You will need
- drivers motherboard;
- drivers graphics cards;
First, make sure that the motherboard of your computer supports synchronous operation of two graphics cards. Refer to the documentation to the motherboard. Find notes CrossFire or SLI. These modes are used for video card companies, ATI and Nvidia, respectively.
Select display adapters, of which you will synchronize. It is important to understand that this situation is not suitable for all graphics cards. Buy two graphics accelerators from the same manufacturer.
Make sure that the video cards support dual-channel mode. When choosing a video card ATI (Radeon), you can use cards of the same series. This means that the devices should have approximately like this: Radeon HD 5xxx.
Remember that the real performance of a more powerful graphics card will be reduced to a weak adapter.
Turn off the computer. Install both video card in the PCI-Express slot. In this situation, the monitor cable should connect to the devices via a special adapter. Standard display connection to the video card will not improve the performance of the graphics devices.
In that case, if you plan to connect to the adapters multiple displays, do not use an adapter-bridge. This scheme will allow you to expand the image on multiple displays
Install the drivers for the motherboard. Use the set of files and applications that activates the SLI (CrossFire) mode of operation of videoadapters.
Update the drivers for video cards. Launch the application and activate dual channel mode graphics accelerators. Configure the settings for the graphics cards. Disable unnecessary functions. Note that you will not be able to individually configure each charge. This means that both devices must be activated option.
Advice 2: How to combine two cards
Modern motherboards are available with two PCI-Exrpess. This improvement allows the motherboard to support the work with two graphics cards. Two video cards work in tandem, improving the graphics and overall computer performance. Also, this hardware solution will help to stretch the picture on two monitors.
You will need
- - two graphics cards;
- - special connectors.
Carefully inspect the motherboard or refer to the documentation to her. On support work with two graphics cards would indicate the presence of two PCI-Express connectors, and mark SLI or CrossFire in the documentation or on the packaging. The connection type depends on the types of graphics cards. As a rule, connect only the same graphics card, that is, they must be from the same manufacturer and model of video cards must be identical.
Take two identical video cards. Make sure that both boards support the work in "command" mode. Examine the packaging or documentation on the video card — if it is a video card with Nvidia chipset, look on the package marked SLI, Radeon if – then mark must be CrossFire.
Install both graphics cards into the PCI-Express connectors, pre-unplugging power from the computer. Turn on the computer. After the operating system install to the hard drive software from the driver disk for the motherboard to activate dual graphics cards.
Implement the work of the two cards physically depending on the purpose of the modification. Connect the monitor using a special adapter, if you put two video cards to improve performance. Or connect the graphics card to two monitors, if you need to display a big size image. As a rule, two monitors can be connected with a single graphics card, so before combining carefully think about why you need it.
Do not experiment with hardware that does not support explicitly the dual mode operation. No additional firmware two graphics cards will not work together, if not met the above conditions.