Ensure the PCIe card is securely seated in a PCIe slot and the computer is turned on. Step 2: Run the Installer Download the from the WCH website. Run the executable file as an Administrator.

By keeping your driver package updated and correctly configuring your application's I/O port address space, the CH351Q parallel port card will cleanly extend the operational lifespan of your critical legacy hardware. To help you get this up and running, please tell me: Which are you currently using?

The CH351Q is a PCI-bus interface chip that converts the standard computer PCI slot into an asynchronous serial port, a printer parallel port, or a general-purpose IO interface. Key Technical Specifications

Change the default port address from 0x378 to your specific PCI I/O address (e.g., 0xE000 ). Save changes and restart the application.

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