Brief Description
There should be a compatibility issue due to Intel Pine-View CPU with UEFI BIOS which has old USB-drivers in kernel.
Solution
We have been released latest std BIOS ver-26(E338AR26.ROM) with updated kernel driver for USB to support maximum USB devices without problems.
Remark
There won't be any issues for hot-plug or plug&play USB-devices after system boot-up in old BIOS itself.
This latest BIOS flash is needed when using special USB devices, otherwise no needed to flash BIOS!