NEC MH4500 - Manual (Page 53)

Configuring Your System 3-9
I/O Device Configuration Submenu
Feature Choices Description Your Setting
(Serial Port A)
OS Controlled configure the port.
Base I/O Address 3F8
2F8
3E8
2E8 Selects the base I/O address for
COM port 1.
Interrupt IRQ 3
IRQ 4 Selects the IRQ for COM port 1.
COM 2:
(Serial Port B)
Disabled
Enabled
Auto
OS Controlled Auto forces BIOS to configure the
port.
OS Controlled forces OS to
configure the port.
Base I/O Address 3F8
2F8
3E8
2E8 Selects the base I/O address for
COM port 2.
Interrupt IRQ 3
IRQ 4 Selects the IRQ for COM port 2
Parallel Port Disabled
Enabled
Auto
OS Controlled Auto forces BIOS to configure the
port.
OS Controlled forces OS to
configure the port.
Mode Output only
Bi-directional
EPP
ECP Selects parallel port mode.
Base I/O Address 378
278 Selects the base I/O address for
LPT port.
Not available in ECP or EPP
modes.
Interrupt IRQ 5
IRQ 7 Selects the IRQ for LPT port.
DMA channel DMA 1
DMA 3 Selects the DMA for LPT port.
Floppy disk controller Disabled
Enabled Enables onboard diskette
controller.
PS/2 Mouse Auto
Disabled
Enabled Enables or disables onboard
mouse. Disabling frees up IRQ 12.
If enabled, the OS can determine
whether to enable or disable
mouse.
Advanced Chipset Control Submenu
The following table lists the settings for the Advanced Chipset Control
submenu.