Integrated Peripherals - Mitsubishi Electric CM33-TL User Manual

3 AWARD BIOS SETUP UTILITY

Integrated Peripherals

The screen above lists all the fields available in the Integrated Peripherals
submenu for you to reference. In the actual CMOS setup, you must scroll to
view all of the fields. The settings on the screen are for reference only — your
version may not be identical to this one.
On-Chip Primary IDE and On-Chip Secondary IDE
These fields allow you to enable or disable the primary and secondary IDE
controller. The default is Enabled. Select Disabled if you want to add a differ-
ent hard drive controller.
IDE Prefetch Mode
This allows data and addresses to be stored in the internal buffer of the chip,
thus reducing access time. Enable this field to achieve better performance.
IDE Primary Master/Slave PIO and IDE Secondary Master/Slave PIO
PIO means Programmed Input/Output. Rather than have the BIOS issue a
series of commands to effect a transfer to or from the disk drive, PIO allows the
BIOS to tell the controller what it wants and then let the controller and the CPU
perform the complete task by themselves. Your system supports five modes, 0
(default) to 4, which primarily differ in timing. When Auto is selected, the BIOS
will select the best available mode after checking your drive.
26 MC Series Computer Products MAN-0CM33-001