Think the chip will do more? Did it CB around -115? My W3540 was similar.

Yes it will do more, I ran out of ln2 so I didn't get enough time to test with memory settings and different cpu voltages.

how much is the full mode BCLK wall with ud9 board?

whit my ud7 si around 230BCLK

I was able to reach 248 for a superpi 32m run. That was on a 21x multi too.

RULE: It could be a CPU limitation, not necessarily the board.