tony - maybe try to isolate the problem?
Turn the mutli's for cpu, qpi, uncore and ram as low as you can - then start raising block - you shoud be able to get to 200 or better!
turn multi's to -
cpu - x16? - if it will go this low?
qpi - x36
ram - x6
ram timings on auto.
To make sure voltages are not your problem - set voltages:
cpu - 1.4
qpi - 1.34
dram - 1.64
make sure all the c's and eist are off.
maybe start with HT off
start at a bclock that has worked before and move up from there.
Once you know your mobo's max bclock you can move on to memory or cpu ocing.