Overclocking i7 6700k
Overclocking i7 6700k
hello guys, i was just checking if using my i7 6700k at 4.4mhz with 1.390 volts would be okay if i increase it to 4.6mhz. i'm running a prime95 stress test and getting 68 degrees celsius. this is my first time testing, so any advice would be really appreciated. thank you.
The maximum voltage for RAM should not be touched. The max voltage for the CPU is as high as necessary for stability, but don't exceed what's required. For your question, 1.45 is the highest I'd suggest.
It doesn’t seem too bad, right? Were you forced to raise the voltage for stability? Did you install XMP 2.0 and adjust your RAM settings? I’d go ahead and ensure stability before pushing for 4.6.
It doesn't seem too bad to me! Were you forced to raise your voltage for stability? Did you install XMP 2.0 and adjust your RAM settings accordingly? I would do that and ensure stability before pushing for 4.6. Yes, I used XMP to achieve 3200 from my RAM and it's stable. What is the maximum voltage I should be able to increase to? And yes, I had to boost the voltage for stability.
This is quite a substantial voltage for the CPU in this overclock setting. At 1.38 volts you should be aiming for around 4.7 volts.
I'm not sure why people are so concerned about RAM voltage since since Sandy Bridge there have been warnings that anything above 1.5 is problematic, referencing Intel's warranty concerns... but checking the official Intel compatibility list shows that more than half of the entries were rated at 1.65 or higher, and going up to 1.7 was acceptable... with Mushkin (Hynix) at 1.94 it worked fine.
DDR4 memory operates at a lower voltage, and the current advice is that anything above 1.2 is problematic, but with higher speed RAM you'll need around 1.30. At 1.35 or even 1.40... and according to Intel's certified compatibility list, all of these are listed as compatible. You should be able to add a small margin of 0.05 to the voltage specified on the package. Depending on the modules used, perhaps you can push it further.
Here are some statistics from OCN about Skylake overclocking:
Average OC = 4.68, Median OC = 4.70
Average Vcore = 1.38, Median Vcore = 1.38
The stats on Sklake from Overclock.net show:
Many users mistakenly believe that setting a maximum Vcore in BIOS enforces that limit everywhere. We discovered with Haswell that this isn't true. If AVX instructions are available, you can expect about 0.13v above that.
I've set my Vcore maximum to 1.385 and during most of the RiG Real benchmark stress test it stays below 1.41. However, when AVX is enabled, it exceeds 1.50. Luckily RB is a benchmark focused on applications and its voltage only lasts for fractions of a second... synthetic tests are less reliable.
For better overclocking results, I recommend following the guide on Overclock.net.
http://www.overclock.net/t/1570313/skyla...statistics
Greens:
The maximum voltage for RAM is quite high, but I wouldn't even consider it. The CPU's max voltage should be just enough to keep it stable—don't exceed what's necessary. For your question, 1.45 is the upper limit I'd recommend. Keep in mind that setting it to 1.45 doesn't prevent you from exceeding it; peaks will still rise by another 0.30 to 0.40... AVX can push it well beyond 1.55.
That's quite a high voltage setting for the CPU in that configuration. At 1.38, you should be targeting around 4.7 GHz.
I don't understand why people get so concerned about RAM voltage since we've had warnings since Sandy Bridge about anything over 1.5 causing warranty problems with Intel... but when you check Intel's certified compatibility list, more than half the entries were above 1.65 and going up to 1.7 was acceptable... and Mushkin (Hynix) at 1.94 was fine.
Obviously, DDR4 requires lower voltage and the current advice is that anything over 1.2 is problematic, but with higher speed memory you can go up to 1.30. Going to 1.35 or even 1.40... and according to Intel's certified list, they're all compatible. You should be able to add about 0.05 to the voltage listed on the package without issues. Depending on the modules used, it might be possible to go higher.
Here are some stats from OCN about Skylake overclocking:
Average OC = 4.68, Median OC = 4.70
Average Vcore = 1.38, Median Vcore = 1.38
I have my Vcore max set to 1.385 and during most of the RiG Real bench stress test it stays below 1.41.
But with AVX instructions you can expect around 0.13v above that.
I've set my Vcore maximum to 1.385, and in most of the RiG Real benchmark, it doesn't exceed 1.41.
However, when AVX is enabled, it can go over 1.50. Luckily RB is a benchmark focused on applications and its voltage only lasts for a few milliseconds... synthetic tests are less reliable.
To achieve better overclocks at lower voltages, I recommend following the guide on OCN.
Thanks man, but the reason I was getting 1.390 volts was because I was running at 4.7 MHz, and I've lowered it to 4.4 with 1.30V now. Since I'm new to overclocking, I'm taking it slow, thanks for the links – appreciated!
Well then, 1.39 for 4.7 is only a bit above the average/median, around 0.01... it seems like things were okay.