Acer Power ST Aspire T300 Service Guide - Page 37

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 Auto audio device. 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 USB Controller This item is used to enable or disable the on-chip Enabled USB. Disabled Chapter 2 31