Acer TravelMate 620 Series, Service Manual

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36 Chapter 2
Onboard Device Configuration
The parameters in this screen are for advanced users only. You do not need to change the values in this
screen because these values are already optimized.
The Onboard Device Configuration screen assigns resources to basic computer communication hardware.
The following table describes the parameters in this screen. Settings in boldface are the default and
suggested parameter settings
Parameter Description Options
Serial Port Enables or disables the serial port.
The serial port is a PnP device. Enabled/Disabled
setting will not affect the Windows Device Manager
setting of the serial port.
When enabled, you can set the base I/O address and
interrupt request (IRQ) of the serial port.
Enabled or Disabled
3F8h, 2F8h, 3E8h, or 2E8h
4 or 3
Parallel Port Enables or disables the parallel port. The parallel port
is a PnP device. Enabled/Disabled setting will not
affect the Windows Device Manager setting of the
parallel port.
When enabled, you can set the base I/O address,
interrupt request (IRQ) and operation mode of the
parallel port.
Enabled or Disabled
378h , 278h, or 3BCh
7 or 5
Bi-directional , ECP, or Standard
ECP DMA Channel Sets a DMA channel for the printer to operate in ECP
mode. This parameter is enabled only if Operation
Mode is set to ECP. 1 or 3
Default Wireless Device Select default wireless device when system boot.
User may select preferred device as default wireless
device, or disable all wireless device to prevent
unnecessary RF signals. For the model without
Bluetooth or Wireless LAN, the corresponding items
should be invisible. Disable , Wireless LAN, Blutooth