Vcore bios or cpu-z....neither. DMM
(digital multi meter)
1. You can't use DDR2 in your motherboard as the Venice IMC only supports DDR.
2. Not have a 1:1 ratio will probably not affect performance. If it does at MOST it is going to be 1% compared to running 1:1.
D88, Intel's need to run 1:1 at least becuase they still use the northbridge as the memory controller. AMD processors on the other hand use a integrated memory controller (IMC) so latencies between the processor and memory controller is basically nonexistant. Thats why you dont need a high clock speed for the RAM as with stock RAM speeds, the available bandwidth is more than enough for the processor so the cpu won't be starved of bandwidth.