Overclocking my i5 4670k

[XenithRai]

Hi, I'm new to overclocking and would like to OC my i5 4670k. I've had it for a while and am ready to push its performance finally
My current rig:
MSI GD65 Z87 mobo
i5 4670k CPU with Hyper Evo 212+ heatsink
2*8gb RAM @ 1866MHz
MSI R9 280 clocked at 1125 core and 1575 memory
650W Rosewill Hive PSU

I know CPUs are all different and some can handle more than others, but do you think I can get 4.2GHz or more with my setup and if anyone has any experience, could I get some tables/guides to OCing this safely? I don't want to fry my chip or board.

 

[rolli59]

With that cooler it is very possible, almost certain!

 

[XenithRai]

What might you recommend for setting on the OC?
I'm trying to get it so my CPU isn't bottlenecking my GPU in games like Arma 3 and Star Citizen

 

[bicycle_repair_man]

To increase the overclock, all you need to do is access the BIOS and increase the CPU multiplier.

You can also adjust the VCORE to maintain a stable overclock and low voltage, which will lead to less heat. Leaving the voltage on automatic is fine, but the PSU will always allocate more than is needed.

To give you an idea of voltages, here are some figures I've come up with during testing of my 2500k.

4Ghz - 1.2V
4.2Ghz - 1.22V
4.4Ghz - 1.245V

You shouldn't need to allocate this much voltage as your processor is more efficient than mine, but it does give you a starting point.

If you haven't already, download Prime95 and HWMonitor or RealTemp, unless you have hardware temperature monitoring. Prime95 will let you push the CPU cores to 100% load, so you can test that the overclock is stable. This is the Small FFTs Torture Test. HWMonitor and RealTemp will let you keep an eye on the CPU temperature, so you know if it's getting too hot.

 

[K6-II]

Hi, I'm new to overclocking and would like to OC my i5 4670k. I've had it for a while and am ready to push its performance finally
My current rig:
MSI GD65 Z87 mobo
i5 4670k CPU with Hyper Evo 212+ heatsink
2*8gb RAM @ 1866MHz
MSI R9 280 clocked at 1125 core and 1575 memory
650W Rosewill Hive PSU

I know CPUs are all different and some can handle more than others, but do you think I can get 4.2GHz or more with my setup and if anyone has any experience, could I get some tables/guides to OCing this safely? I don't want to fry my chip or board.

I overclocked mine to 4.2Ghz with the evo 212, could go up to 4.5 Ghz but because my ambient temp is around 25 C, I decided to keep it cool at 4.2Ghz

 

[XenithRai]

Hi, I'm new to overclocking and would like to OC my i5 4670k. I've had it for a while and am ready to push its performance finally
My current rig:
MSI GD65 Z87 mobo
i5 4670k CPU with Hyper Evo 212+ heatsink
2*8gb RAM @ 1866MHz
MSI R9 280 clocked at 1125 core and 1575 memory
650W Rosewill Hive PSU

I know CPUs are all different and some can handle more than others, but do you think I can get 4.2GHz or more with my setup and if anyone has any experience, could I get some tables/guides to OCing this safely? I don't want to fry my chip or board.

I overclocked mine to 4.2Ghz with the evo 212, could go up to 4.5 Ghz but because my ambient temp is around 25 C, I decided to keep it cool at 4.2Ghz

What voltage settings did you use and you have the 4670k as well?

 

[K6-II]

Hi, I'm new to overclocking and would like to OC my i5 4670k. I've had it for a while and am ready to push its performance finally
My current rig:
MSI GD65 Z87 mobo
i5 4670k CPU with Hyper Evo 212+ heatsink
2*8gb RAM @ 1866MHz
MSI R9 280 clocked at 1125 core and 1575 memory
650W Rosewill Hive PSU

I know CPUs are all different and some can handle more than others, but do you think I can get 4.2GHz or more with my setup and if anyone has any experience, could I get some tables/guides to OCing this safely? I don't want to fry my chip or board.

I overclocked mine to 4.2Ghz with the evo 212, could go up to 4.5 Ghz but because my ambient temp is around 25 C, I decided to keep it cool at 4.2Ghz

What voltage settings did you use and you have the 4670k as well?

Yes I do have the 4670k, wich I consider it's a great CPU
@4.20 1.20v vcore - Bclk 100.2 Idle Temp: 31-38C Load/Game Temp: 40-55C

 

[XenithRai]

What does bclk stand for?

 

[K6-II]

What does bclk stand for?

Bclk stands for Base clock. Processor speed is calculated by multiplying two numbers: the base clock (bclk) and the multiplier.There are two ways to overclock your CPU: by increasing its multiplier or by increasing its base clock (BCKL) frequency. For example, the Core i5-4670K’s base 3.4GHz clock speed is achieved with a multiplier of 34 and a BCLK of 100MHz: 34 x 100MHz = 3400MHz, or 3.4GHz.

 

[XenithRai]

I bumped mine up and it looks like I may need to reapply thermal paste which may be a very difficult task to do haha
At that speed and voltage, cores 1 and 3 ran around 74-77c, core 2 ran around 80, and core 4 was between 68-71.

 

[K6-II]

When do you reach those temperatures when playing or just idle?. The temps are still high, make sure the cooler is right placed, no dust, you have to consider the room temperature too, when you reapply the thermal paste try to use the right quantity. If you get the same temperatures I'd suggest to go back to stock clock speed (3.4Ghz - 3.8Ghz) until you get a better CPU cooler like Noctua NH-D14 http://www.newegg.com/Product/Product.aspx?Item=N82E16835608018