we want to create some vm's on older server. Its an HP ProLiant DL160 Gen5 with an Xeon 5405. So by the intel specs (http://ark.intel.com/products/33079) the cpu included the VT-x technology. But there aren't any settings in the BIOS for VT-x. It may be true that the bios not support vt-x but the cpu?
Greetings