Manuals

ISA Configuration: Dell� OptiPlex� 4xxLe (4XXDL)

ISA Configuration: OptiPlex 4xxLe (4XXDL)

The ISA Configuration Utility is used to tell the system what expansion cards are installed and which expansion slots they occupy. With this information, the system automatically configures Plug and Play expansion cards and PCI expansion cards and can tell how to configure ISA cards manually by setting jumpers or switches. Plug and Play cards and PCI cards do not contain jumpers and switches; they are configured only through software.

NOTE: Dell will support only PCI video boards that meet the 2.0 PCI bus specification.

Whenever adding, removing, or repositioning an ISA expansion card, use the ISA Configuration Utility to reconfigure the system. The utility reads the card's corresponding configuration file (.cfg file), which describes the card's characteristics and required system resources. After the resources identified in these configuration files are assigned to all ISA cards, the ISA Configuration Utility assigns resources to all Plug and Play cards, thereby creating a conflict-free configuration.

PCI cards do not require configuring through the ISA Configuration Utility. A PCI configuration utility in ROM automatically reads the configuration information in the ISA Configuration Utility and assigns resources to the PCI cards accordingly. If the PCI configuration utility is not aware of an installed ISA card, resource conflicts can arise.

Installing the ISA Configuration Utility

The ISA Configuration Utility can run from the hard-disk drive only if MS-DOS� is being used. Although Dell recommends running the program from a diskette only, it runs considerably faster from a hard-disk drive than from a diskette.

NOTE: The ISA Configuration Utility must be run from a diskette if an operating system other than MS-DOS is being used. Any expanded memory manager must be disabled before installing the ISA Configuration Utility. Once the installation procedure is complete, it can be reenabled.

To install the ISA Configuration Utility for MS-DOS on the hard-disk drive, insert the ISA Configuration Utility Diskette 1 into drive A, type the following line, and press <Enter>:

a:install

Then follow the instructions on the screen. After the installation procedure is completed and the MS-DOS prompt is displayed, remove the ISA Configuration Utility Diskette 1 from drive A and reboot the system before starting the ISA Configuration Utility.

Starting the ISA Configuration Utility

If the ISA Configuration Utility is running from the hard-disk drive, remove any TSR programs from memory before starting the utility. These programs take up space in the system memory even when they are not running, thus reducing the amount of memory available to the ISA Configuration Utility.

The ISA Configuration Utility requires 465 KB of conventional memory. If there is not enough memory to run the utility, a message appears on the monitor. If such a message appears, run the utility from a bootable diskette.

Memory can also be conserved by modifying the Configuration Manager for the ISA Configuration Utility. The Configuration Manager has a /nolock parameter that disables the CM_LockConfig and CM_UnlockConfig functions. This option disables the Lock Resources box in the Configuration Settings dialog box and saves 30 KB of memory.

NOTE: The /nolock parameter does not affect the Lock button or the Lock/Unlock Card item under the Advanced menu of the ISA Configuration Utility.

The /nolock parameter can be specified in the config.sys file using the following syntax:

device=c:\directory

\config\dwcfgmg.sys /nolock

NOTE: The default location for the Configuration Manager is in the c:\plugplay directory.

Another method of conserving conventional memory is to load the Configuration Manager into high memory using a memory manager, such as emm386.exe. For example:

device=c:\windows\emm386.exe noems


devicehigh /size=a700 c:\plugplay\config\dwcfgmg.sys

The next example loads the Configuration Manager into high memory with the /nolock parameter specified:

device=c:\windows\emm386.exe noems


devicehigh /size32e0 c:\plugplay\config\dwcfgmg.sys /nolock

To run the program from the hard-disk drive, type the following:

cd \plugplay\icu


icu

NOTE: Run the ISA Configuration Utility from the MS-DOS prompt, not from within Windows.

Making Selections in the ISA Configuration Utility

The ISA Configuration Utility window is the main window of the utility and the starting point for making any changes to the expansion-card configuration. This window displays a list of all ISA, Plug and Play and PCI cards currently installed in the system. The ISA Configuration Utility window contains menus and a tool bar.

Use the mouse or the keystrokes below to maneuver through each menu and dialog box:

Keys	Action
<Alt><x><y>	Displays the menu containing the underlined letter x and performs the operation indicated by the menu item containing the underlined letter y. (x corresponds to the first letter of the menu name.)
<Tab>	Moves from one control button or list to another.
Up- and down-arrow keys	Moves up and down items in a list.
<Spacebar>	Highlights an item in a list.
<Enter>	Selects the highlighted button or item in a list.

Viewing Resources

The ISA Configuration Utility displays all resources currently used by the system. To view all the system resources,
select System Resources from the View menu. The System Resource Usage dialog box displays all resources
currently used by the system.
To determine which card uses a particular resource shown in the System Resource Usage dialog box, select the resource
in question and then click on the Used By Card button. The Card Resource Usage dialog box appears with the information.
To view the resources that a particular card is using, select the card from the list displayed, and then select the Card
Resources item from the View menu or click on the View button. The Card Resource Usage box displays the resources
assigned to that card.
Save the information displayed in the resource usage dialog boxes by clicking on the Print To File button. The ISA
Configuration Utility then prompts for a name of the file to create.

Adding a Card

Use the following procedure to add a listed card with the ISA Configuration Utility:

Start the ISA Configuration Utility.
Click the Add button, or select Add Card from the Configuration menu.
Click the name of the category of card that to be added. If the Add button
was selected in step 2, click OK for a dialog box listing the names of all available cards of that type.
Select the name of the card to be added.

NOTES: If the name of the card is not shown, select Unlisted Card at the bottom of the listing. Insert the diskette that was supplied by the manufacturer, click Yes, and specify the path from the Load Configuration File dialog box. Then click the Open button.
If the user did not receive a diskette, click No when the ISA Configuration Utility asks if a configuration file for the card is available, and enter the Card Name and the resources it is using.

To select the resources, click the Advanced button. To change any of the resource settings for the card, select the resource setting, and then click on the Settings button. Click the down-arrow next to the Configuration Choice box. Then click the setting from the list of available settings.

To change individual resource values for the current configuration setting, select the resource value to be changed and click the Options button.
Click the OK button in the Configuration Settings dialog box when finished selecting resources for the functions.
Turn off the system if the system configuration was modified, and change the jumpers on the ISA expansion cards to match the settings in the ISA Configuration Utility.

Modifying a Card

Modifying a card allows the system resources used to be changed by a client. This feature is helpful when adding a card that requires resources already in use by other cards or devices in the system.

NOTE: The resources of a PCI card cannot be modified, only viewed or locked and unlocked them.

To modify the resource settings for a listed or unlisted card, complete the following steps:

Start the ISA Configuration Utility.
Select the card from the list of installed cards in the ISA Configuration Utility window, and then select Modify Card from the Configure menu or click the Modify button.

NOTE: When modifying an unlisted card, the ISA Configuration Utility cannot display the valid resources for the card. Therefore, the manufacturer's documentation describing the settings must be used.

To add, modify, or remove a resource value, select the box beneath the resource to be assigned, and then select the Add, Modify, or Remove button.
Click the OK button to complete the card modifications and return to the ISA Configuration Utility window.
To change the resource settings for the card, select the resource setting, and then click on the Settings button. Click the down-arrow next to the Configuration Choice box. Then click the new resource setting from the list of available settings.
To change individual resource values for the current configuration setting, select the resource value that to be changed, and click the Options button located below the resource values.
When finished selecting resources for the unlisted card, click OK in the Configure Unlisted Card dialog box. If the card needs to be reconfigured, record the resource settings recommended by the ISA Configuration Utility. Click the Close button to accept the resource settings currently displayed.

Removing a Card

To remove a Plug and Play or PCI card from the system, the ISA Configuration Utility is not needed. However, it is needed for removing a ISA expansion card. Use the following procedure to remove an ISA expansion card from the computer system:

Start the ISA Configuration Utility.
Select the card from the current system configuration list in the ISA Configuration Utility window.
Select Remove Card from the Configuration menu or click the Remove button.
Click Yes to free the resources allocated to the card and remove its name from the list of active cards, or click No to cancel the operation.
Remove the card from the system immediately. Failure to do so can damage the system.

Locking Cards

The ISA Configuration Utility includes a locking mechanism that enables allocation of the system resources for all or for some functions of a Plug and Play card. Plug and Play cards are dynamic, meaning that they are allocated resources at system boot. Some device drivers support this dynamic card configuration, but some do not. Device drivers that do not support dynamic card configuration are referred to as static device drivers.

To determine whether the expansion card has static device drivers, check the documentation that came with the device driver.

NOTE: The locking feature of the ISA Configuration Utility is valid only for Plug and Play cards and PCI cards.

To lock the card resources or particular functions of the card, first enable the locking feature. Also, select a Plug and Play or PCI card from the list of cards installed.

To lock or unlock all the resources and configurations for a Plug and Play or PCI card, perform the following steps:

If it is not already installed, install the Plug and Play or PCI card. Then turn on the system. The Plug and Play card is configured automatically by the system.
Start the ISA Configuration Utility.
Select Locking Enabled from the Advanced menu in the ISA Configuration Utility window. A check mark will appear next to the Locking Enabled item to show that it is active, and a Lock button appears on the tool bar.
Select the Plug and Play card to lock or unlock from the Cards Configured in System list.
Click the Lock button or select Lock/Unlock Card from the Advanced menu.

Locking Configuration Resources

Individual resources for a card can also be locked. To do so, perform the following steps:

If it is not already installed, install the Plug and Play card. Then turn on the system.
Start the ISA Configuration Utility.
Select Locking Enabled from the Advanced menu in the ISA Configuration Utility window. A check mark appears next to the Locking Enabled item to show that it is active, and a Lock button appears on the tool bar.
Select the Plug and Play card that is to be locked or unlocked from the Cards Configured in System list.
Click the Modify button, or select Modify Card from the Configure menu.
From the Card Configuration dialog box, select the function to be locked or unlocked.
Click the Settings button. Modify the resource setting and/or resources offered on the Configuration Settings screen, if necessary.
Click in the Lock Resources box. The Lock Resources box toggles the lock state of the selected configuration setting to be locked or unlocked.
Repeat for any other configurations settings to be locked or unlocked. Click OK in the Card Configuration dialog box.

Saving the System Configuration

The system configuration can be saved to NVRAM. To do this, select Save from the File menu and then continue with the operation.

Exiting From the ISA Configuration Utility

At the ISA Configuration Utility window, select Exit from the File menu to exit the ISA Configuration Utility. If any changes have been made to the system configuration, the user is asked whether the changes are to be saved.

Clicking Yes saves the updated system configuration data into NVRAM and in the system.img file.

Clicking No exits the user from the ISA Configuration Utility without saving any of the configuration changes.

Clicking Cancel saves nothing, and the utility continues to operate.