Toshiba 5205 Series User Guide

240

5.375 x 8.375 ver 2.4.0

The channel to the CPU is called an Interrupt Request (IRQ) 
because it interrupts what the processor is doing and requests 
some of the processor’s time. If two or more devices use the 
same IRQ, the processor does not know which device is 
asking for attention. This causes a hardware conflict.

Similarly, the data required by the device is stored in a 
specific place or address in memory called the Direct 
Memory Access (DMA). The DMA provides a dedicated 
channel for adapter cards to bypass the microprocessor and 
access memory directly. If two or more devices use the same 
DMA, the data required by one device overwrites the data 
required by the other, causing a hardware conflict.

There are three things you can do to resolve hardware 
conflicts:

❖

Disable the device.

For an older device, remove it from the computer.

❖

Disable another system component and use its resources 
for the new device, see 

❖

Reconfigure the device so that its requirements do not 
conflict. Refer to the device’s documentation for 
instructions about changing settings on the device.

Device Manager provides a way to check and change the 
configuration of a device.