IBM Aptiva 2174, Hardware Maintenance Service

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General Information 17
parameter is set to Disable, the data transfer rate will be the most safe PIO
mode 4.
Input/Output Ports
From the Setup main menu, select the Input/Output Ports option to view or
change port configuration settings. The Input/Output Ports menu appears.
This menu lets you configure serial and parallel ports.
Also included in this menu are items for enabling or disabling the onboard
controller chipsets.
Serial Port
For the machine 2174, it comes with two 9-pin serial ports. Serial port 1 sets to
Enable and serial port 2 is not shown on the BIOS screen. The default setting
of Base Address is 2F8h and the default IRQ is 3.
Parallel Port
Your computer comes with one parallel port. This parameter shows the default
Enabled to activate the parallel port. The default base address is 378h and the
default IRQ is 7.
The default mode is ECP. The default DMA is 1.
Onboard PS/2 Mouse (IRQ12)
This parameter enables or disables the onboard PS/2 mouse. When set to
Enabled, it allows you to use the onboard PS/2 mouse. When set to Disabled,
it deactivates the mouse and frees IRQ 12 for the use of other devices.