The following are the steps to take to ensure that your ISDN card is working properly.

Put the card into the computer and start the machine.

If the card was recognised by Windows'95 (98), go to STEP 3.

If the card wasn't detected, go to STEP 2.

If Windows'95 (98) did not automatically detect the card, and you have not tried to load the drivers before, try the card in another slot in your machine. It may be that the slot doesn't work properly.

If you have tried to load the drivers before but without success, and now Windows'95 (98) doesn't detect the card, it could be because Windows'95 (98) keeps a memory of the state of the computer the last time it was used.

In order to ensure that the card will be detected, we would recommend that the following steps be taken to allow the computer to be started without the card, and therefore no memory of it. This will ensure that the card is detected the next time.

Delete the drivers (See below for details as to how to do this).

Power down the machine.

Remove the card.

Power up the machine.

Power down the machine.

Insert the card again.

Power up the machine.

Go to STEP 1

Install and run the Diagnostics Utility that came with your card. It will be on a separate disk. Perform the LOOPBACK TEST (see explanation under DIAGNOSTICS UTILITY section).

Go into Safe Mode.(See reference page 4 for details as to how to do this).

Go to CONTROL PANEL > MODEMS and delete any reference to your ISDN card found there. Go to SYSTEM > DEVICE MANAGER > NETWORK ADAPTERS and delete any reference to your ISDN card found there, and then go up the list to MODEMS and do the same there.

Re-boot the machine to go back into Normal Mode.

Interrupt Requests.

Go to CONTROL PANEL > DEVICE MANAGER > NETWORK ADAPTERS. Highlight your ISDN card, and press the PROPERTIES button.

 Then press the RESOURCES tab. This will show the Interrupt Request (IRQ) that has been allocated by the Operating System.

This can be found on a separate disk with your card. When you run it you can perform a Loopback Test. This will allow you to input the telephone number of one of your ISDN channels (e.g., channel 0). The card will then dial the number using the other channel. The call will go to the local telephone exchange, and then "loop back" to your card. This test will advise if your card is set up properly, and can dial out.

If the card is NOT detected, go to STEP 2.

If the card IS detected, but the loopback test fails, please check the following:

Another device may be using the line

Cables and wires are attached correctly

Socket is correctly wired

The correct telephone number(s) have been entered

This is a special diagnostics mode for Windows'95 or 98.

The reason for deleting drivers in this mode is that Windows does not load as much as it will in Normal Mode, and there are therefore less places for Windows to "hide" parts of the drivers.

To go into Safe Mode, re-boot the machine. When the message "starting Windows'95 (98)" appears, either press [F5] to go straight into Safe Mode, or press [F8] to bring up a menu that will allow Safe Mode as an option.

This is a chip on the motherboard (the large card inside the computer onto which all other cards and devices are plugged into).

This chip queries all the devices in the machine and passes the information on to the operating system (Windows'95 (98) etc.) You can get to the bios by following the prompts on the screen when you start (or re-boot) your computer.

When you see the POST routine (Power On Self Test) on your screen (white writing on a black background), you will notice that one of the first things to happen will be that the computer counts the memory you have available in the computer. This will be a number that is counted in the top left-hand side of the screen. As soon as this has finished, the display will read "Press [F1] to enter Setup". It could say [Del] instead of [F1], depending on which type of BIOS chip you have. When you do so, you will need to go to the menu options that deal with PnP. Ensure that you have some IRQ's set to PCI ISA, e.g.,IRQ10 or IRQ12, and not Legacy ISA. This will announce to Windows'95 (98) that these IRQ's may be used for PCI devices.

Explicit details cannot be given regarding your BIOS as there are a great many BIOS chips in different computers across the world, and the screens can look very different from each other.