Dell OptiPlex G1 Dell OptiPlex G1 Low-Profile Managed PC Systems Reference and - Page 69
dynamic, static device drivers, locking, NOTE: The locking feature of the ICU is valid only for Plug
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At the ICU window, select Exit from the File menu to exit the utility. If you have made any changes to the system configuration, you are asked whether you want to save the changes. If you click Yes, the ICU saves the updated system configuration information into NVRAM. If you click No, you exit the ICU without saving any of your configuration changes. If you click Cancel, nothing is saved and the utility continues to operate. The ICU includes a locking mechanism that enables you to allocate the system resources for all or for some functions of Plug and Play and PCI expansion cards. These expansion cards are dynamic, which means that they are allocated resources at system start-up. Device drivers that do not support this dynamic card configuration are referred to as static device drivers. To determine whether your expansion card has static device drivers, check the documentation that came with the drivers. If you are using a static device driver, you need to permanently associate resources with a Plug and Play expansion card, instead of relying on the default Plug and Play behavior. Otherwise, the device driver might not be able to find the card the next time the system boots. This procedure is referred to as locking a card. NOTE: The locking feature of the ICU is valid only for Plug and Play and PCI expansion cards. To lock or unlock all the resources and configurations for a Plug and Play or PCI expansion card, follow these steps: Complete steps 2 through 9 in "Installing an Expansion Card" in Chapter 6. See "Starting the ICU" found earlier in this chapter. A check mark next to Locking Enabled signifies that the feature is active; a Lock button appears on the tool bar. Using the ISA Configuration Utility 3-15