hi guys
At what level should i run IBT and LinX stress test in order to say my overclock is satisfactorily stable ?
Standard, High, Very High or maximum?

It seems i cant complete more than very high level (>4Gig Memory usage)...Its require extra voltage and produced more heat....

I see, thank you bro...
my setting as per my siggie..initially i managed to clock 4.5ghz @ 1.29vcore & complete 20 runs of IBT and LinX for high stress level (2GB mem usage) with the following reading:
- load vcore up to 1.35v
- Max core temperature 81'c
- Gflops kinda fluctuating between 113-116...

Gaming also seems stable without any crashes with above setting, and core temperature max around 65'c-70'c even @ 100% utilization.

However, when i try to run IBT @ 4GB memory usage, i got either IBT error message or BSOD on the 5th or 6th run...
It's only successful when i up the vcore to 1.32v, resulting in max core temp at 87'c, max vcore load 1.375....Have yet to try maximum (8GB mem usage)

I dont really aiming for 5Ghz or maximum benchies....My objective just for stable overclock for daily gaming usage at acceptable temperature...
I run IBT & LinX with all background application running which perhaps simulate the real usage environment..
I also enable Internal PLL Overvoltage & Vdroop set @ auto (=high).....
I disable EIST as well as Intel C-state...Disable Internal PLL seems dont have any effect to maintain the vcore from increasing during load...

Any advise very much appreciated

thanks bro

Wow, you are absolutely correct bro .....now i remember my freeze screen when i run Crysis2 DirectX11 HD at ultra setting 1600x900...
I thought its becoz of my GPU running out of juice...been running my unlock HD6950 at 900/1375 @ 1.175v
But downclock the gpu core to 880 seems solved the problem

Thank you for the feedback
will re-run crysis again later at 4.5ghz/1.32vcore and HD6950 at 900/1375 to see & share the result....