rooy :
hello i want help to overclock (4,5ghz) my pc i dont know about voltages ...any guide?
i must overclock my ram too? g.skill 32gb 2400mhz
cooling: corsair h100i liquid cooling
I have exact same setup except I have Corsair H80i and 1200axi supply.
I was having trouble getting the system to be stable let alone overclocking. However, I overcame the hurdle and I'm proud to say that I have a rock solid setting
And running the CPU at 4.2 Ghz to 4.338GHz under heavy load testing (p95) My current setting is even more stable than optimized setting as system does not shutdown anymore. ASUS need to fix this as it may discourage some folks as out of the box experience is not so GOOD. Do you experience sudden system shutdown ?
To get good overclocking you need to make sure you have good thermal paste (I used PK-3 from prolimateh). I put a thin yet even amount of thermal paste on both CPU and heatsink. The PK-3 is harder to spread than the famous AS5. The CPU temp never goes above 80C ( I use core temp 1.0 RC6). H80i temp vs CPU temp is ~20C difference at full load stress testing.
Make sure you have air flow across the VRM. It is very important to get stable voltage which will allow you to overclock better. I have to change my fan profile from quiet to balance to over come this. But I will purchase an antec spotcool for this in the future and maybe run my H80i fans in quiet mode (or quiet / balance mode).
Under system stress testing your CPU frequency tend to go down to 3.5Ghz (base frequency) and power = ~150W, to over come this you need to change the BCLK. Intel CPU tries hard to keep the CPU running at TDP, if you adjust the BCLK away from 100Mhz, the CPU firmware will de-activate this feature and allow you to run it above 150W TDP, thus allowing you to overclock above base frequency. I have good results with CPU Bus clock strap to 125Mhz than 100Mhz. My CPU power can go up to 180W and stay there for some time.
Sorry for the long ranting. Here are the important bios setup, the rest are set to default:
Let me know how it goes!!!!
==== Extreme Tweaker =====
Ai Overclock Tunner = X.M.P.
X.M.P = Profile #1 (DDR3-2401 10-12-12-31-2N-1.65V..)
BCLK Frequency = 131.5 <-- Adjust this higher or lower to overclock your CPU
CPU Strap = 125Mhz
CPU Core Ratio = Sync All Cores
Core Ratio Limit = 35 <-- adjust this higher or lower base on how well your CPU can overclock
CPU VCORe Voltag = Manual
CPU VCORE Manual Voltage = 1.3000 <-- Not sure if this help, default is Auto
===============DIGI+Power Control==============
CPU Load-Line Calibration = Ultra High
CPU Current Capability = 180%
CPU Power Duty Control = Extreme
VCCSA Load-Line Calibration = High
VCCSA Current Capability =130%
PCH 1.1V Switching Freq = 1.3Vx