I5 8600K Stable 4.8Ghz Overclocking Configurations For Gigabyte MB
I5 8600K Stable 4.8Ghz Overclocking Configurations For Gigabyte MB
Hello,
I aim to reach a stable speed of 4.8Ghz on my system. I conducted tests up to 5.0Ghz and it passed the 3Dmark benchmark, but failed Prime95 for some reason. I found several online videos about overclocking an i5 8600k, though none were specifically for Gigabyte motherboards. Could you share your current settings—such as Vcore, Base Clock, BLCK Frequency, LLC, DRAM Voltage, etc.—that would help achieve this stable overclock? I’m aware each system is unique, but it’s still a bit confusing when others with different boards try to guide me and show settings I don’t even have.
In my previous attempt at 5Ghz:
Base Clock – 100MHz
Ratio – 50
AVX Offset – 0
Uncore Ratio – 45
LLC – Turbo
VCore Voltage – 1.290
(Disabled: Intel turbo boost, VT-D, and Intel Graphics)
My hardware details:
CPU – i5 8600k
Cooler – Noctua NH-U14S
GPU – GTX 1080 TI Aorus Non Extreme Version
MB – Gigabyte Aorus Gaming K3
RAM – HyperX Predator 3000Mhz 2x8 GB (16GB)
PSU – Seasonic Gold 80 Plus 850W
Thank you all for your support!
First, let's make sure we understand what you're asking about not passing Prime95.
What specific version of Prime95 were you using?
Which particular test did you run in Prime95?
Were you checking for thermal compliance or stability? Because these are very different goals.
For thermal compliance, you must start by using Prime95 version 26.6, selecting the SMALL FFT option and running it for 15 minutes. If this passes—meaning the temperature stays below 80°C—you may proceed to stability testing. If it fails, you should consider one of three options: improve cooling, reduce voltage, or lower frequency.
Initially, let's make sure we understand what you're referring to by not passing Prime95. Which version of Prime95 were you using? What specific test were you performing—thermal compliance or stability? Are you checking for thermal compliance first, or should you focus on stability instead? When evaluating thermal compliance, it's essential to start with Prime95 version 26.6, selecting the SMALL FFT option and running it for 15 minutes. If this passes and stays below 80°C, you may proceed to stability testing. If it fails, consider these options: enhance cooling, lower voltage, or decrease frequency. Once you successfully complete the thermal compliance test under the chosen settings, you can then move on to stability testing. Be precise—don’t skip steps or take shortcuts. The duration matters; don’t assume shorter times are equivalent to longer ones. Also, remember that even systems used only for gaming require thorough testing to ensure they remain stable under all conditions. For more detailed guidance, refer to the following resources: - - https://www.tweaktown.com/guides/8481/co...index.html
Darkbreeze: Before proceeding further, let's make sure we understand exactly what you're referring to by not passing Prime95. Which version of Prime95 were you using? What specific test were you running—thermal compliance or stability? These are quite different objectives. For thermal compliance, you should start with Prime95 version 26.6, using the SMALL FFT option for 15 minutes. If it passes and stays below 80°C, you may then move on to stability testing. If it fails, consider these options: improve cooling, reduce voltage, or lower frequency. Once you successfully pass the thermal compliance test at that setting, you can proceed with stability tests. Be careful—don’t skip steps. A shortcut won’t work. Even if you only use the system for gaming, stability matters a lot (some machines need full stability under all conditions). For more guidance, you might find these resources useful: https://www.tweaktown.com/guides/8481/co...index.html https://imgur.com/a/PF4pYlw This test took about 30 minutes at 4.8 GHz, with VCore at 1.3V, LLC Auto, AVX Offset off, and Turbo mode disabled. Temperatures stayed under 73°C maximum. I found the information helpful and think you have more room for overclocking now. What are your thoughts?
So, the thermal check is successful, but you must now validate the setup with Realbench over an 8-hour period. Should it fail, raise the voltage and retry. If raising voltage is necessary, re-test using Prime95 version 26.6 Small FFT for another 15 minutes to confirm it remains below 80°C before proceeding with a new Realbench run. No, I question whether you have much room for error since I really believe you won't pass Realbench at 1.3v with an LLC of 0. More likely, achieving stability will require moving closer to 1.35v with an LLC of 3 or 4, which could significantly boost thermals. You might even need to lower your overclock to around 4.7Ghz, possibly even less depending on the chip's performance. Conduct the tests. Don't rely on assumptions. Avoid shortcuts. Otherwise, you risk ending up with a system that appears stable but is actually flawed, leading to undetected micro-errors that corrupt your data before it's too late. Read this thread from my post down to the last comment.
The thermal check is successful, but you must now verify the setup with Realbench over an 8-hour period. Should it fail, you'll need to raise the voltage and retry. If raising the voltage is necessary, you must re-test using Prime95 version 26.6 Small FFT for another 15 minutes to ensure the temperature remains below 80°C before retesting with Realbench. I have some concerns about your ability to pass Realbench at 1.3v with an LLC of 0. It seems unlikely you'll succeed, so you might need to aim closer to 1.35v with an LLC of 3 or 4 to get strong thermals. Reducing your overclock to around 4.7Ghz could help, depending on the chip's performance. Please conduct the test without making assumptions. Avoid cutting corners. Failing will result in a system that appears stable but is actually flawed, leading to undetected micro-errors and potential data loss. For more details, refer to this thread from my previous post:
Are you checking if the memory is set up for XMP or any other special configurations? I've already told you what steps to take if it fails.