OC i7 8700k multipliers in relation to voltage
OC i7 8700k multipliers in relation to voltage
I'm just starting out with overclocking and I'm confused about how multipliers relate to voltage. Since I'm using only air cooling, I can't increase the voltage too much. I attempted to run all cores at 5GHz for testing, which worked well when only one or two cores were active, but after an hour of gaming it crashed. Now, the 8700k adjusts its tension based on how many cores are in use (e.g., 1:4.7 - 2:4.6 - 3:4.5 - 4-5:4.4 6:4.3). Based on this pattern, I lowered the multipliers in the BIOS to match the core usage. I changed the multipliers to (1:5.0 - 2:4.9 - 3:4.8 - 4-5:4.7 6:4.6) and tried adjusting the voltage, but I'm unsure how much to set it to fit these settings. I left the BIOS voltage in AUTO mode—should that be correct or should I set a specific value?
Adjust the voltages gradually. Begin at 1.3 and check for stability while monitoring temperatures. For me, I aim to keep voltages below 1.35 and ensure average temperatures under load stay under 80°C (average values, not peak). Consider using XTU to verify stability and measure temps. If stable at 1.3, proceed to 1.29 and continue the loop until it fails. If unstable at 1.3, move to 1.31 and repeat the process. Keep increasing until stability is achieved or temperatures exceed the limits.
I haven't experimented with overclocking in that way before; I didn't have enough cores to matter. I generally aim for all cores running at a constant speed.
You should calculate the stable core voltage and temperature by testing. Ideally, the system should crash to indicate it needs more power, provided you stay within the safe temperature range. Below 90°C is acceptable, but I prefer keeping CPUs at 80°C or below during heavy use.
It's difficult to decide whether the issue comes from insufficient voltage or excessive heat until you know the cause.
I think increasing the voltage could help achieve higher clock speeds, but you'll need to keep an eye on temperatures to be sure.
Adjust the voltages gradually. Begin at 1.3 and check for stability while monitoring temperatures. For me, I aim to keep voltages below 1.35 and ensure average temperatures under load stay under 80°C (average values, not peak). Consider using XTU to verify stability and measure temps. If stable at 1.3, proceed to 1.29 and continue the loop until it fails. If unstable at 1.3, move to 1.31 and repeat the process. Keep increasing until stability is achieved or temperatures exceed the limits.
Eximo:
I haven't experimented with overclocking in that way before; I didn't have enough cores to matter. I usually keep all cores running at the same speed.
You should calculate the stable core voltage and temperature by testing. The goal is for the system to fail to indicate it needs more power, while staying within safe limits. Temperatures below 90°C are acceptable, but I prefer keeping CPUs under 80°C during heavy use.
It's tough to decide whether the issue was low voltage or high heat until you know the cause.
I think a bit more voltage could help reach higher clock speeds, but you'll need to watch the temps closely.
I agree, I've never overclocked individual cores. This makes me even more eager for something like an 8700k to try out.