IDE HDD Block Mode
Select Enabled only if your hard drives support block mode.
IDE PIO Modes (Primary Master/Slave)
The four IDE PIO (Programmed Input/Output) fields let you set a
PIO mode (0-4) for each of up to four IDE devices that the internal
PCI IDE interface supports. Modes 0 through 4 provide succes-
sively increased performance. In Auto mode, the system automati-
cally determines the best mode for each device.
IDE Primary 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 IDE UDMA fields (for each of up to four IDE
devices that the internal PCI IDE interface supports), the system
automatically determines the optimal data transfer rate for each IDE
device.
RING POWER ON Controller
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-in FDC or the system has no floppy drive, select Disabled in
this field.
Onboard Serial Ports (1, 2, 3, 4)
Normally, the main board’s I/O chips will occupy a certain portion
of memory space. For each I/O device the computer provides an
I/O address. The more devices attached the more address needed
to organize the memory storage areas. If all the I/O devices were
run through the same address, your devices would come to a near
halt. By providing the end user with four serial ports this allows
devices to run more efficiently if needed.
Selections of logical COM port addresses are as follows. ( 3F8H,
3E8H, 2F8H, 2E8H)