Acer Power SP, Service Manual

Page: 33 / 72

Chapter 2 27
Integrated Peripherals
The following table describes each Integrated Peripherals parameters. Settings in boldface are the default
and suggested values.
Parameter Description Options
Internal PCI/IDE This setting enables or disables the internal
primary and secondary PCI & IDE controllers. Both , Disabled, Primary,
Secondary
IDE Primary Master PIO
IDE Primary Slave PIO
IDE Secondary Master PIO
IDE Secondary Slave PIO Setting these items to “Auto” activates the HDD
speed auto-detect function. The PIO mode
specifies the data transfer rate of the HDD. For
example, mode 0 data transfer rate is 3.3MB/s,
mode 1 is 5.2 MB/s, mode 2 is 8.3MB/s, mode 3
is 11.1 MB/s and mode 4 is 16.6MB/s. If your
hard disk performance becomes unstable, you
may manually try the slower mode. Auto, mode 1, mode 2, mode 3
and mode 4
Primary Master UltraDMA
Primary Salve UltraDMA
Secondary Master UltraDMA
Secondary Slave UltraDMA These items allow you to set the Ultra DMA 33/
66/100 mode supported by the hard disk drive
connected to your primary and secondary IDE
connectors. Auto
Disables
IDE Burst Mode This allows your hard disk controller to use the
fast block mode to transfer data to and from the
hard disk drive. Enabled
Disabled
AC97 Audio Enabling the on-die AC97 Auto if no add-on PCI
audio device. Auto
Disabled
System Share Memory Size For SiS650 chipset, the system shares memory
to the onboard VGA card. This setting controls
the exact memory size shared to the VGA card. 4, 8, 16, 32 , 64MB