What is Voltage and what does it do?
What is Voltage and what does it do?
I'm not unfamiliar with PC gaming, but I'm just starting to learn about overclocking. Yesterday I adjusted my GTX 1070's core clock to 2025 MHz and memory clock to 4300 MHz without changing the voltage. Could anyone clarify what voltage does during overclocking and whether it's safe to do so?
Raising the voltage may allow you to extend your overclock margin, but it comes with drawbacks. It generates more heat, which can restrict boost performance. It might also reduce the chip's lifespan. If done improperly—even if done right—it risks damaging the chip and turning it into a costly burden. Only increase voltage when you have adequate cooling and thermal capacity. Your chip should stay cool under full load (below 80°C) or you should use advanced cooling methods like water cooling to maintain low temperatures. For those new to overclocking, I recommend sticking to standard settings without altering voltages.
Raising the voltage may allow you to extend your overclock margin, but it comes with drawbacks. It generates more heat, which can restrict boost performance. It might also reduce the chip's lifespan. If done improperly—even if done right—it risks damaging the chip and turning it into a costly burden. Only increase voltage when you have adequate cooling and thermal capacity. Your chip should stay cool under load (<80°C) or you should use advanced cooling methods like water cooling to maintain low temperatures. For those new to overclocking, I recommend sticking to standard settings without altering voltages.
Manages the voltage level for GPU power. Beyond a certain threshold, your GPU may become unstable (you'll notice visual issues or crashes) if you continue raising frequency. Raising voltage stabilizes performance at higher frequencies. The drawback is that it leads to faster power usage and heat generation, more so than increasing frequency. Additionally, higher voltages might reduce the GPU's lifespan, even with cooling.
That said, your ability to boost voltage is usually limited (except with BIOS modifications), so typical overclocking tools won't cause damage. If you're unsure, it's safer to keep voltage unchanged.
I'm in agreement with tl hooker.
You won't fry the card, especially with newer models where the voltage allowance is minimal.
Unless you opt for a modified BIOS such as the one I use or a hardware upgrade.
they are right about the "it's unlikely to do harm". I was merely providing you with the complete list of options. Nonetheless, I still recommend sticking with stock voltage overclock as you have. If you decide to use water cooling, you might want to experiment slightly more with your voltages.
if it's not the reference cooler, increasing the voltage or whatever it permits probably won't significantly raise heat. however, it might not boost performance either. the gpu is generally safer to tweak its voltage compared to the cpu, since the cpu can handle too much voltage without issues. as long as temperatures stay away from thermal throttling, adding the extra 100mv or similar should be okay.