I encounter some problems installing Ubuntu on e newly bought HP DC7700 workstation. After done some reading on the internet, I found out that there are some custom parameters to be used to perform the installation.
Since the problem is related to the ACPI, so ACPI sould be turned off in the boot menu.
We need to put these commands into the boot option
install noapic nolapic pci=noacpi acpi=off
Below is the screenshot for those who are using network (mini.iso) method
If you are using the normal cd installation, press F6 during at the menu page to enable custom parameter.
You will be presented with some preloaded parameters. Append the pre-existing parameters by adding “noapic nolapic pci=noacpi acpi=off” at the end of the line.