F5F Stay Refreshed Power Users Overclocking Trying to run an i7-8086K faster by overclocking it?

Trying to run an i7-8086K faster by overclocking it?

Trying to run an i7-8086K faster by overclocking it?

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Kusiu4444
Member
170
05-10-2026, 07:26 AM
#1
Here is my question: How does the CPU ratio work with those three options like per core, turbo, or all core? What happens if I pick one over another? Do I need to change these specific numbers? Why would someone say they should pick a certain voltage for each setting? And what are all these voltages actually doing in the computer?
K
Kusiu4444
05-10-2026, 07:26 AM #1

Here is my question: How does the CPU ratio work with those three options like per core, turbo, or all core? What happens if I pick one over another? Do I need to change these specific numbers? Why would someone say they should pick a certain voltage for each setting? And what are all these voltages actually doing in the computer?

C
ChaoticCrypt
Junior Member
41
05-14-2026, 03:29 PM
#2
The 8700k has the same problem as the 8086k: it doesn't have a built-in heatspreader, so you need to apply thermal paste between the processor and the heatspreader to move heat away. This paste isn't good at conducting heat, which means temperatures get very high around 1.35V for Vcore. You'll need to try different voltages to find how low you can set it while keeping 5.0GHz stable; there is no single perfect answer here. If you have to push the voltage higher than 1.35V, you usually have to take the chip apart and swap out the old thermal paste for a liquid metal one so heat leaves better and temps stay down.
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ChaoticCrypt
05-14-2026, 03:29 PM #2

The 8700k has the same problem as the 8086k: it doesn't have a built-in heatspreader, so you need to apply thermal paste between the processor and the heatspreader to move heat away. This paste isn't good at conducting heat, which means temperatures get very high around 1.35V for Vcore. You'll need to try different voltages to find how low you can set it while keeping 5.0GHz stable; there is no single perfect answer here. If you have to push the voltage higher than 1.35V, you usually have to take the chip apart and swap out the old thermal paste for a liquid metal one so heat leaves better and temps stay down.

K
KH68
Junior Member
44
05-24-2026, 10:08 PM
#3
Thanks for helping me out, so now I need to try some experiments with voltage and see what works well too when it comes to temperature. But is there any danger or risk here? Can I break my CPU by testing at voltages like 1.30V or 1.250V? If the computer doesn't start up, will everything just stay off? Or what else might happen if the CPU hates that voltage?
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KH68
05-24-2026, 10:08 PM #3

Thanks for helping me out, so now I need to try some experiments with voltage and see what works well too when it comes to temperature. But is there any danger or risk here? Can I break my CPU by testing at voltages like 1.30V or 1.250V? If the computer doesn't start up, will everything just stay off? Or what else might happen if the CPU hates that voltage?

M
Miss_Okami
Junior Member
5
05-26-2026, 09:36 PM
#4
For the core voltage, keep it under 1.4V when overclocking for regular use. Lower voltages are generally safe, but if you set them too low, the computer might not start at all. In that case, you need to reset your CMOS settings back to default and then try turning up the voltage again. Usually, though, instability shows up in a stress test or as a blue screen when Windows tries to open, so it's better to catch those problems earlier.
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Miss_Okami
05-26-2026, 09:36 PM #4

For the core voltage, keep it under 1.4V when overclocking for regular use. Lower voltages are generally safe, but if you set them too low, the computer might not start at all. In that case, you need to reset your CMOS settings back to default and then try turning up the voltage again. Usually, though, instability shows up in a stress test or as a blue screen when Windows tries to open, so it's better to catch those problems earlier.

D
Drizzard_V
Junior Member
4
05-27-2026, 12:57 AM
#5
I made a few photos for you to look at. I am not sure which settings need changing, so please tell me if that's okay. Here are the links: https://postimg.cc/gallery/sDG2Vhp/06a6d760 Any help is welcome!
D
Drizzard_V
05-27-2026, 12:57 AM #5

I made a few photos for you to look at. I am not sure which settings need changing, so please tell me if that's okay. Here are the links: https://postimg.cc/gallery/sDG2Vhp/06a6d760 Any help is welcome!

S
Sneakyginger8
Senior Member
580
Yesterday, 09:00 PM
#6
Here is a rewritten version with simpler words and no changes to the meaning or perspective:

All Core SSE Speed All Core AVX2 Speed BIOS Vcore % Can do 8086K at 5.00GHz at 4.80GHz at 1.400V at 100% of capacity for the 8086K at 5.10GHz at 4.90GHz at 1.412V at Top 94% for the 8086K at 5.20GHz at 5.00GHz at 1.425V at Top 65% for the 8086K at 5.30GHz at 5.10GHz at 1.437V at Top 15% That is Silicon Lottery's binning stats about this 8086K I don't think that will work well with just a 1.25-1.35 volt core... You are missing some important details from the PC specs, like the CPU cooler... The memory is 4000MHz? 😗 And this one is confirmed to be stable - Memtest86, Prime 95 Blend mode, or Aida64?
S
Sneakyginger8
Yesterday, 09:00 PM #6

Here is a rewritten version with simpler words and no changes to the meaning or perspective:

All Core SSE Speed All Core AVX2 Speed BIOS Vcore % Can do 8086K at 5.00GHz at 4.80GHz at 1.400V at 100% of capacity for the 8086K at 5.10GHz at 4.90GHz at 1.412V at Top 94% for the 8086K at 5.20GHz at 5.00GHz at 1.425V at Top 65% for the 8086K at 5.30GHz at 5.10GHz at 1.437V at Top 15% That is Silicon Lottery's binning stats about this 8086K I don't think that will work well with just a 1.25-1.35 volt core... You are missing some important details from the PC specs, like the CPU cooler... The memory is 4000MHz? 😗 And this one is confirmed to be stable - Memtest86, Prime 95 Blend mode, or Aida64?