I am using Oracle VM VirtualBox. I've been trying to adjust the process of my Virtual Machine but the slider of the Processor on the Processor tab is disabled. As far as I know, VT-x should be enabled on the Acceleration tab, but the problem is that tab is also disabled. I tried to enable 3D acceleration on Display, but the process just improved a little. There is also an issue on adjusting the Base Memory of the VM such as it only considers upto 3175 mb.
Upon checking BIOs, Virtualization Technology is already enabled.
This is the spec of my HOST machine:
Processor: Intel(R) Xeon(R) CPU E5620 @ 2.40GHz (16CPUs)