, May 12 1999

Time (hh:mm:ss) : 11:33: 24

HARD DISKS TYPE SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE

Pri Master: Auto 0 0 0 0 0 0 AUTO

Pri Slave : None 0 0 0 0 0 0 -----

Sec Master: None 0 0 0 0 0 0 -----

Sec Slave : None 0 0 0 0 0 0 -----

Drive A: 1.44M, 3.5 in.

Drive B: None

Floppy 3 Mode Support: Disabled

Video : EGA/VGA

Halt On : All Errors

Base Memory : 640K

Ext Memory : 31744K

Other Memory: 384K

Total Memory 32768K

ESC:Quit  : Select Item PU/PD/+/-: Modify

F1 :Help (Shift)F2 : Change Color

STANDARD CMOS SETUP

slide14

Setup

Security

17

Standard

Advanced

Chipset

Supervisor

User

Power Mgmt

Peripheral

PCI/PnP

Anti-Virus

Utility

Default

Color Set

Language

Original

Optimal

Turbo

American

Megatrends

AMIBIOS Setup

(C)1996, American Megatrends Inc.

14

slide15

Phoenix SETUP Utility (Version 1.00) 01

MainAdvanced Security Power Boot Exit

Item Specific Help

BIOS Version 4S4EBOX1.10A.0028.P11 (All)

Processor Type Pentium II Processor

Processor Speed 350 MHz

Cache RAM 512 KB

Service Tag J6XXX

System Memory 192 MB

Memory Bank 0 32 MB SDRAM

Memory Bank 1 32 MB SDRAM

Memory Bank 2 128 MB SDRAM

Language: [English (US)]

L2 Cache ECC Support:[Auto]

System Time: [16:54:53]

System Date: [04/27/1999]

Enabling L2 Cache ECC Support allows error checking to occur on data accessed from the L2 cache.

When this option is disabled, error checking is not performed.

When set to Auto, the state of the L2 ECC cache will follow the state of the ECC DRAM.

F1 Help  Select Item -/+ Change Values F9 Setup Defaults

Esc Exit  Select Menu Enter Select Sub Menu F10 Save and Exit

Menu

award bios1
Award BIOS…

…inside an Intel device.

when do you update bios
When Do You Update BIOS?
  • Solve a problem or add capability
  • Adding a new piece of hardware
where do you find the bios update
Where do you find the BIOS update?
  • Check the server manufacturer’s website
  • Check the motherboard manufacturer’s website
  • Download from computer manufacturer or motherboard vendor
  • “Flash” to upgrade
flash bios
Flash BIOS
  • In computers built after 1996, BIOS is in a flash ROM.
  • A flash ROM can be erased and rewritten right in the system without removing the ROM.
  • BIOS upgrades are available from the computer or motherboard manufacturer’s website.
  • Upgrades can be downloaded and “flashed” into the ROM.
elements to be downloaded
Elements to be downloaded:
  • BIOS Update – Updates are periodically developed to correct known problems, enhance functionality, or to include new technology.
  • Upgrade Utility – A special program with which you can flash the new BIOS into ROM.
1 save your cmos ram setup configuration
1. Save your CMOS RAM Setup Configuration.
  • Enter Setup.
  • Record the BIOS Version Number.
  • Write down (or print out) the CMOS settings.
  • Make certain you save the information for all screens.
2 create a bootable floppy disk
2. Create a bootable floppy disk.
  • Go to the DOS prompt
  • Insert diskette in floppy drive
  • Type:

FORMAT A: /S

4 boot from the floppy
4. Boot from the floppy
  • It may be necessary to reset the boot sequence in Setup so that the system will boot from the floppy.
  • Then boot from the floppy disk.
  • The flash utility should automatically run.
5 save a copy of the current bios
5. Save a copy of the current BIOS
  • Most flash utilities will give you this option.
  • You will need the current BIOS if for some reason the new one causes some unforeseen problem.
6 update the flash rom
6. Update the Flash ROM
  • Select the command.
  • Select the BIOS image.
  • Note the warning.
  • Execute the command.
  • The operation may take several minutes.
  • Allow the operation to finish.
8 in setup
8. In Setup:
  • Check the new BIOS Version Number to insure that the update has been successful.
  • Load the default values for CMOS.
  • Re-enter unique settings from the CMOS list you recorded earlier.
  • Save the settings.
option 2 the bios recovery procedure
Option 2. The BIOS Recovery Procedure
  • The flash ROM has a small un-erasable section that holds an emergency BIOS recovery routine.
  • Recovery/Normal Jumper.
the bios recovery procedure
The BIOS Recovery Procedure
  • Move the jumper to the Recovery Mode.
  • Insert the bootable disk you created earlier into drive A and boot the system.
  • The routine should run automatically and get you back to a point where you can at least boot the system.
  • Move the jumper back to the Normal mode.
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