Download and install ATI Technologies Inc. RADEON X850 Series - Secondary driver

RADEON X850 Series - Secondary is a Display Adapters device. This Windows driver was developed by ATI Technologies Inc.. The hardware id of this driver is PCI/VEN_1002&DEV_4B69; this string has to match your hardware.

1. Manually install ATI Technologies Inc. RADEON X850 Series - Secondary driver

1. You can download from the link below the driver installer file for the ATI Technologies Inc. RADEON X850 Series - Secondary driver. The archive contains version 8.421.0.0000 released on 2007-09-28 of the driver.
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3. Start the driver installer file from a user account with the highest privileges (rights). If your UAC (User Access Control) is enabled please accept of the driver and run the setup with administrative rights.
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5. Go through the driver installation wizard, which will guide you; it should be pretty easy to follow. The driver installation wizard will analyze your computer and will install the right driver.
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7. When the operation finishes shutdown and restart your PC in order to use the updated driver. As you can see it was quite smple to install a Windows driver!
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There is no digital signature available for this driver.

This driver received an average rating of 3.5 stars out of 85277 votes.

2. The easy way: using DriverMax to install ATI Technologies Inc. RADEON X850 Series - Secondary driver

The advantage of using DriverMax is that it will install the driver for you in just a few seconds and it will keep each driver up to date. How can you install a driver with DriverMax? Let's see!

1. Open DriverMax and click on the yellow button named ~SCAN FOR DRIVER UPDATES NOW~. Wait for DriverMax to scan and analyze each driver on your computer.
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3. Take a look at the list of available driver updates. Scroll the list down until you find the ATI Technologies Inc. RADEON X850 Series - Secondary driver. Click the Update button.
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5. That's it, you installed your first driver!
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