user9205: Is there any difference in hashrate if I mine from mainboard with pci-e v1 v2 or v3. Also is there difference if I use x1 slot with extension to x16?

user9790: No, it does not matter. Cheap 1x-16x extensions may either burn out or not work properly though, a powered one is essential. 

9205: <p>Is there any difference in hashrate if I mine from mainboard with pci-e v1 v2 or v3. Also is there difference if I use x1 slot with extension to x16?</p>
 9790: <p>No, it does not matter. Cheap 1x-16x extensions may either burn out or not work properly though, a powered one is essential. </p>
