My 2600k is doing 4.4 GHz at 1.3 V on an Asus P8P67 Pro. I had to set LLC to high (50%) to get it completely stable. It doesn't completely eliminate vdroop, but it can maintain a load voltage of 1.28 V. I usually hesitate to use LLC because of the theoretical risks, but I really wanted to get at least 4.4 GHz. I definitely have no intention of going over 1.3 V.
I'm using an intel Matx p67 and 2500k and got 4.3 stable at 1.275v
Gonna stop here don't need anymore juice
Who says you can't o/c intel boards.
4.5 GHz @ 1.30v
Done now
I thought the golden standard was 24 hours?Wow, 13 hours on Prime. That's dedication
I thought the golden standard was 24 hours?
I thought the golden standard was 24 hours?
Bios is set to 1.25v @ 4.2GHz. This is where I decided to stay as I get max core temps around 60 here, and I don't notice the difference any faster.
Why does CPU-Z say 1.296v?
I'm still a little baffled by OCing with Sandy Bridge. This is my current understanding of it...
A stock 2600K will run at 1.6GHz when idle and 3.4GHz under load, but it can also jump up to 3.8GHz in Turbo Mode when some (currently unknown) amount of additional load is placed on it. So effectively it can scale from any value between 1.6GHz and 3.8GHz depending on load, and it falls out of Turbo Mode when it reaches a set thermal limit.
When you OC using just the Multiplier, you are only raising the maximum ceiling in Turbo Mode. Otherwise it still runs at 1.6GHz when idle and 3.4GHz under load. OCing with just the Multiplier does increase the maximum Turbo speed, but it also decreases the time until thermal limit is reached, at which point it'll fall back to 3.4GHz.
Is that correct?
You have voltage fluctuations probably. I'm stuck at 4.5ghz, 1.3v. I could probably go higher to 4.6 or 4.7, but I know i would need to increase the voltage and 4.5 is a good even number. 10 hours of IBT is enough for me to consider it stable.
It appears that having one loaded core doesn't bump up the voltage as much as it does with four loaded cores.
I'm still a little baffled by OCing with Sandy Bridge. This is my current understanding of it...
A stock 2600K will run at 1.6GHz when idle and 3.4GHz under load, but it can also jump up to 3.8GHz in Turbo Mode when some (currently unknown) amount of additional load is placed on it. So effectively it can scale from any value between 1.6GHz and 3.8GHz depending on load, and it falls out of Turbo Mode when it reaches a set thermal limit.
When you OC using just the Multiplier, you are only raising the maximum ceiling in Turbo Mode. Otherwise it still runs at 1.6GHz when idle and 3.4GHz under load. OCing with just the Multiplier does increase the maximum Turbo speed, but it also decreases the time until thermal limit is reached, at which point it'll fall back to 3.4GHz.
Is that correct?
You have voltage fluctuations probably. I'm stuck at 4.5ghz, 1.3v. I could probably go higher to 4.6 or 4.7, but I know i would need to increase the voltage and 4.5 is a good even number. 10 hours of IBT is enough for me to consider it stable.
I'd like to see what apps people are using to measure their temps when they report them. Those things tend to be notoriously inaccurate. I tend to lean towards using the BIOS-based temp measurements as being the closest to reality. Of course that's not feasible when you're running stress tests.