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How to Overclock an Intel 4770K Guide

hornybluecow    -   October 2, 2013
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How To Overclock an Intel 4770K: Results

Final BIOS Settings 4.2GHz:

Reaching 4.2GHz should not be a problem for most people. Some current chips do take 1.2v to reach it these settings and my BIOS settings below is only a guide to what you may have to apply in order to reach the same as me.

CPU Voltage
1.1v
CPU Frequency
4200
CPU Multiplier
42
CPU Ring Ratio
39 (3900)
CPU Ring Voltage
1.064v /(Auto)
System Agent Voltage
1.088v / (+ .250)
I/O Analog Voltage
1.016v / (Auto)
I/O Digital Voltage
-------    / (Auto)
BLCK
100
CPU Temp
68 °C

Final BIOS Settings 4.4GHz:

Up until 4.4GHz with only minor tweaks, I was able to run Prime95. Once you approach 4.5GHz, many of the voltages will have to be adjusted and tweaked. At 4.4GHz is when CPU Ring Ratio may need to be raised along with the voltage. Finally, do not forget about the Agent voltage! That one is completely dependent on a few different things, like speed of the memory, density (4 or 8GB modules), and slots used (1, 2, or 4).

CPU Voltage
1.2v
CPU Frequency
4400
CPU Multiplier
44
CPU Ring Ratio
39 (3900)
CPU Ring Voltage
1.176v
System Agent Voltage
1.088v / (+ .250)
I/O Analog Voltage
1.016v / (Auto)
I/O Digital Voltage
------     / (Auto)
BLCK
100
CPU Temp
73 °C

Final BIOS Settings 4.GHz:

For me reaching 4.5GHz was a journey with many failures along the way. One day it would boot and run Prime95 and the next time, Windows would not load. It took a while to sort it out by backing down to 4.4GHz and raising each until I settled on the below settings. Ultimately, I simply forgot about the CPU Ring, which caused it to crash every other time. The BIOS simply didn't save my last tweak done in Windows. My final advice is to write your settings down every time you make a change and take it slow.

CPU Voltage
1.25v
CPU Frequency
4500
CPU Multiplier
45
CPU Ring Ratio
42 (4200)
CPU Ring Voltage
1.2v
System Agent Voltage
1.088v / (+ .250)
I/O Analog Voltage
1.2v /  (+ .1950
I/O Digital Voltage
 ----- / (+ .1950)
BLCK
100
CPU Temp
78 °C

Final BIOS Settings 4.5GHz:

Below is a screenshot of the final BIOS settings for 4.5GHz. Like I explained above, plugging in these values will most likely not work for you. It's a matter of reaching a plateau and tweaking it from there.

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  1. How to Overclock an Intel 4770K Guide: Intro & Setup
  2. How To Overclock an Intel 4770K: BIOS Options
  3. How To Overclock an Intel 4770K: Results
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