F5F Stay Refreshed Power Users Overclocking Assistance with boosting the i7 8700k performance while ensuring its longevity.

Assistance with boosting the i7 8700k performance while ensuring its longevity.

Assistance with boosting the i7 8700k performance while ensuring its longevity.

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dani2401
Member
226
02-19-2017, 11:38 PM
#1
Using an ASUS Maximus Hero X with a top air cooler is the plan. I’m not aiming for 5GHz, just targeting 4.8 GHz and can push it higher later if needed. Right now I’m a bit overwhelmed by the BIOS settings. I’m mainly focused on getting 4.8 with the lowest possible voltage for stability. I have a few questions:

1) What starting voltage should I set in the BIOS for 4.8 before beginning undervolting?
2) Which LLC mode should I use for 4.8 or should I disable it?
3) Are there any other settings I need to tweak?
4) What stress-testing software and version should I use for the i7-8700K?
5) Which tools should I use to monitor Vcore and VID?

I’m aiming for long-term chip health at 4.8 and want a solid starting point. Thanks in advance!
D
dani2401
02-19-2017, 11:38 PM #1

Using an ASUS Maximus Hero X with a top air cooler is the plan. I’m not aiming for 5GHz, just targeting 4.8 GHz and can push it higher later if needed. Right now I’m a bit overwhelmed by the BIOS settings. I’m mainly focused on getting 4.8 with the lowest possible voltage for stability. I have a few questions:

1) What starting voltage should I set in the BIOS for 4.8 before beginning undervolting?
2) Which LLC mode should I use for 4.8 or should I disable it?
3) Are there any other settings I need to tweak?
4) What stress-testing software and version should I use for the i7-8700K?
5) Which tools should I use to monitor Vcore and VID?

I’m aiming for long-term chip health at 4.8 and want a solid starting point. Thanks in advance!

S
s3tBR
Member
179
02-26-2017, 04:33 PM
#2
Open your bios and adjust the multiplier to 48, then restart your system. If it boots successfully, perform a stress test to check stability. Currently, run Intel XTU. If the system fails during the test or doesn't boot, revisit your bios and increase the v-core voltage by .01 to .05. Keep raising the voltage in those steps until the system stabilizes or average CPU temperatures exceed 80°C during the stress test.

For me, I prefer keeping my voltages under 1.35. Others may push them higher or lower; similarly, temperatures vary—some tolerate higher readings while others aim for lower averages. Spikes above 80°C are acceptable, but maintaining an average below that is important.
S
s3tBR
02-26-2017, 04:33 PM #2

Open your bios and adjust the multiplier to 48, then restart your system. If it boots successfully, perform a stress test to check stability. Currently, run Intel XTU. If the system fails during the test or doesn't boot, revisit your bios and increase the v-core voltage by .01 to .05. Keep raising the voltage in those steps until the system stabilizes or average CPU temperatures exceed 80°C during the stress test.

For me, I prefer keeping my voltages under 1.35. Others may push them higher or lower; similarly, temperatures vary—some tolerate higher readings while others aim for lower averages. Spikes above 80°C are acceptable, but maintaining an average below that is important.

H
Hydraz
Member
64
02-27-2017, 05:09 AM
#3
Open your bios and adjust the multiplier to 48, then restart the system. If it boots successfully, perform a stress test to check stability. Currently run Intel XTU. If the system fails during testing or doesn't boot, revisit your bios and increase the v-core voltage by .01 to .05. Keep raising the voltage in those steps until the system remains stable or average CPU temperatures exceed 80°C during the stress test.

My preference is to keep voltages under 1.35. Others may push them higher or lower; similarly, temperatures vary—some tolerate higher readings while others prefer lower averages. I aim for stable averages below 80°C, allowing occasional spikes above 80°C if necessary.
H
Hydraz
02-27-2017, 05:09 AM #3

Open your bios and adjust the multiplier to 48, then restart the system. If it boots successfully, perform a stress test to check stability. Currently run Intel XTU. If the system fails during testing or doesn't boot, revisit your bios and increase the v-core voltage by .01 to .05. Keep raising the voltage in those steps until the system remains stable or average CPU temperatures exceed 80°C during the stress test.

My preference is to keep voltages under 1.35. Others may push them higher or lower; similarly, temperatures vary—some tolerate higher readings while others prefer lower averages. I aim for stable averages below 80°C, allowing occasional spikes above 80°C if necessary.

N
nexusRawr
Member
198
02-27-2017, 06:07 AM
#4
Feelinfroggy777 : Adjust your multiplier in the bios to 48 and restart the system. If it boots, perform a stability check using Intel XTU. If the system fails or doesn’t boot, modify the v-core voltage by .01 to .05 increments until stability is achieved or average CPU temperatures exceed 80°C during testing.

For me, I prefer keeping voltages under 1.35. Others may tolerate higher values. Temperatures are acceptable up to 80°C with spikes, but averages should stay below that.

Thanks for your reply!

What about the LLC?
My motherboard has an LLC level from 0 to 7 and I’m unsure whether to enable it or leave it off. I think leaving it off would reset it to level 0, which might not be ideal.
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nexusRawr
02-27-2017, 06:07 AM #4

Feelinfroggy777 : Adjust your multiplier in the bios to 48 and restart the system. If it boots, perform a stability check using Intel XTU. If the system fails or doesn’t boot, modify the v-core voltage by .01 to .05 increments until stability is achieved or average CPU temperatures exceed 80°C during testing.

For me, I prefer keeping voltages under 1.35. Others may tolerate higher values. Temperatures are acceptable up to 80°C with spikes, but averages should stay below that.

Thanks for your reply!

What about the LLC?
My motherboard has an LLC level from 0 to 7 and I’m unsure whether to enable it or leave it off. I think leaving it off would reset it to level 0, which might not be ideal.

P
PsychoPugx
Member
210
02-27-2017, 08:25 AM
#5
Keep the LLC settings at their standard values. For a simple overclock, only adjust the frequency multiplier and v-core. All other parameters should remain unchanged.
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PsychoPugx
02-27-2017, 08:25 AM #5

Keep the LLC settings at their standard values. For a simple overclock, only adjust the frequency multiplier and v-core. All other parameters should remain unchanged.

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BaiFelicia
Member
231
02-27-2017, 10:00 AM
#6
Check if you should raise the v-core voltage and whether other parameters stay fixed by default.
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BaiFelicia
02-27-2017, 10:00 AM #6

Check if you should raise the v-core voltage and whether other parameters stay fixed by default.

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gmoney_1114
Junior Member
49
03-01-2017, 10:31 AM
#7
I aim to boost my i7 8700k to 4.7ghz across all six cores. Should I raise the voltage for the V-core? Must I keep other parameters unchanged by default? The answer depends on the specific chip. Certain processors handle higher frequencies with lower voltages, while others might need a V-core adjustment to maintain stability at that speed. It could be necessary, but it really depends on the device.
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gmoney_1114
03-01-2017, 10:31 AM #7

I aim to boost my i7 8700k to 4.7ghz across all six cores. Should I raise the voltage for the V-core? Must I keep other parameters unchanged by default? The answer depends on the specific chip. Certain processors handle higher frequencies with lower voltages, while others might need a V-core adjustment to maintain stability at that speed. It could be necessary, but it really depends on the device.