how much memory i should bump? And what timing should i adjust?

1.5v
9-9-9-24
Command rate 2N

only apply on primary timing? secondary & third all is auto?

Let the subtimings set to auto.

when i do burnInTest the core #0 to #3 reaches almost 100C. its that safe? How to reduce the heat? by lower the VCore or multiplier?

Compare all the "a" cases to the "b" cases, the only functional differences in these two test conditions is the CPU TIM. Notice that the Intel stock CPU TIM outperforms the NT-H1 replacement TIM once the CPU-to-IHS gap is identical

(all the "b" cases are ~2-3°C warmer than the "a" cases)

And if we remove the paper shim and drop that IHS down onto the CPU (not perfectly zero of course, there is still some NT-H1 CPU TIM there after all) reducing the gap to as close to zero as possible then we get the "c" cases...and the temperatures show the expected fantastic drops we have all come to expect from delidding our Ivy Bridge chips.

Conclusion: The Intel stock CPU TIM is not the reason Ivy Bridge's run hot, and replacing the Intel stock CPU TIM is not the reason a delidded Ivy Bridge runs so much cooler - the benefits of delidding are entirely due to the resultant reduction in gap height between the CPU silicon die and the underside of the IHS.

On stress test as long as it's below TJMax 105C then you should be fine because in daily routine works you will not hit this kind of temp.

There are several ways to reduce the heat/temp:
Upgrade to a better air cooler/fans or watercooling etc if got budget
Reapply a better thermal paste
decrease vCore
decrease CPU PLL voltage
Buy a case with better airflow
If you dont mind to void Intel warranty, delid the internal heat spreader (IHS)
Etc....

Hi owikh84, the unit is normal for daily usage, not done any stress test atm. Already decrease the vCore to 3.9, just brought the CPU air cooler recently, no plan to replace it so fast, guess i need to replace the 120mm fan in the CPU cooler and another better case fan as well. Any recommended brand for PWM 120mm fan 2000rpm max yet low db for CPU and case fan (120mm also)?

120mm
500 ~ 2000 RPM (±10%) Up to 76 CFM
15.5 dBA ~ 26,9 dBA

i hope that it's a typo.

This fan might fulfil your needs:
Nexus PWM Series D12SL-12PWM 120mm

Not sure if it's available locally but you can always order from newegg MY.

Yea sorry its typo, actually is vCore 1.39. Thanks for the tips. Not gona try online purchases, its so unreliable, maybe look around in local store and c how.

can check out NB Multiframes. They have a PWM version which hits 2k rpm, I think. APES has them locally.

mind to provide source?

here you go

source

the PWM version is not listed, but they have. I was in their store today.

when i do some gaming, i got this BSOD.. any advice? 

Question for you guys here. If I were to OC my cpu and have a dual boot win 7 and osx machine, is it possible?

I might be too late to answer this but it is possible. I'm at 4.6GHz and still able to have dual boot Win 7 and ML.

Delided my 3770K and here is a 13 hours Prime95 stable 4.9GHz run.
captvizcenzo | 3770K | 4902.2MHz | Maximus V Formula | Water Cooling

Nicely done bro 
Your temps still allow higher OC, possibly 5.0GHz.