Both of those boards are locked. You cannot increase the base clock, apply overvoltage, or increase the CPU multiplier. Even if you could increase BCLK, it would cause damage if abused and you could only do a 5% or so OC. So don't overclock without a unlocked board and CPU.
All i needed to hear was the 5% limit, which is like 160MHz for my Processor. So even if OCing was possible it isn't worth the effort