MSI VB9 User Manual page 38

successively increased performance. In Auto mode, the system automatically determines the
best mode for each device. The settings are: Auto, Mode 0, Mode 1, Mode 2, Mode 3, Mode
4.
Primary/Secondary Master/Slave UDMA
Ultra DMA/33 implementation is possible only if your IDE hard drive supports it and the
operating environment includes a DMA driver (Windows 95 OSR2 or a third-party IDE bus
master driver). If your hard drive and your system software both support Ultra DMA/33 and
Ultra DMA/66, select Auto to enable BIOS support. The settings are: Auto, Disabled.
IDE HDD Block Mode
Block mode is also called block transfer, multiple commands, or multiple sector read/write. If
your IDE hard drive supports block mode (most new drives do), select Enabled for automatic
detection of the optimal number of block read/writes per sector the drive can support. The
settings are: Enabled, Disabled.
Onboard FDD Controller
Select Enabled if your system has a floppy disk controller (FDD) installed on the system
board and you wish to use it. If you install add-on FDC or the system has no floppy drive,
select Disabled in this field. The settings are: Enabled and Disabled.
Onboard Serial Port 1/Port 2
Select an address and corresponding interrupt for the first and the second serial ports. The
settings are: 3F8/IRQ4, 2E8/IRQ3, 3E8/IRQ4, 2F8/IRQ3, Disabled, Auto.
UART 2 Mode
This item allows you to determine which InfraRed(IR) function of the onboard I/O chip, this
functions uses.
Onboard Parallel Port
There is a built-in parallel port on the on-board Super I/O chipset that Provides Standard,
ECP, and EPP features. It has the following option:
Disabled
(3BCH/IRQ7)/
(278H/IRQ5)/
(378H/IRQ7)
Onboard Parallel Mode
SPP : Standard Parallel Port
EPP : Enhanced Parallel Port
ECP : Extended Capability Port
SPP/EPP/ECP/ECP+EPP
To operate the onboard parallel port as Standard Parallel Port only, choose "SPP." To
operate the onboard parallel port in the EPP modes simultaneously, choose "EPP." By
choosing "ECP", the onboard parallel port will operate in ECP mode only. Choosing
Line Printer port 0
Line Printer port 2
Line Printer port 1
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