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ASUS P/I-P55TVP4 User's Manual38
(Chipset Features)
IV. BIOS SOFTWARE
IV. BIOS
(Chipset Features)
Memory Hole at Address (None)
This features reserves either 14MB-16MB or 15MB-16MB memory address space to
ISA expansion cards that specifically require this setting. Memory from 14MB and up
or 15MB and up will be unavailable to the system because expansion cards can only
access memory up to 16MB.
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Onboard FDC Controller (Enabled)
When enabled, this field allows you to connect your floppy disk drives to the on-
board floppy drive connector instead of a separate controller card. If you want to
use a different controller card to connect the floppy drives, set this field to Disabled.
Onboard FDC Swap A: B: (No Swap)
This field reverses the drive letter assignments of your floppy disk drives. Two
options are available: No Swap and Swap AB. If you want to switch drive letter
assignments, set this field to Swap AB, and the swap will be controlled in hardware.
This works separately from the BIOS Features floppy disk swap feature. It is func-
tionally the same as physically interchanging the connectors of the floppy disk drives.
Onboard Serial Port 1 (3F8H/IRQ4)
Settings are 3F8H/IRQ4, 2F8H/IRQ3, 3E8H/IRQ4, 2E8H/IRQ10, and Disabled for
the onboard serial connector.
Onboard Serial Port 2 (2F8H/IRQ3)
Settings are 3F8H/IRQ4, 2F8H/IRQ3, 3E8H/IRQ4, 2E8H/IRQ10, and Disabled for
the onboard serial connector.
Onboard Parallel Port (378H/IRQ7)
This field sets the address of the onboard parallel port connector. You can select
either: 3BCH / IRQ 7, 378H / IRQ 7, 278H / IRQ 5, Disabled. If you install an I/O
card with a parallel port, ensure that there is no conflict in the address assignments.
The PC can support up to three parallel ports as long as there are no conflicts for
each port.
Parallel Port Mode (ECP+EPP)
This field allows you to set the operation mode of the parallel port. The setting
Normal, allows normal-speed operation but in one direction only; EPP allows bidi-
rectional parallel port operation at maximum speed; ECP allows the parallel port to
operate in bidirectional mode and at a speed faster than the maximum data transfer
rate; ECP+EPP allows normal speed operation in a two-way mode.