PC 815
3
User
’
s
Manual
42
Phoeni
x
-Award B
I
OS Utility
On-Chip
IDE
Device
Scroll
to
this
item
and
press
<Enter>
to
view
the
sub
menu
On-Chip
IDE
Device.
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
read/writes
per
sector
the
drive
can
support.
IDE
DMA
transfer
access
Automatic
data
transfer
between
system
memory
and
IDE
device
with
minimum
CPU
intervention.
This
improves
data
throughput
and
frees
CPU
to
perform
other
tasks.
On-Chip
Primary/Secondary
PCI
IDE
The
integrated
peripheral
controller
contains
an
IDE
interface
with
support
for
two
IDE
channels.
Select
Enabled
to
activate
each
channel
separately.
The
default
value
is
“Enabled”.
NOTE
Choosing
Disabled
for
these
options
will automatically
remove
the
IDE
primary Master/Slave
PIO
and/or
IDE
Secondary