PhonSoft Technical Library
Subject:Dialogic Installation Troubleshooting
Category:Dialogic Voice Boards, Installation

Problem Description:

When installing Dialogic ISA-based cards in computers that have ISA and PCI slots, there are certain BIOS configuration options that should be considered. Improper setup of these options can manifest itself in problems anywhere from downloading a board, to starting the Dialogic drivers, or starting an application.

Solution Summary:

There are various BIOS options that can be looked at in order to resolve the above mentioned problems. Unfortunately since there is no standard format that BIOS manufacturers follow in accessing these options, the discussion will be in general terms.

Please consult your PC BIOS documentation for vendor specific details which may pertain to this discussion.

In addition we will also explore general resource conflict issues that may exist as well.

Technical Discussion:

BIOS stands for "Basic Input Output System". It essentially consists of a set of routines that are used when booting up a computer. There are options that can be set in the system BIOS that allows the user to define memory and IRQ settings that may affect proper functioning of the Dialogic-ISA based hardware.

Each BIOS manufacturer has different ways to gain access to the BIOS system setup screen. Generally, during bootup, there will be a message on the screen indicating a key or combination of keys that the user can hit in order to get into the BIOS setup. The user may see something like <F2> or perhaps <CTRL - ALT - ESC>. Again, keep in mind that the exact key/keystrokes may differ from BIOS manufacturer to manufacturer and it may even differ from BIOS version to BIOS version. The key/keystrokes to get into the BIOS are usually only active for a short period of time at the beginning of the boot-up process.

There are several different options to investigate. The user may have to "dig" through a few setup screens in the system BIOS in order to get to these options and the terminology used may differ slightly from what this discussion is using. Below are certain configuration options that should be looked for:

Note that all, some, or none of these options may appear in the users System BIOS. For some computers new versions of the BIOS are needed or a specific utility might be needed to gain access to the options. The utility may also be referred to as ICU "ISA Configuration Utility". Sometimes these options are hidden under other not so obvious headings like "Plug and Play setup". Some Plug and Play sections allow the user to setup ISA card setting. These setting will include IRQ and memory usage.

If you are not sure how to access these options or whether they are enabled on the users machine you may need to contact the BIOS manufacturer or the motherboard manufacturer to find out how any of the above options are used.


Additional Tip:

8 Bit and 16 Bit ISA cards sharing the same memory segment pair

Addresses from A0000 to BFFFF

Addresses from C0000 to DFFFF

Addresses from E0000 to FFFFF