When nothing else works on your Windows 10 computer, you can try to open the UEFI blue screen by repeatedly and quickly turning the computer on and off using the power button. Begin typing your search term above and press enter to search.
Press ESC to cancel. Ben Davis June 2, Is it safe to change BIOS settings? What happen if BIOS corrupt? How do I reset my boot settings? What are the 3 common keys used to access the BIOS? Why do I have to press F2 on startup? With this technology, a small lithium or Ni-Cad battery can supply enough power to keep the data for years.
In fact, some of the newer chips have a year, tiny lithium battery built right into the CMOS chip! Sign up for our Newsletter! Mobile Newsletter banner close.
Mobile Newsletter chat close. Mobile Newsletter chat dots. Mobile Newsletter chat avatar. Mobile Newsletter chat subscribe. The bus speed is the tricky part because vendors may set it either at the natural clock rate or at the enhanced clock rate. The natural front side bus is the more common of the two. The multiplier is then used to determine the final clock speed based on the bus speed of the processor. Set this to the appropriate multiple for the final clock speed of the processor.
Another aspect of the BIOS that can be adjusted is the memory timings. Boot order is the most important adjustable setting in the BIOS. The boot order determines the order in which the computer will boot to each device to look for an operating system or installer.
The options typically include the hard drive , optical disk drive , USB and network. The standard order at first startup is the hard drive, optical drive, and then USB. This means that the computer will look for an OS on the hard drive first, and then look for bootable media on a disc, and then finally search for something on any plugged in USB devices. Adjusting the boot order is important when you're installing a new operating system or booting to a device other than your hard drive.
You have to change the order of the boot devices so that the one you want to boot to is listed before any other bootable device. For example, if you already have an operating system on the hard drive but you want to boot to a bootable antivirus program instead, you have to first change the boot order so that the disc drive is listed before the HDD.
When you restart your computer , the optical drive will be searched first — in this case, the antivirus program will start instead of the hard drive's operating system.
With the advances made by the SATA interface, drive settings are only adjusted when you're planning to use several drives in a RAID array or using it for Intel Smart Response caching with a small solid-state drive.
You'll then need to create the array of drives using the BIOS from the hard drive controller specific to the motherboard or computer system. On some rare occasions, the computer might not properly POST or boot. A series of beeps generated by the motherboard indicates a diagnostic code, which may require resetting a specific part of the motherboard called the CMOS. An error message might display on the screen with more modern UEFI-based systems.
Pay close attention to the number and types of beeps and then refer to the motherboard manual for what the codes mean. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content.
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