I using the E5-573.
After upgraded RAM and SSD.
Only cold booting is possible.
There is no option to delay booting in CMOS.
RAM 8G , SSD Kingmax 256G...
I called to ACER after service center... (here is south Korea)
They have no idea and they said to me " before several model had a same problem but E5 model is not that case...".
Plz advice to me.. how can I do something??