A brief essay describing how to configure parallel ports

There are three hexadecimal addresses commonly used for parallel ports: 03BC, 0378, 0278 (hex). These are absolute addresses, fixed in memory.

They can be distinguished from them “logical” addresses accessed by users and many programs: LPT 1, LPT 2, LPT 3,…. These logical addresses can be interpreted as “1st Line Printer, 2nd Line Printer, 3rd Line Printer,…”

Consequently, one cannot have a “2nd Line Printer,” without having a “1st Line Printer.” - ie: You can’t get a LPT 2, unless you already have a LPT 1.

At boot-time, the system’s BIOS automatically checks the three FIXED HEXADECIMAL ADDRESSES mentioned above, and arbitrarily assigns the LOGICAL ADDRESS of LPT 1, LPT 2, LPT 3, if parallel port(s) are found at any of those addresses.

The FIXED HEXADECIMAL ADDRESSES are checked in descending order, ie 03BC is checked first, 0378 is checked second, and 0278 is check third.

If port(s) is/are installed at the following addresses:

FIXED HEXADECIMAL ADDRESSES

0278h only

0378h only

03BCh only

0378h, 0278h

03BCh, 0278h

03BCh, 0378h

03BCh, 0378h, 0278h

LOGICAL ASSIGNMENT

LPT 1

LPT 1

LPT 1

LPT 1, LPT 2 respectively

LPT 1, LPT 2 respectively

LPT 1, LPT 2 respectively

LPT 1, LPT 2, LPT 3 respectively

Since logical addressing is arbitrary, particular operating systems will deal with the addressing schemes in different manners. For instance, some versions of UNIX will assign logical addresses LPT 0, LPT 1, LPT 2.

DOS/Windows 3.1x will usually conform to the outline above.

Win-95, Win NT will usually conform to the outline above, BUT if a parallel port of a higher FIXED HEXADECIMAL ADDRESS is added to an existing system, Windows might assign the new port the next logical address, rather than re-assign established logical addresses. - Eg Jane has a computer with Windows 95 installed and a built-in parallel port residing at 0378 hex. She buys a LAVA Parallel Bi-Directional card at the local computer shop, configures it for 03BC hex, and slips it into her system. When she runs the Windows-95 Add New Hardware Wizard, it automatically detects the LAVA port configured as 03BC hex and assigns it the logical address LPT 2.

However, since the assignments are arbitrary, Windows might not perform as expected. It is always best to adjust any settings (via DEVICE MANAGER) to conform with the table, above.

LAVA does not provide drivers or support for UNIX. SCO UNIX has a command called mkdev serial that can install the port in UNIX. Consult the documentation for your version of UNIX to see if this is the correct command for you and the appropriate switches.

To ensure that Lava ECP/EPP card installs correctly the following issues must be resolved.

1) Conflict with Onboard Parallel Port.

To ensure that the LAVA card does not conflict with the onboard parallel port card enter

your CMOS setup and make sure that the settings set for the LAVA card differ from those

for the on-board card.

2) Settings on LAVA card differ from those set in Device Manager.

In Device Manager Enter Ports (COM and LPT) and double-click the port that has been assigned

for the LavaPort. Check that the Resources for that port match what has been set

by jumpers on the Lava card.

3) Resource Conflict with LAVA card

To ensure that there are not any conflicts with the LAVA card enter Device Manager.

Double-click Computer. Ensure that no other device has claimed the IRQ I/0 range or

DMA channel that the LAVA card has been set to by jumpers. Make sure to check the DMA

channel in here. If 1 and 3 are listed in here our card must be installed without a

DMA channel. To do this make sure the jumpers are set OFF for DMA. Do this by having

the DMA jumpers hanging off one pin.

4) Problems with Printer Cable.

Make sure that you have a 25 Conductor (or Fully Loaded) Printer Cable.

Some cables may have all the pins on the connectors but they are not wired within

the cable. Generally, a cable is fully loaded if the connectors

are molded. If not, then it likely is 18 conductor.

Make sure that the length is less than 40′ long. Most printers will not work correctly

at more than 40′. Make sure that the printer cable is fully uncoiled. The magnetic

field created by a coiled cable could cause garbled output.

If you have an IEEE printer you must have an IEEE printer cable.

Installation/Reinstallation Instructions:

1) Remove the existing ECP port from Device Manager if it exists (the one with the problem).

2) Set the jumpers on the LAVA card to the correct LPT IRQ and DMA channel, then put the card into an ISA slot (with the power off.)

3) Go to Add New Hardware and don’t let it detect the card.

4) Choose Ports COM and LPT and then ECP Printer Port. If you are installing the card without a

DMA channel then choose Printer Port. Note what kind of Printer Port you have chosen

for the steps below.

5) When it asks to Reboot, DON’T!!!!! (Click no).

6) Go to Start - Settings - Control Panel - System - and enter the Device Manager tab.

7) Double-click the Printer port with the exclamation mark and enter Resources.

8) If you have chosen ECP Printer Port, uncheck Use Automatic Settings, then choose Basic

Configuration 4 and configure the LavaPort to the correct I/O address, IRQ, and DMA channel.

If you have chosen Printer Port uncheck Use Automatic Settings, choose Basic Configuration 3

and configure the LavaPort to correct I/O address and IRQ.

9) Click Ok and Ok and let Windows restart.

10) If you are installing a scanner, ZIP drive, or some other device, run the installation again

while the device is attached to our card. (In the case of the Iomega ZIP drive run the

Parallel Port accelerator program and if that doesn’t work uninstall the ZIP drive and run

the setup again and then run the Parallel Port accelerator program.)

After you re-enter Windows you will have a fully functional ECP/EPP printer port.

LAVA PCI cards do not install in Win2000 using a setup utility. They install when New Hardware is found at boot up of Windows. Windows searches your hard and floppy drives for an .inf file that includes the setup information for our card. This is a plain text file that contains the setup information for our card. Sometimes, it does not find this file so it is necessary to have our card reinstall.

The following procedure will reinstall our card:

1) Right Click on My Computer from the desktop and enter Properties and then Device Manager. Enter the section called Other Devices or Unknown Devices.

2) Remove the reference to either PCI card or PCI Serial Controller or PCI parallel controller by right-clicking on it and entering Uninstall.

3) Shut down your computer normally and ensure that our card is seated properly in the PCI slot.

4) Upon entering Windows, when New Hardware is found direct it to the LAVA Win2000 .inf file.

5) Let Windows search for our installation file and reinstall our card correctly.

WINDOWS 2000 FEATURES

In Windows 95/98/Me we provide a utility for redirecting the COM port assignment that Windows assigns our ports. This utility is not necessary in later versions of Windows. The following is the procedure to redirect our port in Windows 2000.

1) Go to Device Manager by right-clicking on My Computer from the Desktop and entering Properties.

2) Open up Ports (COM & LPT) by clicking the + sign to the left.

3) Double-click the port you wish to redirect and enter the Port Settings Tab.

4) Click the Advanced Button.

5) In the Window that appears you can redirect the port assignment.

SPECIAL WINDOWS 2000 FEATURE

Parallel Port LPT assignments can be redirected. Currently the choice for redirection is LPT1 LPT2 or LPT3.

CLEANING UP OUR INF FILE

If you are updating the .inf file from a previous version of this file it is necessary to remove the old version. You must go to the Windows\inf folder. If you don’t see the inf folder then your folder options are set to hide that folder. To see that folder go to View|Folder Options|View

In there make sure that the show all files option is set. Our .inf file is found under the name oemX.inf, where X is some integer. You must edit using notepad.exe each oemX.inf file and look for a reference to LAVA. If there is a reference to LAVA then remove that file. Also, remove the associated oemX.pnf that is located here as well.

Question:

I have upgraded my system to a newer version of Windows. I left my LAVA card in the system during the upgrade. Now in Device Manager my card is showing up in Other Devices as PCI Parallel Card or PCI Serial Card. The peripheral attached to it (modem, printer, Zip drive) won’t work. What do I do now?

Answer:

During the installation of the upgrade, Windows was looking for the drivers on the Windows upgrade CD. The card’s drivers are not located on the CD so the installation routine couldn’t install the card properly. The following procedure will reinstall the card properly:

1) Go to Device Manager by right-clicking on My Computer from the Desktop and entering Properties. Then click the Device Manager tab.

2) In Device Manager remove the PCI Parallel Card or PCI Serial Card with the exclamation (!) mark by clicking it and hitting delete on the keyboard.

3) Close all open windows and reboot the system by using Start|Restart.

4) Upon booting into Windows the New Hardware Found wizard will appear. Direct this wizard to the LAVA Installation disk, following the procedure described in the LAVA Installation manual for installing the card in Windows.

Question:

I have upgraded my system to Windows system to Windows ME (Millenium Edition). I left my LAVA card in the system during the upgrade. Now in Device Manager my card is showing up in Other Devices as PCI Parallel Card or PCI Serial card. The peripheral attached to it (modem, printer, zip drive) won’t work. What do I do now?

Answer:

During the installation of the upgrade, Windows was looking for the drivers on the Windows ME upgrade CD. Our drivers are not located on the CD so it couldn’t install it properly. The following procedure will have our card reinstall properly:

1) Go to Device Manager by Right Clicking on My Computer from the Desktop and entering Properties. Then click the Device Manager tab.

2) In Device Manager remove the PCI Parallel Card or PCI Serial Card with the exclamation (!) mark by clicking it and hitting delete on the keyboard.

3) Close all open Windows and reboot the system by using Start - Shutdown.

4) Upon the boot into Windows you will see the New Hardware found wizard. Direct this wizard to our disk, following the procedure illustrated in the LAVA Installation manual for installing the card in Windows 95/98.

Some printer port devices only look for Interrupt requests that are edge driven. PCI cards are level driven. It is possible that your scanner is looking for interrupt requests that edge driven. Unfortunately, we cannot change how the scanner detects the mode. If it does not detect our EPP mode you obtain updated drivers and installation utilities from the scanner manufacturer.

Some scanners that use Shuttle technology have the capability of the disabling the interrupt detection completely. These scanners install a device under SCSI controllers in Device Manager. The name varies depending on scanner manufacturer. Many times it has a reference to Shuttle. In this device you can change settings in the Settings tab under Adapter settings.

Under Windows 95

/w95 /di

Under Windows 98

/di

Standard Microsoft Basic Configurations for Communications Ports

COM BASIC CONF RESOURCE

COM1 0 03F8-03FF: IRQ 4

1 03F8-03FF: Any IRQ

COM2 2 02F8-02FF: IRQ3

3 02F8-02FF: Any IRQ

COM3 4 03E8-03EF: IRQ4

5 03E8-03EF: Any IRQ

COM4 6 02E8-02EF: IRQ3

7 02E8-02EF: Any IRQ

COMX 8 Any I/O range: Any IRQ

Standard Microsoft Basic Configurations for Parallel Ports

Printer Port

BASIC CONF RESOURCE

0 03BC-03BE

0378-037A

0278-027A

NO IRQ

1 03BC-03BE

0378-037A

0278-027A

Any IRQ

2 ANY I/O Range

No IRQ

3 Any I/O Range

Any IRQ

4 Any I/O Range

Any IRQ

Any DMA

ECP Printer Port

BASIC CONF RESOURCE

0 03BC-03BE

0378-037A

0278-027A

NO IRQ

1 03BC-03BE

0378-037A

0278-027A

Any IRQ

2 03BC-03BE

0378-037A

0278-027A

Any IRQ

Any DMA

3 ANY I/O Range

No IRQ

4 Any I/O Range

Any IRQ

Any DMA

Question:

I have installed my LAVA card that has jumpers into my operating system correctly. However, when I try to use the card the OS reports that the card is not functioning properly. What should I do?

Answer:

The answer to this question applies to all LAVA cards that have IRQ jumper settings. To correct this situation it is necessary to make some BIOS setting changes. The following description applies to an Award BIOS version 4.51 PG. Consult your motherboard manual to find equivalent setting changes and how to enter your BIOS setup.

Enter PNP CONFIGURATION SETUP.

Change RESOURCES CONTROLLED BY from AUTO to MANUAL.

Scroll down to the IRQ(s) assigned to our card and change that IRQ from PCI/ISA PnP to Legacy ISA.

Note: LAVA PCI cards do not use a setup utility to install in Windows 95/98/Me/2000. They install when New Hardware is found at boot up of Windows. Windows searches your hard and floppy drives for an .inf file that includes the setup information for our card. Sometimes, it does not find this file so it is necessary to reinstall the card.

The following procedure will reinstall the card:

1) Right-click on My Computer from the desktop and enter Properties and then Device Manager. Enter the section called Other Devices or Unknown Devices.

2) Remove the reference to either PCI card or PCI Serial Controller.

3) Shut down your computer normally and ensure that the card is seated properly in the PCI slot.

4) Upon re-entering Windows and when New Hardware is found, place the LAVA Installation and Utilities disk into the drive.

5) Let Windows search for our installation file to reinstall our card correctly.

Also:

In Windows 95 B OSR2 a patch must be run in order for PCI devices to function properly. In Device Manager check if there is an Other Devices Section. In there you might see a PCI bridge device and a Universal Serial Bus controller both with question marks (?). If this is the case then you must run the Windows patch that comes on a floppy or CD ROM with the motherboard while our card is NOT in the system. The file is usually called piix4.exe or something similar. Consult the readme files on the disk to find out what the file is exactly named in your case.

Also:

If your card is a generic version of a LAVA card, it will require drivers written specifically for that card. Consult Technical Support to obtain generic drivers.

If reinstalling the card doesn’t work, check the following:

A) Ensure that the card is seated in the slot properly.

B) See that the slot that the card is in has no problem. Try the card in a different slot ensuring that it is properly seated in the slot.

C) Some computers give errors with our card if the card is placed in a dedicated PCI slot if there are shared PCI / ISA slots in that computer. Try the card in one of the shared PCI ISA slots.

D) Ensure that the card itself has no problems. If it does, replace it through the reseller of your card. If they are not willing to replace it then we can.

Introduction

This document discusses the appearance of the Update Device Wizard or the New Hardware Found windows. If one of the two following problems occur, then you need to complete the “Update Device Wizard” to prevent it from re-appearing:

The Update Device Wizard or New Hardware Found window appears with the HP license agreement, when installing an HP DeskJet printer driver through the Add Printer icon in Windows 95 or 98.

OR

The Update Device Wizard, New Hardware Found or Add New Hardware Wizard window appears every time Windows 95 or 98 is started and prompts you to install the HP DeskJet printer.

Instructions

To prevent the Windows Plug and Play feature (Update Device Wizard, New Hardware Found, or Add New Hardware Wizard) from opening each time that the computer is restarted, use the following steps.

Update Device Wizard

To complete the Update Device Wizard, do the following:

1.If there are any disks in the floppy drive or the CD-ROM drive, remove them.

2.Click Next when the Update Device window appears.

3.Click Finish to the message indicating a new driver could not be found. The Update Device window will not appear again for this printer.

4.If the HP DeskJet printer driver is being installed, click Agree to License to continue with the HP printer driver installation.

New Hardware Found

To prevent the New Hardware Found window from appearing, do the following:

In the Windows 95/98/Me Plug and Play screen, select “Do not install a printer driver and Windows will not prompt you again.” Then select OK. This will stop the Plug and Play feature from opening each time that the computer is restarted.

If the previous steps do not work:

Contact the computer manufacturer to ensure that the computer’s BIOS (CMOS) port settings are configured to a bidirectional mode such as ECP, EPP, or BIDI.

The LPT port settings in the computer’s CMOS and in the Windows Device Manager need to be compatible. If the LPT port in the Windows Device Manager is configured for a bidirectional mode (for example, ECP Printer Port LPT1), the computer’s CMOS setting for the LPT port must also be configured for a bidirectional mode. Otherwise, Window’s Plug and Play will try to reinstall the HP DeskJet printer driver every time Windows is booted.

INSTRUCTIONS ON SETTING BIOS FOR JUMPERED CARDS

Question:

I have installed my LAVA card that has jumpers into my
operating system correctly. However, when I try to use
the card the OS reports that the card is not functioning
properly. What should I do?

Answer:

The answer to this question applies to all LAVA cards
that have IRQ jumper settings. To correct this situation
it is necessary to make some BIOS setting changes. The
following description applies to an Award BIOS
version 4.51 PG. Consult your motherboard manual to find
equivalent setting changes and how to enter your BIOS setup.

Enter PNP CONFIGURATION SETUP.

Change RESOURCES CONTROLLED BY from AUTO to MANUAL.

Scroll down to the IRQ(s) assigned to our card and change
that IRQ from PCI/ISA PnP to Legacy ISA.

(A) OBTAINING RESOURCE ASSIGNMENT OF PARALLEL CARD

ISA CARD

If you are installing an ISA card the resource assignments are configured by the jumpers. Consult the documentation for that card to obtain the resource assignments associated with the jumper settings.

PCI CARD

Linux reports the resource assignments of PCI cards.

The following instruction will report the resource assignment of all the PCI cards.

lspci -v

The output lists the PCI devices on the system. The following are examples of our card in that output.

LAVA Parallel PCI

00:0a.0 Parallel controller: Lava Computer mfg Inc Lava Parallel (prog-if 01 [BiDir])

Flags: slow devsel, IRQ 12

I/O ports at 6100

LAVA Dual Parallel PCI port A

00:0b.0 Parallel controller: Lava Computer mfg Inc Lava Dual Parallel port A (prog-if 01 [BiDir])

Flags: slow devsel, IRQ 12

I/O ports at 6400

LAVA Dual Parallel PCI port B

00:0b.1 Parallel controller: Lava Computer mfg Inc Lava Dual Parallel port B (prog-if 01 [BiDir])

Flags: slow devsel, IRQ 12

I/O ports at 6500

On this system there is a single LAVA Parallel-PCI at port address 0×6100 and IRQ 12, and a LAVA Dual Parallel-PCI port A at port address 0×6400 and IRQ 12 and port B at port address 0×6500 and IRQ 12.

The 0x signifies that this port address is in hexadecimal.

(B) ASSIGNING RESOURCE ASSIGNMENTS OF PARALLEL PORT TO LINUX

Linux does hold resource assignments of the parallel ports in the system. These resource assignments are held in the file as well as resource assignments of other cards such as network cards. The file is

/etc/conf.modules

The following is an example of the parallel port assignments in that file.

alias parport_lowlevel parport_pc

options parport_pc io=0×378 irq=7

where io=0×378 is the IO assignment of the first (onboard) parallel port.

where irq=7 is the IRQ assignments of the first parallel port.

Initially, the LAVA resource assignments will not be in this file. It is necessary to manually edit this file to add the resource assignments obtained from step (A) above.

The following is an example the dual parallel PCI’s resource assignments added to this file.

alias parport_lowlevel parport_pc

options parport_pc io=0×378,0×6400,0×6500 irq=7,auto,auto

where io=0×378,0×6400,0×6500 are the IO assignments of the first, second and third parallel port respectively. These IO assignments are obtained from step (A) above.

The second and third parallel port being the Port A and B of the dual parallel PCI respectively.

where irq=7,auto,auto are the IRQ assignments of the first, second and third parallel port respectively. These IRQ assignments are obtained from step (A) above. The second and third parallel port being the Port A and B of the dual parallel PCI respectively or auto can be used instead.

At this point the parallel ports are enabled and are ready to be used.

Below are notes for adding the fourth + parallel port in Linux.

Linux already has support for lp0 lp1 and lp2

1) Creating the devices in /dev:

/mknod -m 666 /dev/lp3 c 6 3

-m= mode; 666 is read write for every one

/dev/lp3 = fourth lpt

c = character device

6 = Major; stands for what kind of device it is.

3 = Minor; lp #; so if lp3 then this is 3, lp4 then this is 4 etc.

2) Changing it to Daemon

chgrp daemon /dev/lp3

This enables this device we added as a daemon. A daemon is a program that runs in the background to perform critical system tasks. In our case parallel port functions.

3) Repeat these steps (1,2) for each parallel that needs to be added incrementing the lp and the Minor as each port is added.

4) Add the IO port assignments and IRQs to Linux as instructed in step (A) above.

At this point the parallel ports are enabled and are ready to be used.

Sometimes when switching the LAVA Parallel-PCI to 0278 - 027F it conflicts with some sound cards. If this occurs try using the 0288 - 028F address range.

If that does not work then it is necessary to reinstall the on-board parallel port as the 3bc port and modify the LAVA PCI parallel port as the 0378 - 037F port.

Do this as follows:

a) Go to the LAVA Parallel-PCI in Device Manager. Go to Resources and recheck Automatic Settings. Click OK and then click refresh.

b) Remove the LAVA Parallel-PCI from Device Manager and the LPT1.

c) Shut Down your computer and reboot.

d) As you are booting up enter your CMOS setup by hitting F1 or DEL or the appropriate key for your motherboard.

e) Enter the menu for configuring your on-board parallel to 3bc address.

f) Save this new setting and exit. NOTE: Consult your motherboard manual for steps d), e), and f).

g) Boot into Windows let the ports reinstall.

h) Reconfigure the LAVA Parallel-PCI to 0378-037F by going to the Resources tab. Uncheck Use Automatic Settings and then double-click Input/Output Range.

To properly install an ISA parallel card, you need a free IRQ and I/O address on your computer for the LAVA card to use.

Shut down your computer

To check for free resources, shut down your computer. If the card is in your computer, remove it now. Next, restart your computer.

Set the I/O address

Once your computer has restarted without the card, go into Windows Device Manager, and select “Ports”. Choose an LPT port, select “Properties”, and write down the I/O address.

After you’ve done this for all LPT ports, set the addressing jumpers on your card to an address NOT ALREADY USED by Windows. For example, if you found that LPT1 had an address of 0378 037F, you would configure your card to use the next available address of 0278.

Set the IRQ

Next, return to Device Manager, select “View”, and choose “Resources by type”. This will give you a list of all IRQs that are currently being used by the computer. Write down all numbers from 1 to 15 that DO NOT appear in that list. Any IRQ that you have written down can be used as a free IRQ for the card you are installing.

Set IRQ jumper on the card to one of the free IRQs in your computer. Once you’ve done this, you are ready to shut down the computer, and install the card.

NOTE FOR PARALLEL-ECP/EPP CARD USERS:

Set the DMA address

In addition to determining a free IRQ and I/O address, you may need to assign a DMA address. First, find out what parallel mode your device uses. It will probably be EPP or ECP. If not specified otherwise, treat your device as an EPP device. If you are using EPP mode, set the jumpers for DMA addressing to ‘none’.

If you are configuring your card as an ECP port, you must determine what DMA addresses you have free in your system. Return to Device Manager, select “View”, and choose “Resources by type”. Now select “DMA” to find available DMA resources.

Restart your computer

Once the card is installed in the computer, reboot your system. After the Operating System is fully loaded, go to Control Panel, and select “Printers and Other Hardware”. In that Window you should see an option to “Add Hardware”. Windows will then search for hardware, and ask you if the hardware is currently connected to the computer. Select “Yes, I have already connected the hardware”. You will then see a Window where you are prompted to select the type of device you have installed. Select “Add a New Hardware Device”, which should appear as the last entry on the list.

Windows will then prompt you to either automatically or manually install the device. At this point select “Install the hardware that I manually select from a list”. You should then be able to select “Ports”, then choose “Standard” and “Printer port”.

Prior to finishing the installation, select “View or Change Resources for this Hardware (Advanced)”. This option will allow you to configure Windows to recognize the resources you have selected for your card. Once you select this option, the “Add New Hardware Property” window should appear. Now select “Set Configuration Manually.” Under “Settings Based On”, choose”Basic Configuration 0001″. This option will allow you to specify the settings for your card. You should now be able to double-click the I/O range and the IRQ and enter the resources to reflect how you set the jumpers on your card.

Once this is done, select Finish, and restart your computer.

Check your settings

Once your computer has restarted, you should go back to Device Manager, and ensure that the resources the computer has given to the card match what you specified earlier. At this point, you may find your port has defaulted to become something other than what you specified. If you wish to change this setting, double-click the port listing and go to the “Port-Settings” tab. Make the following two changes here:

1. Change the “Filter Resource Method” from “Never use an Interrupt” to “Use any Interrupt Assigned to the Port”.

2. Change the LPT number to what you desire. Once these changes are made, you should be able to use your ISA printer port.

1) Boot into NT without the Parallel-ECP/EPP installed in the computer.

2) Check for available IRQs. Go to Start | Programs | Administrative Tools | Windows NT Diagnostics and enter the Resources Tab. Check for a free IRQ in here. NT does not show the IRQ for parallel ports. By default the motherboard parallel port uses IRQ7, so assume IRQ7 is not free. Find a number missing in here between 0 and 15. If 9 is missing then set the IRQ jumper to 2. If all the IRQs are being used then you must install our card without an IRQ.

3) Remove the DMA jumpers. NT4.0 does not support ECP. ECP mode is enabled by enabling a DMA channel.

4) Find out which Input/Output Address the on-board parallel port is using. Go to Start | Programs | Administrative Tools | Windows NT Diagnostics and enter the Resources Tab and then Click the Devices button. Double-click the ParPort device. This shows your existing parallel port addresses. Do not set the card to any of these addresses. Set the card to the next address.

For example on LAVA Card:

	LPT1=3bc
	LPT2=378
	LPT3=278

Note NT4.0 cannot detect the non-standard addresses (LPT4 and up) so do not choose one of those addresses.

If you see 378 then set the LAVA Card to LPT3 278 to make it LPT2.

5)Shut down and put the card in the ISA slot.

6) Boot back into NT and verify that our card has installed. Go to Start | Programs | Administrative Tools | Windows NT Diagnostics and enter the Resources Tab and then Click the Devices button. Double-click the ParPort device. If you see an additional set of input/output ranges then you have successfully installed our card.

Setting Jumpers on LAVA Card

Enter Device Manager by RIGHT-clicking on My Computer from the desktop, going to properties and then clicking the Device Manager Tab.

1) Input/Output Range

Open up Ports COM and LPT by clicking on the plus to the left of it once.

Double-click the LPT1 and enter the Resources tab.

If the Input/Output Range is set to 0378-037A then set the jumper on for Input/Output Range on the LAVA card to LPT3 278/F. If the Input/Output Range is set to 03bc-03be then set the jumper on for Input/Output Range on the LAVA card to LPT2 378/F.

2) Interrupt Request (IRQ)

Enter Device Manager By RIGHT-clicking on My Computer from the desktop, going to properties and then clicking the Device Manager Tab.

Double-click computer in Device Manager.

Find a number between missing in here between 0 and 15. If 9 is missing then set the IRQ jumper to 2. If all the IRQs are being used then you must install our card without an IRQ or DMA (polled mode) so remove the IRQ and DMA jumpers from the card completely and skip part III Direct Memory Access (DMA).

Reserve the IRQ in the BIOS setup. This description applies to all LAVA Cards that have IRQ jumper settings. To correct this situation it is necessary to make some BIOS setting changes. The following steps apply to an Award BIOS version 4.51 PG. Consult your motherboard manual to find similar setting changes and how to enter your BIOS setup.

Enter PNP CONFIGURATION SETUP. Change RESOURCES CONTROLLED BY from AUTO to MANUAL. Scroll down to the IRQ assigned to our card and change that IRQ from PCI/ISA PnP to Legacy ISA.

3) Direct Memory Access (DMA)

Enter Device Manager By RIGHT-clicking on My Computer from the desktop, going to properties and then clicking the Device Manager Tab.

Double-click computer in Device Manager. Click the Circle for Direct Memory Access (DMA) to view DMA resources.

If 1 is not listed then set both jumpers for DMA (DMA ACK. and DMA REQ.) to 1. If 3 is not listed then set both jumpers for DMA (DMA ACK. and DMA REQ.) to 3. If both DMA 1 and 3 are used then you cannot enable ECP mode for this card: just remove both DMA jumpers completely. This will enable our card in EPP mode (if you have chosen a free IRQ for our card.)

Reserve the DMA channel in the BIOS setup. This description applies to all LAVA Cards that have DMA jumper settings. To correct this situation it is necessary to make some BIOS setting changes. The following applies to an Award BIOS version 4.51 PG. Consult your motherboard manual to find similar setting changes and how to enter your BIOS setup.

Enter PNP CONFIGURATION SETUP. Change RESOURCES CONTROLLED BY from AUTO to MANUAL. Scroll down to the DMA channel assigned to our card and change that DMA channel from PCI/ISA PnP to Legacy ISA.

NOTE: The BIOS (CMOS) changes above for both IRQ and DMA are not always necessary. However, it is better to do them to prevent problems in the future.