C#获取的CPU 序列号ID如何都是一样的

C#获取的CPU 序列号ID怎么都是一样的？
public string GetCpuInfo()
{
string strCpu = null;
ManagementClass myCpu = new ManagementClass("win32_Processor");
ManagementObjectCollection myCpuConnection = myCpu.GetInstances();
foreach (ManagementObject myObject in myCpuConnection)
{
strCpu = myObject.Properties["Processorid"].Value.ToString();
break;
}
return strCpu;
}

怎么在每台机子上获得都是一样CPU ID？都是 BFEBFBFF0001067A

是不是方法有错？

------解决方案--------------------

C# code


        /// <summary>
        ///取CPU编号
        /// </summary>
        /// <returns></returns>
        public static string GetCpuID()
        {
            try
            {
                ManagementClass mc = new ManagementClass("Win32_Processor");
                ManagementObjectCollection moc = mc.GetInstances();
                string strCpuID = null;
                foreach (ManagementObject mo in moc)
                {
                    strCpuID = mo.Properties["ProcessorId"].Value.ToString();
                    break;
                }
                return strCpuID;
            }
            catch
            {
                return "";
            }
        }

------解决方案--------------------

http://www.codeproject.com/KB/system/GetHardwareInformation.aspx

C#获取的CPU 序列号ID如何都是一样的

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