Mach Speed Technologies NF4-A9A Manual page 55

NF4-A9A / NF4 Ultra-A9A
IDE HDD Block Mode
Block mode is also called block transfer, multiple commands, or multiple sector
read / write. If your IDE hard drive supports block mode (most new drives do),
select Enabled for automatic detection of the optimal number of block mode (most
new drives do), select Enabled for automatic detection of the optimal number of
block read / write per sector where the drive can support.
The Choices: Enabled (default), Disabled.
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