Graphics card bios doesn't support uefi boot what does it look like?

What the hell is UEFI boot about me? Now the new computer almost all support this function, many partners were confused, this thing still need to be set up, the installation of the boot disk also need special treatment. But with all these drawbacks, UEFI still has its attractions, the most important of which is that the boot time is drastically reduced. Yesterday, a small partner comment section message to figure out what this UEFI actually is the reason, so today we will talk about it.

Why is UEFI so fast?

UEFI, compared to traditional boot methods, is a way of "skipping" the self-testing process at startup, so it's a lot faster. The so-called traditional boot method is now called Legacy, and some of you may have been in the BIOS, and in addition to UEFI, there is also a Legacy mode on the boot menu.

UEFI in addition to the boot convenience, there is a maximum visible features is UEFI support for graphical operation, many partners may also find that many of the BIOS is now a graphical interface, and support for the mouse operation, which is not possible in the traditional BIOS. After switching to UEFI mode, the system boot also changes, especially for those who want to realize UEFI+GPT boot, you have to do this step first.

How to get forced legacy mode?

Some people just don't like UEFI, or have to use the traditional BIOS boot mode Legacy, so beware. When switching to Legacy in a BIOS with UEFI, it's a good idea to enable an option called CSM, which is a compatibility module that is designed to be compatible with devices that can only work in LEGACY mode, as well as operating systems that don't support, or can't fully support, UEFI (older graphics cards, older devices). As a tip, the BIOS options Enable is on, Disabled is off.

Correctly selecting the boot method

When setting up the boot, the BIOS with UEFI also provides boot options for choosing which mode to boot into. Currently, motherboards are set up in three modes: Auto, UEFI, and Legacy.

Auto/Both: Automatically boots in the order of the boot device list, with priority given to the UEFI method;

UEFI only: Selects to boot only the devices that are eligible for UEFI booting;

Legacy only: Selects to boot only the devices that are eligible for UEFI booting;

These options are available only in the UEFI-enabled mode. Legacy only (only Legacy): only select devices with Legacy boot conditions to boot.

This option is usually found in the BIOS base or boot settings, and is different for each manufacturer, so you'll need to look for it on your own. I recommend, try not to choose the automatic mode, because after determining their own boot mode, the U disk used to install the system, and even hard disk boot to match. So it is best to fix into what you need, Legacy is the most traditional mode, UEFI is the new boot mode, so that you can complete the function of UEFI, or use Legacy to pursue maximum compatibility.