The BIOS of this machine is quite old, it may be a pre-production version: dmi.bios.version: HCET01K1(0.01)
It was reported that a later bios can fixed it, but I can't find one, there is even no bios update posted on Lenovo website for this machine.
The BIOS of this machine is quite old, it may be a pre-production version:
dmi.bios.version: HCET01K1(0.01)
It was reported that a later bios can fixed it, but I can't find one, there is even no bios update posted on Lenovo website for this machine.