CP302
CMOS Setup
ID 21112, Rev. 05
Page 4 - 27
®
PEP Modular Computers GmbH
EIDE 32-bit Transfer Mode
Enables or disables 32-bit Data transfers.
On-Chip PCI EIDE (Primary/Secondary)
The Intel
82C440BX chipset contains a PCI EIDE interface with support for two EIDE
channels. Select Enabled to activate the primary and/or secondary EIDE interface.
Select Disabled to deactivate this interface if you instal a primary and/or secondary add-
in EIDE interface.
EIDE PIO Modes (Primary/Secondary Master/Slave)
The four EIDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-4) for
each of up to four EIDE devices that the internal PCI EIDE interface supports. Modes 0
through 4 provide successively increased performance. In Auto mode, the system
automatically determines the best mode for each device.
EIDE Primary/Secondary Master/Slave UDMA
UDMA (Ultra DMA) is a DMA data transfer protocol that utilizes ATA commands and the
ATA bus to allow DMA commands to transfer data at a maximum burst rate of 33 MB/s.
When you select Auto in the four EIDE UDMA fields (for each of up to four EIDE devices
that the internal PCI EIDE interface supports), the system automatically determines the
optimal data transfer rate for each EIDE device.
USB Keyboard Support
Select Enabled if your system contains a Universal Serial Bus (USB) controller and you
have a USB keyboard.
Init Display First
Initialize the AGP video display before initializing any other display device on the
system. Thus the AGP display becomes the primary display.
Onboard FDC Controller
Select Enabled if your system has a floppy disk controller (FDC) installed on the system
board and you wish to use it. If you install an add-on FDC or the system has no floppy
drive, select Disabled in this field.
Onboard Serial Ports: 1, 2
Select a logical COM port address and corresponding interrupt for the first and second
serial ports.
Onboard Parallel Port
Select a logical LPT port address and corresponding interrupt for the physical parallel
port.
Parallel Port Mode
Select an operating mode for the onboard parallel port. Select Normal unless you are
certain that both your hardware and software support one of the other available modes.
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