4.7 GHz at 6700k with a safe voltage?
4.7 GHz at 6700k with a safe voltage?
Hello, I just overclocked my Skylake i7 to 4.7 ghz. The picture shows the voltage and temperature. What are your thoughts on this? Is the voltage suitable for regular use? I'm using the Kraken X61 with cooling, and it's in adaptive mode. Thanks.
It seems you're likely exceeding the recommended voltage range. The maximum safe voltage for Skylake is generally around 1.3 to 1.4V, which varies based on your cooling setup. You're applying a bit more than that. However, if the performance holds up during extended stress tests rather than just short durations, it might be acceptable.
It seems you're likely overestimating the voltage. The recommended max for Skylake is around 1.3 to 1.4V, depending on your cooling setup. You're exceeding that by a bit. However, if the temperatures remain below 70°C after 30 minutes of real-world testing, it looks acceptable. Some users in this forum adjust their settings to 1.45V or even 1.5V, but results vary.
I was trying to clarify that the main focus is on seeing 1.3 or 1.4V as the recommended max voltage for Skylake, but I’m not sure if Intel has a strict rule for this. The information you have about your motherboard, cooling system, and temperatures is what really matters—staying below 70°C is the best aim. A 30-minute test in RealBench might not be enough for me; unless you’ve been running it for hours, I’d advise sticking to lower temps. Different people might have varying views on this.
Alot of people consider 1.4v to be safe, but i wouldnt use more than 1.4v for 24/7 usage.
In a lot of guides you will see that they recommend 1.3-1.4v.
Here is a c/p about VID voltage reading.
''VID is the voltage the processor requests. Generally it is not a useful reading in HWinfo. Vcore when read in real-time in a tool like HWinfo is a measurement of the voltage actually given. When you put in 1.3v into core voltage in the BIOS, maybe only 1.25v is given to the cores under load. This discrepancy is called Vdroop. To counteract that you can simply raise the voltage you entered or you can use Load Line Calibration or LLC. This setting impacts the real-time Vcore reading and increases it. Voltage delivered can have very quick drops, so quickly that specialized gear is required to detect it. LLC helps counteract that.''
Pulssqt :
Alot of people consider 1.4v to be safe, but i wouldnt use more than 1.4v for 24/7 usage.
In a lot of guides you will see that they recommend 1.3-1.4v.
Here is a c/p about VID voltage reading.
''VID is the voltage the processor requests. Generally it is not a useful reading in HWinfo. Vcore when read in real-time in a tool like HWinfo is a measurement of the voltage actually given. When you put in 1.3v into core voltage in the BIOS, maybe only 1.25v is given to the cores under load. This discrepancy is called Vdroop. To counteract that you can simply raise the voltage you entered or you can use Load Line Calibration or LLC. This setting impacts the real-time Vcore reading and increases it. Voltage delivered can have very quick drops, so quickly that specialized gear is required to detect it. LLC helps counteract that.''
So CPU Vcore is the actual voltage that the cpu get?
and the 1.4v limit for skylake that most people talk about is the Vcore?
I was looking at the VID the whole time
😀
The VID represents only the reading from homework information. Additional monitoring systems will provide the actual core voltage.
Many users think 1.4v is safe, but I wouldn’t exceed it for continuous use. Various guides suggest a range of 1.3 to 1.4v. There’s a note about VID voltage—this is the voltage the processor asks for. In real-time monitoring tools like HWinfo, core voltage isn’t very useful. The actual Vcore measured is what’s being delivered. If you set the core voltage to 1.3v in BIOS, the cores might only receive around 1.25v under load. This difference is known as Vdroop. You can fix this by adjusting the entered value or using Load Line Calibration or LLC settings. These options affect real-time Vcore readings and raise them. Voltage changes can drop very fast, requiring special equipment to detect them. LLC can help mitigate this issue.
I suspect the issue stems from Vdroop. I observed that stability tests consistently fail during the H.264 Video Encoding phase (RealBench). The vCore value during encoding was lower than the one set in BIOS. This likely caused the failure due to Vdroop. I checked my BIOS for LLC support, but my motherboard lacks it, so I opted for Adaptive + Offset mode instead of Adaptive mode.
For the core voltage, I set 1.350v. For offset, I used +0.03v. This should yield approximately 1.38v maximum. To date, the test has run for about 42 minutes without crashing. At the encoding stage, the voltage is around 1.350v (as adjusted by offset), but during image editing it jumps to 1.416v then drops to 1.392v quickly—possibly due to offset or other factors.
I’m unsure why it exceeds 1.38v. For image editing, I doubt a voltage of 1.392v is necessary for stability. My 6700k processor seems stable at 4.7ghz if the voltage stays at 1.35v throughout. However, Vdroop occurs, and without LLC support on my board, I have to live with it.
See attached image.
Sorry for the poor English
😀
53 minutes of testing, max temperature reached 74°C.
By the way, the highest VID is 1.425V. Not sure if that’s relevant.
😀
On which motherboard you're doing this? I wouldn't suggest pushing an i7 to such high speeds without a solid voltage regulation setup.
Which motherboard are you adjusting the overclocking on? I wouldn't suggest doing it on an i7 with low voltage control. I'm using the MSI Z170A PC.