Yep, does not help that much in idle but under load it can save ~10W.Originally Posted by KTE
CPU - 2300MHz (200x11.5) 1.175VID 1.160V Idle/1.152V Load
IMC - 1800MHz 1.050VID (near 1.0V)
Idle - 98W AC
Load - 165W AC
Wish I could do more testing but i'm looking for rought numbers at ref HT's in 2MHz steps so it whould take forever. So my current criteria is 20 minutes prime95, then i run cinebench10 and note the power consumption during rendering and the time the benchmark tool and the temps during the benchmark and in idle. That way I can calculate the "render enegry" required at given ref HT's. I will be finsihed in a few days.
That's the IMC limit before it starts failing. 1.0VID failed after 40 minutes P95 on one core.
He He, I found if you put a little more vid on the cpu you can go lower with the nb.I'm going to undervolt the CPU more yet and then see what I reach. Let's try 1.0V
Assuming the cpu can handle 100A and the nb 20A the average voltage needed can be calculated like this:
u = u1*4/5+u2*1/5
This average is very close for two different cpu vid/nb vid settings at the same ref HT, the diference is ~0,005V.
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