Acer 390 Series, Service Manual

Page: 136 / 204

3-6 Service Guide
3.3 Onboard Devices Configuration
The Onboard Devices Configuration screen contains parameter items that are related to port
devices on your computer.
Onboard Devices Configuration
Serial Port ----------------------------- [Enabled]
Base Address ---------------------- [3F8h]
IRQ ------------------------------------ [4]
IrDA FIR -------------------------------- [Enabled]
Base Address ---------------------- [2F8h]
IRQ ------------------------------------ [3]
DMA ----------------------------------- [3]
Internal Modem ---------------------- [Enabled]
Base Address ---------------------- [3E8h]
IRQ ------------------------------------ [11]
Parallel Port --------------------------- [Enabled]
Base Address ---------------------- [378h]
IRQ ------------------------------------ [7]
Operation Mode ------------------- [Bi-directional]
ECP DMA Channel ---------------- [-]
↑↑↓↓
=Move Highlight Bar,
→ →← ←
=Change Setting, Esc=Exit
Press
↑↑
and
↓↓
to move the highlight bar; press
→ →
and
← ←
to change the setting of the highlighted
parameter. To exit this screen and return to the main screen, press Esc.
The following table describes the parameters in this screen. Settings in boldface are the default
and suggested parameter settings.
Table 3-3 Onboard Devices Configuration Parameters
Parameter Description Setting
Serial Port Enables or disables the serial port Enabled
Disabled
Base Address Sets the I/O base address of the serial port
3F8h
2F8h
3E8h
2E8h
IRQ Sets the IRQ (interrupt request) channel of the serial port
4
11
IrDA FIR Enables or disables the infrared port
Enabled
Disabled
Base Address Sets the I/O base address of the infrared port
2F8h
3E8h
2E8h
3F8h
IRQ Sets the IRQ channel of the infrared port
3
10