Often, DVR software is bundled with the driver. Look for applications like "DVR Viewer" or older versions of "SuperDVR" that support the TW6802B chip.
Download and install Techwell TW6816 Audio - driver id 3814004
64-bit operating systems like Windows 7 64-bit require digitally signed drivers . Because the TW6802B was phased out prior to the widespread adoption of 64-bit architectures, official signed drivers are incredibly rare. dvr card techwell tw6802b driver for win 7 64 bit hot
But why is this topic still "hot"? Because Windows 7 64-bit represents a perfect storm: it is the last Microsoft operating system that many feel balances stability, driver compatibility, and low overhead for DVR tasks. The TW6802B, when properly configured, can deliver up to 8-16 channels of real-time video at 30 FPS (in CIF or 4CIF resolution) using the H.264 compression standard. However, the driver hunt is notoriously frustrating. Official support from Techwell (now part of Intersil) has long ceased, and generic drivers often cause blue screens, audio desync, or missing channels.
Because the official development for this chipset concluded before 64-bit operating systems became the baseline standard, standard executable installers ( .exe ) often fail to recognize the card or throw compatibility errors. You must deploy the files manually through the Device Manager. Step 1: Secure the Correct Driver Package Often, DVR software is bundled with the driver
Some 16-channel cards draw significant power from the PCI slot. Ensure your power supply is adequate for both the PC and the DVR card. Final Verdict
The vendor ID 1797 explicitly points to Techwell Inc. If your device manager displays these strings under an unrecognized "PCI Device" or "Multimedia Video Controller," your computer sees the physical card but lacks the software required to operate it. Technical Specifications: TW6802B vs. Operating Systems Specification Details & Compatibility Techwell Inc. (acquired by Intersil / Renesas) Primary Function Because the TW6802B was phased out prior to
As the computer boots up (before the Windows logo appears), tap the key repeatedly.
Extract your downloaded driver file (e.g., driver-techwell.zip or TW68XX_v1.2.0.0.rar ) to a dedicated folder on your desktop.
Many Chinese DVR cards (Kodicom, Geovision, Hikvision OEM) used TW6802B. Search for: