Is my BCLK overclock safe!? (Ivy Bridge i7 3770 non-k)

[Jimboss99]

Hi all,
My motherboard is the ASUS P8Z77M-PRO.
I have a stable overclock of 4.3GHz on all cores:
Turbo ratio set to 4.1,
BCLK 104.9MHz
VCore under load: 1.136v

Firstly is this a good chip as I think the voltage is quite low for this oc.?
Secondly is this BCLK too high? Will my motherboard degrade faster? What's the maximum BCLK for Ivy bridge before unstable?
(i am running this oc as i am typing!)
Thanks, any help appreciated!

 

[Ilijas Ramic]

Its pretty good Try rising it more nothing can happend