The setup of 8700K at 4.7GHz on an MSI Z370 Tomahawk requires a significant amount of high voltage.
The setup of 8700K at 4.7GHz on an MSI Z370 Tomahawk requires a significant amount of high voltage.
Hi, I need to adjust my 8700K to run at 4.7GHz. I enabled Intel Turbo Boost and Enhanced Turbo in BIOS. However, my motherboard MSI Z370 Tomahawk is still overvolting the CPU to 1.52V. Since I'm new to overclocking, what settings should I configure in BIOS to ensure safety and stability? Should I set the CPU Core Voltage to 1.25V as an example?
Configure manual voltage at 1.350 and all cores at 4.7GHz – perform stress test. If it’s acceptable, adjust to 1.340 and repeat the test. Gradually lower the voltage until stability is lost. For better results, use a good cooler; you can experiment with 4.8-4.9GHz or even 5.0GHz. There are numerous guides for 8700K on YouTube. Keep in mind, the CPU may overheat.
Configure manual voltage at 1.350 and All Cores at 4.7GHz – perform stress test. If it’s acceptable, adjust to 1.340 and repeat the test. Gradually lower the voltage until stability is lost. For better results, use a good cooler; you can experiment with 4.8-4.9GHz or even 5.0GHz. Numerous guides are available for 8700K on YouTube. Keep in mind the CPU may overheat.
Vcore measured between 1.46 and 1.48 volts.
I know these numbers, but some of the settings are unclear to me. I'm just starting out and haven't changed anything before.
Turn off the Enhanced Turbo IF you plan to leave Vcore on auto. The board already adds more Vcore than needed when auto is on. Enhanced Turbo is an E-Z OC plus the extra voltage.
Load Line Calibration should not exceed the board's standard setting.
Disabled unless you run virtual machines – I think.
Power draw can reach up to 4096w or even 300w, but the CPU won’t ever consume that much. You should be able to achieve around 250w with some effort, though cooling would need to be quite intense...
Short duration is better; I didn’t realize it could last so long.
Current limit remains unchanged, as you’re not applying heavy workloads to the core clock.
The 8700K had a stock single or dual core turbo at 4.7 GHz, while the 7700K runs at 4.7 GHz regardless of core count. Considering this, why not attempt to enable MCE and test at lower voltages—such as 1.35 or 1.3—to check for stability? It might be that the final 100 MHz range could push temperatures beyond comfort levels too soon, so I’d also try 4.6 GHz with all cores active. Intel’s XTU simplifies entering these settings...