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First time Overclocking CPU (4790k, Maximus VII Hero)- need tips and some guidance

post #1 of 2
Thread Starter 
Hello,

Simple- I want to OC my 4790k Devil's Canyon (4,4 boost). I have Asus VII Hero MOBO and Corsair H105 AIO water cooler with Corsair SP120 Hight Performance fans.

Can someone write me down how should I start Oveclocking it, how to increase Voltage step by step and what programs use to test if OC is stable?

I aim at 4,7 or 4,8 if possible, as 4,6 will be pretty useless considering that it boosts itself to 4,4 anyway.

I appracite all the help!
Edited by Benny89 - 6/10/16 at 4:15am
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Tomb
(19 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 5775C 4.2 Ghz 1.36V Asus VII Hero ASUS GTX 1080 Ti STRIX OC 11 GB 2063/6000 24/7 G.Skill DDR3 16GB (2x8GB) TridentX 2133MHz 
Hard DriveHard DriveCoolingOS
SSD HyperX Savage 480GB SATA3 Seagate 3.5'', 2TB, SATAIII Corsair H105 Windows 10 Pro 
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XB271HU 1440p 165Hz Corsair K70 LUX RGB EVGA Supernova G2 1000 PHANTEKS Enthoo Evolv ATX Tempered Glass- Black. 
MouseMouse PadAudioAudio
Razer DeathAdder Chroma EXCO Scropion Athletics Edifier R1800BT SENNHEISER HD598 SPECIAL EDITION - BLACK 
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post #2 of 2
I've overclocked two i7 4790K's. I usually dial in 45x multiplier with the BLCK (Base Clock) on 100.00 MHz (or Auto if you want, should also run around 100.00 MHz by default). For starters

- I set Load Line Calibration for Core Voltage and VRIN (Input Voltage) on extreme.
- I set the VRIN voltage itself somewhere around the range of 1.7v-1.95v.
- Now the next few settings I'm about to talk about here are pretty much personal preference and is up to you if you to enable it or not. I keep my Intel C-States all Auto or enabled since I've started doing any overclocks on pretty much most Intel CPUs. Only gave me slight issues very long time ago when I was overclocking Intel Core 2 Quad CPUs.

- With the CPU Voltage I start at around 1.25v and work my way up until I can boot into windows.
- Once you can boot to windows without any problems I start up a program for stress testing, it's either Prime95 v28.9 or AIDA64 v5.60. I run these for a desired amount of time to call it 'stable'. I do around 15 minutes to an hour. Others will say it might not be enough, while that is true it's of course better to test it for longer periods of time and use different sorts of applications to stress test. Playing games is one way of testing stability but it wouldn't cover most workloads on your CPU for it to be stable enough.
- With hardware monitoring I use RealTemp to monitor the CPU core temperatures in real time and I use HWinfo64 to monitor the CPU Voltage, VRIN (Input Voltage), Cache Voltage and some other voltages if needed.

When you BSOD or crash when trying overclocks I increase the voltage up by 0.01v increments until it works properly. If a stress test passes with the CPU voltage you have set, I usually add 0.01v+ on top just in case of any chances of instability.
- Make sure to always stay under 85°C during stress tests so that you know that your CPU will not get too hot while gaming, rendering or any sort of stuff like that.

- Once you get your desired Core overclock stable you then start doing Uncore overclocking. I have my Uncore Frequency at 4200 MHz (42x) because I didn't want to tweak it that much. You use the cache voltage a.k.a ring voltage to stabilize the Uncore overclock. Somewhere around 1.150v to 1.250v should be enough for the Cache (RING) Voltage.

Again you can use stress testing to test uncore overclocking.

Lastly. Ram overclocking is optional if you want to do and should be done only after you stabilized the other overclocking above. Now I have overclocked 1866 MHz ram to 2400MHz by having loose ram timings and a ram overvoltage from 1.5v to 1.65v. I also increase the VCCSA (System Agent Voltage) and VCCIO / VCCIN (CPU I/O digital / analog voltage) by 0.15V+ to stabilize the memory overclock.

Here are my ram timings: 13-13-13-33 2T

You can use the overclocking guides below to assist you in overclocking your CPU:

http://www.overclock.net/t/1411077/haswell-overclocking-guide-with-statistics#

http://www.overclock.net/t/1490324/the-intel-devils-canyon-owners-club
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Gaming Computer
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Intel Core 2 Quad Q6600 Asustek P5Q-PRO Nvidia 9800 GTX+ Kingston DDR2 8gb 
Hard DriveOptical DriveCoolingOS
Western Digital 1 TB Pioneer Noctua NH-U9B Windows 7 Ultimate 64-bit 
MonitorKeyboardPowerCase
Dell Monitor Logitech G110 Antec 750W Thermaltake Aluminium Old Case 
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Logitech G500 Gaming Mouse Generic Mousepad Soundblaster 5.1 VX 
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