How to: Change the Direct Memory Access (DMA) for a device.
Solution:
Double-click the 'System' icon in 'Control Panel'. Click the 'Device Manager' tab. Select the 'Computer' icon and click 'Properties'. Record the unused DMAs. Remove the adapter card from the computer and set the jumpers on the card to reflect the new DMA.
WARNING: Electrical shock hazard! Make sure the power is turned off and the external power cables have been disconnected before removing the computer cover.
CAUTION 1: This task should be performed by a qualified computer technician.
CAUTION 2: Please observe steps to reduce the potential damage to computer components from electrostatic discharge.
1) Click the 'Start' button to display the 'Start' menu.
2) Select 'Settings' and select 'Control Panel'. (The 'Control Panel' folder opens.)
'Control Panel' window
3) Double-click the 'System' icon. (The 'System Properties' dialog box appears.)
4) Click the 'Device Manager' tab. (The system devices are displayed.)
Device Manager
5) Select the 'Computer' icon and click 'Properties'.
Select Computer and click properties
6) Click 'Properties'. (The 'Computer Properties' dialog box appears.)
Computer Properties
7) Select 'Direct memory access (DMA)' radio button. (The dialog box displays the devices with their DMA assignment and name.)
DMA
8) Record which DMAs are not assigned.
9) Click 'OK'.
10) Turn off the computer and disconnect the power cables.
CAUTION: The following steps expose the computer internal circuitry to electrostatic discharge and possible damage. They should be performed by a qualified service technician.
11) Reconnect the power cables and power up the computer.
12) Run a program that uses the adapter card to confirm proper operation.
