Acer Aspire M1640 Service Manual page 40

Parameter
IDE HDD Block
Mode
SATA PORT
Speed Settings
Integrated Peripherals-Onboard Device
Setup
Description
Block mode is also called block transfer, multiple
commands, or multiple sectors 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 read/write per sector the drive can
support.
This category allows you to determine the speed of
SATA port.
Options
[Enabled],
[Disabled]
[Auto],
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