Acer TravelMate -550, Руководство по обслуживанию

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Chapter 2 39
System Devices
The System Devices screen contains parameters involving your hardware devices.
The table below describes the parameters in the screen Settings in boldface are the default and suggested
parameter settings.
NOTE: VGA takes up a portion of system memory, configurable via the VGA Frame Buffer parameter. For
example, if you have 128 MB SDRAM, and you set a VGA Frame Buffer of 16MB, main memory is
112MB.
Parameter Description Options
Pointing Device Determines whether or not to disable the internal
touchpad of a PS/2 pointing device is connected.
Simultaneous
or Auto-Selected
Ext.Keyboard “Fn” Allows you to simulate an Fn key on an external
keyboard by pressing the left b + left a keys
Enabled
or Disabled
IDE Controller Enables or disables the primary or secondary IDE
controller or both. Both
, Primary or Disabled
FDD Controller Enables or disables the floppy drive controller. Enabled
or Disabled
Parallel Port Enables or disables the parallel port.
Enabled
or Disabled
IRQ Sets the interrupt request of the parallel port.
IRQ 7
or IRQ5
Mode Sets the operation mode of the parallel port. ECP
, EPP or Bi-directional
Base I/O address Sets the I/O address of the parallel port. This
parameter is enabled only if Mode is set to ECP or
Bi-directional.
378
, 278 or 38C
DMA Channel Sets a DMA channel for the printer to operate in
ECP mode. This parameter is enabled only if Mode
is set to ECP. 3
or 1
VGA Frame Buffer Size Specifies the amount of main memory to allocate for
VGA.
16Mb
, 32Mb or 8Mb
Item Specific Help
Pointing Device:
Ext. Keyboard “Fn”:
IDE Controller:
FDD Controller:
Parallel Port:
Interrupt:
Mode:
Base I/O address:
DMA channel:
VGA Frame Buffer Size:
[Simultaneous]
[Enabled]
[Both]
[Enabled]
[Enabled]
[IRQ 7]
[ECP]
[378]
[DMA 3]
[16 Mb]
Main Security Others Boot Exit System Devices
F1 Help Select Item F5/F6 Change Values F9 Setup Defaults
Esc Exit Select Menu Enter Select > Sub-Menu F10 Save and Exit
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