Different power usage on cards

[Hanno_R_]

Hi,

I have two 31S1P cards. If I run exactly the same code on these cards, then one card uses 155W, the other 175W. This is very consistent and even true when idle (125W vs 104@).

Why is there a difference? 

On a related note, will I ever see the nominal 300W power usage? 

Thanks, 
    Hanno

[Frances_R_Intel]

What happens if you swap the PCIe slots for the two cards? And are you using micsmc to monitor your power? Is there any other information in the micsmc output that could provide some light on the issue? (On the second question, you might not be using as much of the card as you think you are.)