Hello,

I have realized that on few Intel systems the AMD GPUs use double the power when they are on 1st slot compared to other PCIe slots. (I don't know about what Nvidia does)

I have tested this with two R9 280x'es and set them to a low power mode at 800mhz cpu/1000mhz memory at about 0.925v both and first GPU used about 18A-20A (at 12v) and the other one used 8A-10A current (checked using GPU-Z). Just to be sure that this was not related to the GPU, I have replaced the placement of the GPUs but still the same for the GPU which is connected to 1st slot.

I do not see this behavior on AMD FX CPUs or APUs. Did anybody else realize this? Do you know why this is happening or is there a solution?

Thanks!