User Guide
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Open 
A 
Sector 
This parameter specifies the number of sectors of your hard disk, and is automatically set 
depending on your Type parameter setting. 
Size 
This parameter specifies the size of your hard disk, in MB.   
2.4.4 Hard Disk LBA Mode 
Hard Disk Block 
Mode 
Auto (Default) 
Disabled 
This function enhances disk performance depending on the hard disk in 
use. If you set this parameter to “Auto”, the BIOS utility automatically 
detects if the installed hard disk drive supports the Block Mode function. 
If supported, it allows data transfer in blocks (multiple sectors) at a rate 
of 256 bytes per cycle. To disregard the feature, change the setting to 
“Disable”. 










