Received County dealers repair machine Lenovo b320 one machine, customer complain of machine fault for the graphics card driver update not, has been playing an exclamation point

After store engineer testing, fault for the graphics chip problems, the price to the customer, the customer agrees to repair the replacement card chip, machine repair

Measuring machine department and in accordance with the win7 system, repeated testing machines of various functions, perfect repair Lenovo B320 graphics driver hit.