If you had got your Radeon HD5970 unit without any AX1301-B1812 driver CD or the latter is lost, you may choose to follow the links below. Without a special Radeon HD5970 driver to your unit, you won’t be able to use all its Acer functionality. The basic AX1301-B1812 driver from Windows is only able to support the minimum Quadro FX1100 set thereof. You are really in need of a fully-featured authentic AX1301-B1812 driver.
For Radeon HD5970 download, please just follow the Edge Lx557 link.