Tuesday, June 2, 2015

Explained: The optimal configuration of UEFI and BIOS – Virtual Poland


  Before running the operating system, Personal Computer guided by the BIOS or UEFI. At this stage – beyond changing settings – we can not do much. Typically, he never engaged. We reach for UEFI BIOS or only when the system does not work as expected or when you want – eg. At the end of producer support for Windows XP – install a new operating system. How to go about it?
 

 Key Sections to which we need to reach, usually specific configuration of the processor, RAM, and chipset (responsible for displaying graphics and audio playback), as well as options to boot. UEFI design is completely different than his predecessor BIOS, but from the point of view of the user the differences are slight. The most draws attention to optics: BIOS (Basic Input / Output System) offers the most intricate, text straight-forward, while UEFI (Unified Extensible Firmware Interface) can be controlled via a graphical interface using the mouse.
 

 UEFI addition to the functions BIOS also has a compatibility mode with the BIOS, and the option of “Secure Boot”, which together with Windows 8 or a compatible Linux protects your computer from dangerous rootkits. More modern PCs UEFI firmware offers improved hardware management. With its help we can for example. Create partitions on the disk, manage the process of starting a computer, as well as handle disks with a capacity exceeding two terabytes. UEFI also provides the ability to turn your computer through the network, and remotely modify the boot parameters which determine the operating system is running.
 

  How to get to the BIOS?
 

 To access the configuration options BIOS or UEFI, we must observe during the bootup messages displayed on the screen. Most often, depending on the system and type of computer, just press [F2], [F8] or [Del]. Some notebooks are equipped with special hardware buttons, allowing the configuration window displays the BIOS or UEFI. Most manufacturers of motherboards and desktops puts on firmware American Megatrends (AMI), resulting configuration – despite various optical systems, and other signs – often are similar, regardless of the model motherboard. The most important markings and shortcuts compiled in the box below.
 

  Perfect Setup
 

 The system will run fast and stable only if the basic parameters of the BIOS / UEFI is correct. For devices with UEFI default settings are usually correct, but for older motherboards with BIOS may be required to make changes to the configuration.
 

  1. CPU and RAM: check the timing
 

 To find out whether your CPU and RAM operating at optimal pace, run Windows programs CPU-Z (www.cpuid.com) and Prime95 (www.mersenne.org/download). In Prime95 choose successively »Options | Torture Test | OK” to charge up the processor. Then we control that displays the frequency of the program in the section »CPU | Clocks | Core Speed” and whether it agrees with the nominal frequency. If the CPU-Z does not display the nominal frequency index, check this information in the ark.intel.com/pl or products.amd.com. The current memory clock frequency is specified in the application window CPU-Z on the “Memory” in “DRAM Frequency”. Visible at this point we need to redouble parameter for the most commonly used DDR memory. In the “SPD” are nominal data defining the performance of RAM. When we checked the CPU clock frequency and RAM seem too low, the next step we ensure that we can make changes in the BIOS or UEFI.
 

  2. We set the clock frequency of the CPU and RAM
 

 Restart the computer and call the BIOS / UEFI. We are searching for options to determine the clock frequency for the CPU and RAM. In the case of motherboards Asus appropriate options can be found in the menu “Al Tweaker”. The greatest stability of your computer that you set all values ​​to “Auto”.
 

  3. Configure the components of the motherboard
 

 Through BIOS / UEFI setup the parameters of computer components, including the drive controller, which in devices with BIOS is most often incorrect default – instead of tybu “IDE”, for optimum performance should select “AHCI” (although some systems Live – eg. to create partitions – need settings “IDE”). In the case of a motherboard with the AMI BIOS we make the choice, pointing to the menu »Configuration | Configure SATA as«, UEFI menu, click “Advanced | SATA Configuration”. Unused components such as Firewire, COM, LPT ports, you can deactivate in the BIOS UEFI, select “Advanced | Onboard devices configuration”.
 

  4. Specialty UEFI Secure Boot
 

 On computers with Windows 8 UEFI OEM configuration interferes with the installation of another operating system and start-Live-DVD systems. To get rid of this blockade, we change the menu UEFI »Boot | CSM« option »Launch CSM” to “Enabled”. Activating the CSM will make the UEFI will behave in relation to the operating system as a normal BIOS. The option “Secure Boot”, which thwarts attacks rootkits, it is not going to work.
 

  – READ MORE –
 
 

  See also: New US military helicopter. Better than all the others!
 

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