i7 8700k Overclocking help
i7 8700k Overclocking help
I have an Asus STRIX z370E Gaming motherboard paired with that CPU. Before we start overclocking, here are my questions:
1) Will the overclock disable its turbo boost? Am I really required to do it?
2) Can I adjust the voltage after we find the right setting? Would adaptive mode help if the CPU isn’t performing much?
3) How long should I expect it to last with this overclock?
I’m aiming for a gentle overclock around 4.7GHz, so I just need some guidance.
You could turn off turbo boost and stick to a base clock as your maximum, but I wouldn't go that route. Instead, I'd raise the multiplier, which makes the CPU turbo higher—like x49 would reach 4.9ghz. I prefer letting my CPU lower its clocks during idle, as running at 4.9ghz constantly wastes energy.
I also use adaptive, and I don't feel the need to crank up voltage unnecessarily when it's not needed.
If everything is properly cooled and voltage stays within safe limits, performance should remain similar to stock speeds. The CPU might become outdated before long.
Hi Evvvvv,
1°/ With C-States and EIST enabled and CPU ration not in fixed mode, the frequency will vary according to the load.
2°/ Start by determining the lowest voltage required for a specific frequency using a fixed voltage, then switch to adaptive mode to adjust with the load.
3°/ 4.7GHz is the boost frequency thanks to the turbboost feature, ensuring it remains stable as needed.
It should continue until an upgrade becomes essential.
Rodolphe.
You could turn off turbo boost and stick with the base clock as your maximum, but I wouldn't do that. Instead, I'd raise the multiplier to let the CPU ramp up more gradually, like x49 where it would reach 4.9ghz. I prefer letting my CPU lower its clocks during idle periods—it's inefficient to keep it at such high speeds constantly.
I also use adaptive turbo, and I don't see a need to force high voltage when it's not necessary.
If everything is properly cooled and voltage levels are stable, the CPU should perform just as well as with stock speeds. However, performance gains might be minimal. For testing stress, avoid AVX features on a gaming PC; tools like prime95 version 26.6 or heavy benchmarks would be better choices.
It seems you're suggesting alternative ways to manage the system's performance. You mention not disabling turbo boost entirely but instead adjusting the multiplier to control how far the CPU can turbo. You also talk about keeping the CPU at idle speeds and avoiding unnecessary voltage increases. The idea is to balance performance with efficiency, possibly using adaptive settings and monitoring stability before committing to higher clock speeds.
Evvvvv,
He mentions that one could attempt to reach 4.9 since 4.7 isn't truly an overclock due to the boost frequency linked with the "enhanced turbo boost." Once the stable voltage for a specific frequency is achieved, it can be adjusted accordingly for that frequency. Rodolphe
rodolphe.viard:
What he says is that you might attempt to go to 4.9 since 4.7 isn't really an overclock due to the "enhanced turbo boost." Once you obtain the stable voltage required for a specific frequency, you can adjust it adaptively for that frequency.
Rodolphe
Sync all core is the method I use for overclocking. It's not affected by the count of active cores. Rodolphe.