hello,   Asrock J3455 (UEFI+1.04b+Intel 82576 )is OK,speed of  both upload and download is normal (100MB/S).when using onboard NIC with leagcy BIOS,the upload speed is abnormal and  unstable.   DSM can not be found when using onboard NIC with UEFI BIOS in 1.04b after installation of system.   Issue: when shutdown the system,the power is still on; the system failed to restart successfully.