QUOTE(ddww @ Jan 2 2016, 08:42 PM)
Hi, I'm back again. follow exactly what you've taught. Works great. Thanks a million!

however, nowadays i ran it at 4.5ghz and temp seems to be around 40 during idling and low 80 during aida84 (4 top option checked). the max temp seems too high for me. any recommendation for improvement?
Method #1:
If you use a premium air cooler such as NH-D15, it reduces temperature by 10-15 Celsius when performing high overclock, but it will costs 3 times more than Hyper 212X Cooler which is currently out of your budget.
Method #2:
Run CPU at a lower overclock or stock.
The current method is to evaluate whether those extra overclock GHz is actually beneficial in work load performance.
Example:
CPU at 3.8 GHz renders a 1080p 30fps 1 minute video in 4 minutes (60 celsius),
CPU at 4.2 GHz renders a 1080p 30fps 1 minute video in 3 minutes 20 seconds (67 celsius), = +7 Celsius for 40 seconds improvement
CPU at 4.5 GHz renders a 1080p 30fps 1 minute video in 3 minutes 10 seconds (79 celsius), = +12 Celsius for 10 seconds improvement.
So 4.2 GHz seems to be the sweetspot for performance and heat.
Method #3:
Ensure your cable are managed properly (placed behind the motherboard rear), so cool air flow will not be obstructed from front to the rear of the CPU. This method will reduce temp by 2~4 Celsius when done properly.
Method #4:
Re-evaluate overclock by reducing voltages till to its minimum stable overclock.
In Windows, set it to Balance instead of Performance Mode (100% always OC mode)
This post has been edited by asunakirito: Jan 2 2016, 10:13 PM