Acer 270 manual System Devices, IRQ4/ IRQ3

System Devices

The System Devices screen contains parameters involving your hardware devices. It also provides advanced settings of the system.

		P h oe n ixB IO S S e tu p U tility
M a in	S ys tem D e vice s	S ec urity	B o ot	Info .	E x it

P S /2 P o in tin g D ev ic e

S e ria l P o rt:

B as e I/O a d d re s s In te rru p t

P a ra lle l P ort:

M o de :

B as e I/O a d d re s s: In te rru p t

E C P D M A c h a nn e l:

Ite m s pe c ific H e lp

[B o th ]

[E n a b led ] [3 F 8 h] [IR Q 4 ]

[E n a b led ] [E C P ]

[3 7 8 h ] [IR Q 7 ] [D M A 1]

In tel® S p e e d S te p ™		T e c h no lo g y		[ A u tom atic ]
F 1	H e lp	↑ ↓	S e le ct Ite m	F 5 / F 6 C h a n g e V a lu es	F 9	S e tu p d e fa u lts
		← →
E s c	E xit		S e le ct M e n u	E n te r S e le c t S u b -M en u	F	1 0 S a ve a n d E x it

The table below describes the parameters in the screen. Settings in boldface are the default and suggested parameter settings.

Parameter		Description		Options
PS/2 Pointing Device	Determines whether or not to disable the internal			Both or Auto-Selected
	touchpad of a PS/2 pointing device is connected.
Serial Port	Enables, disables or auto detects the serial port.			Enabled/Disabled/Auto
Base I/O address	Sets the I/O address of the serial port.			3F8h/2F8h/3E8h/2E8h
Interrupt	Sets the interrupt request of the serial port.			IRQ4/ IRQ3
Parallel Port	Enables, disables or auto detects the parallel port.			Enabled/Disabled/Auto
Mode	Sets the operation mode of the parallel port.			ECP, EPP, Normal or Bi-directional
Base I/O address	Sets the I/O address of the parallel port. This			378h, 278h or 3BCh
	parameter is enabled only if Mode is set to ECP or
	Bi-directional.
Interrupt	Sets the interrupt request of the parallel port.			IRQ 7 or IRQ5
			4
Mode	Sets the operation mode of the parallel port.			ECP, EPP or Bi-directional
ECP DMA Channel	Sets a DMA channel for the printer to operate in			DMA3 or DMA1
	ECP mode. This parameter is enabled only if Mode
	is set to ECP.

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