ASUS Z170-K User Manual

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• 
ASUS EZ Flash 3 supports USB devices, such as a USB flash disk, with FAT 32/16 
format and single partition only.
• 
DO NOT shut down or reset the system while updating the BIOS to prevent system 
boot failure!.
2.1.3 
ASUS CrashFree BIOS 3 utility
The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS file 
when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS 
file using the motherboard support DVD or a USB flash drive that contains the updated BIOS 
file.
• 
Before using this utility, rename the BIOS file in the removable device into Z170K.
CAP
.
• 
The BIOS file in the support DVD may not be the latest version. Download the latest 
BIOS file from the ASUS website at www.asus.com.
Recovering the BIOS
To recover the BIOS:
1. 
Turn on the system.
2. 
Insert the support DVD to the optical drive or the USB flash drive that contains the 
BIOS file to the USB port.
3. 
The utility automatically checks the devices for the BIOS file. When found, the utility 
reads the BIOS file and enters ASUS EZ Flash 3 utility automatically.
4. 
The system requires you to enter BIOS Setup to recover BIOS settings. To ensure 
system compatibility and stability, we recommend that you press <F5> to load default 
BIOS values.
DO NOT shut down or reset the system while updating the BIOS! Doing so can cause 
system boot failure!
2.1.4 
ASUS BIOS Updater
ASUS BIOS Updater allows you to update the BIOS in DOS environment. 
The screen captures used in this section are for reference only and may not be exactly the 
same as actually shown on your computer screen.
Before updating BIOS 
• 
Prepare the motherboard support DVD and a USB flash drive.
• 
Download the latest BIOS file and BIOS Updater from http://support.asus.com and 
save them in your USB flash drive.
ASUS Z170-K
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