Refresh BIOS settings most commonly used

Refreshes the BIOS most commonly used BIOS settings





to refresh the motherboard BIOS program (hereinafter referred to as: Flash BIOS), for the veteran is the most enjoyable thing to do, the refresh of the BIOS often means that the motherboard can support more CPU and features increased, performance enhancements and compatibility improvement. But for many beginners, refreshing the BIOS is still more mysterious, and even hesitant to worry about damaging the BIOS. In addition, for some of the most commonly used BIOS settings, many beginners are also a smattering. This time we will do a full understanding of the BIOS, so that it is no longer mysterious.




The
BIOS is an abbreviation of "Basic Input Output system" in English, the literal translation is the meaning of the "basically inputs and outputs systems", its full name should be Rom-bios, meaning is read-only memory basic input and output system. In fact, it is a group of curing to the computer motherboard in the previous ROM chip program, it holds the most important computer basic input and output of the program, system settings information, power-on on the Self-Test program and the system to start the bootstrap process.





Some people think that since the BIOS is "program", it should belong to the software, it feels like a common word or Excel. In fact, the BIOS program and the general software there is a big difference, and it is closely related to the hardware. Figuratively speaking, the BIOS should be connected to the software program and hardware equipment, a "bridge", responsible for solving the hardware's immediate requirements the BIOS chip on the motherboard may be the only labeled chip on the motherboard, which is typically a 32-pin dual-row inline integrated circuit with the word "BIOS" printed on it. The BIOS for SOCKET7 and earlier motherboards are most rewritable EPROM chips, which play a role in protecting the contents of the BIOS (which can be lost by ultraviolet radiation) and cannot be torn off at random. Socket 370 era after the use of Rom-bios more EEPROM (electric erasable read-only ROM), through the jumper switch and system with the program can be used to rewrite the EEPROM, easy to achieve BIOS upgrades. The common BIOS chip has award, AMI, Phoenix, Mr and so on, on the chip all can see the manufacturer's mark.





Small knowledge: The role of the BIOS program in the entire system is very important. First, it is used to complete the system self-test, initialization program, search drive, read into the operating system boot record, and then the system control to the boot record, the boot record to complete the system start. Second, it is also used to receive the hardware use commands from the system, command hardware to complete the work.





the BIOS refresh process




The essence of the
Flash BIOS upgrade is to replace the contents of the older version of the BIOS chip with the updated version with the help of a BIOS eraser program. The specific methods are as follows:





1. Older motherboards have a flash ROM jumper switch to set the BIOS's read/write status. After shutdown, locate it on the motherboard and set it to writable (enable or write), BIOS write protection jumper. Newer motherboards can set the BIOS in the BIOS program to be writable, please refer to the motherboard's manual for details.





2. First boot into the BIOS Setup screen, and in the CMOS chipset FEATURE setup option, disable the system BIOS cacheable and video BIOS cacheable (otherwise causing some trouble). Some motherboards can skip this step.





3. Reboot the machine so that the hard drive is booted in a DOS manner and avoids loading any programs that may reside in memory. It is recommended that you make a clean system boot disk that does not contain Config.sys and Autoexec.bat two files, and copy the erase program and the new BIOS file you are preparing to write to a floppy disk, and then boot the system directly from the floppy drive.





4. After booting the system successfully, enter the following command for BIOS upgrades:





Awdflash (for use in award company BIOS)





Amiflash (for use with AMI company BIOS)





Mrflash (for Mr Company's BIOS)





When the BIOS erase program is running, the system will remind you to enter a new version of the BIOS file name. However, before refreshing, the erase program will also require the current BIOS to be saved, and it is recommended that you save it on a floppy disk and remember the file name so that you can restore the original BIOS version in the future if you find a problem with the upgraded BIOS. Then the eraser will let the user again determine whether or not to overwrite the contents of the BIOS, the answer "Y" After the BIOS upgrade officially began, at this time should be able to see a shiny small square non-stop extension length. The final rewrite is complete, and the eraser program prompts you to reboot the machine. In addition, there are some BIOS erasure programs that must be run in a command mode, such as:





Amiflash 2005.ROM





in this case, "2005.ROM" is the firmware for the BIOS because it is in the same directory as the erase program, so there is no need to enter a path. In this way, the entire BIOS upgrade process is complete.





Warning: When upgrading the BIOS, never allow power outages, if available, it is best to use an online ups to power the host. Failure of the BIOS upgrade will cause the computer to not start properly!





5. Processing
after failed to refresh bios




when the bios of the motherboard is not successful and fails to open, you can try the following methods to repair it:





(1) using the bootstrap block in the BIOS





Many award BIOS based motherboards have a bootstrap block, which is part of the motherboard BIOS and will not be overwritten when the BIOS is erased. The bootstrap blocks only support the video card of the floppy and ISA protocols, and can perform the AUTOEXEC on the boot floppy. BAT file, you can use the bootstrap block to restore a failed BIOS chip. However, the ISA era is long gone, so this method only applies to older motherboards with an Isa slot.





(2) Hot-swappable





Look for the same motherboard, remove the BIOS chip that works on the motherboard and replace it with your motherboard, and boot to DOS via a floppy disk or hard drive. When the host is charged, remove the normal working BIOS chip and swap the BIOS chip that failed the upgrade to the motherboard. Finally, write a correct BIOS version to the BIOS chip and reboot the machine.





small knowledge: Hot plug operation can be charged in the case of the host without damaging the hardware because the computer after the normal boot, the BIOS program has been loaded into memory, program access to the BIOS program is actually in access to memory, the BIOS chip is temporarily not read and write state.





(3) BIOS programmer





Many computer cities have specialized BIOS write device--bios programmer, please business for you to rewrite the BIOS, also only need to spend more than 20 yuan, convenient and affordable.





the most commonly used BIOS settings





after updating the BIOS, the original settings options will all be changed back to the default values, it is necessary to reset the BIOS parameters to allow the system to work in the best state. After the boot press del key or F1 function key into the main BIOS menu (some brand machine may be other function keys), at this point we need to focus on the CPU and graphics card settings.





1. CPU Setting





CPU is the key to play the overall performance of the system, if the full use of the BIOS in the CPU optimization options, then the entire machine can be upgraded to a grade. Conversely, if improperly set, CPU performance will be greatly compromised. First of all, we should focus on the CPU L2 Cache, here must ensure that the function is turned on, or CPU performance will be seriously reduced.





2. Graphics card Settings





If you are a fan of the 3D game, then the BIOS for the AGP video card settings must not let go. Currently, the mainstream graphics card has already supported the AGP 8x, it can improve the performance of the video card effectively, so we strongly recommend that you open the AGP 8x working mode in the BIOS. For an integrated motherboard, it is important to set the memory capacity for its built-in video card, which is generally the name of the VGA Share Memory size or other similar name. Since shared video memory also takes up our ram, we recommend weighing the pros and cons. Generally only 256MB of memory users set to 16MB~32MB, and more than 512MB of memory users can be set to 64MB.





3. Turn off unwanted options




There are a lot of features in the
BIOS that we can't use at all, and opening them can actually degrade the system's performance or cause us unnecessary trouble. Virus warning is used early to deal with the ability to modify the boot area virus, but it is useless for the current new virus, and will be false when installing the operating system, so this "chicken" function can be turned off. In order to accommodate the needs of DOS applications, many motherboard BIOS still has built-in mapping memory addressing (Memory Shadow). If you do not use DOS, then you can set it to disable, which can save system resources. In addition, if the parallel port, serial port, SATA interface does not connect the device or do not need to use the onboard sound card and other functions, the corresponding port and equipment can be closed.