Enhanced Ide Features - IBM Aptiva Series Hardware Maintenance

Enhanced IDE Features

Hard disk block mode
This function enhances disk performance depending on the hard disk in use.
BIOS automatically detects if your hard disk supports this feature.
Setting to Auto allows data transfer in blocks (multiple sectors) to increase the
data transfer rate. If your system does not boot after setting this parameter to
Auto, change the setting to Disabled. The default setting for this parameter is
Auto.
Advanced PIO mode
Enabling this parameter improves system performance by allowing the use of
faster hard drives. If your hard disk does not support this function, set this
parameter to Disabled. The default is Auto.
Large hard disk support
This enhance IDE feature works only under DOS and Windows 3.1x
environments. If enabled, it allows you to use a hard disk with a capacity of
more than 504MB. This is made possible through the Logical block address
(LBA) mode translation. Other operating systems require this parameter to be
set to Disabled.
To prevent data loss, set this parameter to Auto if you are using a hard disk
with more than 504MB capacity that was previously configured through the
LBA mode. If you use a hard disk configured through the user-specific
cylinder-head-sector (CHS) mode, set this parameter to Disabled.
Hard disk 32-bit access
Setting this parameter to Auto improves system performance by allowing the
use of the 32-bit hard disk access. This enhanced IDE feature only works
under DOS, Windows 3.x, Windows 95, and Novell NetWare. If your software
does not support this function, set this parameter to Disabled. The default
setting is Auto.
Changing devices and I/O port configurations
From the Setup Utility Main Menu, select the Devices and I/O Ports option to
view or change port configuration settings. The Devices and I/O Ports menu
appears. This menu lets you configure serial and parallel ports.
Also included in this menu are items for enabling or disabling the onboard
audio chip and the keyboard numeric lock.
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