No the S1 was not overclocked when I tried, what do you mean by doesn't power both blades from the same 12V string ? Are you refering to using only wires that come directly from inside the PSU and are not chained to other wires ?
On my PSU I have 2 PCIe-8 outputs which are splitted into 2 PCIe-6 connectors (Output
1 +
2 with connectors
1.1 / 1.2 /
2.1 / 2.1).
I can not power both blades of the S1 from the same output. I have to put one blade on output 1 and the other on output 2.
http://www.bequiet.com/admin/FileServer.php?src=be-quiet.net/volumes/PDM/_products/bn198/bn198_w_l_1.jpg&width=570