| Parallel Port IRQ If
you have a high-speed parallel port device, you can try improving
its performance and responsiveness using this method :-
- Go to System Properties by right-clicking on My
Computer or via the Control Panel.
- Select the Hardware tab and you will see the screen
below :-
- Look at the Device Manager section and click on the Device
Manager button.
- This brings up the Device Manager screen.
- Open up the Ports (COM & LPT) device branch. Then you will
see the list of COM and LPT ports in your system.
- Select ECP Printer Port, right click and choose Properties.
Or just double click on ECP Printer Port.
- In the screen that appears, click on the Port Settings
tab. Note that by default, Windows 2000 won't allocate an
interrupt to the parallel port. This frees up an IRQ for the use
of other devices.
- If your parallel port device can use an IRQ, enabling its use
of an IRQ may improve its performance. There are two choices,
however. If you are absolutely sure your parallel port device
uses an IRQ and you have a free IRQ, then you can choose Use
any interrupt assigned to the port.
- If you are not sure, it's best to choose Try not to
use an interrupt instead. That way, PnP will query the
parallel port device and determine if it needs an IRQ. If the
device needs the IRQ, then it is allocated that IRQ. Otherwise,
the IRQ will remain free.
- Click OK and your parallel port device will have an IRQ
allocated to it if it requires one.
Notes
- Enabling an IRQ does not necessarily mean better parallel port
performance.
- Any benefit obtained from this tip depends on whether the
parallel port device actually uses an IRQ.
Comments?
If you have a comment or question about this tip, please post
them here.
Thanks for your time and I hope this tip has helped you some! :)
Adrian Wong
Adrian's Rojak Pot
http://www.rojakpot.com/
http://www.adriansrojakpot.com/
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