Find a fitting voltage for the XMP profile at 6700K
Find a fitting voltage for the XMP profile at 6700K
My RAMs are 3000 MHz G.Skill RipjawsV, and I have to enable the XMP profile in BIOS to run at 3000 MHz, since my motherboard Asus Z170 Pro Gaming only supports up to 2100 MHz without XMP. When I choose the XMP profile, I see this link: http://i.imgur.com/Hx4JJRq.jpg. If I opt for the All Core Enhancement setting, the DRAM voltage is set to 1.35V. During a CPU stress test (HeavyLoad for seven minutes), I observe a maximum temperature of around 74ºC (see image: http://i.imgur.com/YR9UPGV.png). Choosing the No option keeps the voltage at 1.35V, but the stress test results show a max temp of about 64ºC—roughly 9-10ºC lower than the All Core Enhancement setting (image: http://i.imgur.com/4sCjjTn.png). If I turn off XMP entirely and run the RAM at 2100 MHz, the peak temperature stays near 60ºC, which is even cooler by about 4-5ºC (image: http://i.imgur.com/1GNvWJo.png).
I’m trying to lower the voltage a bit while keeping the temperatures as low as possible, without changing any processor settings. I’m unsure how much to reduce or at what point to stop. I plan to perform stability tests to evaluate the new voltage levels. Which test should I run and for how long? Also, which voltage mode—Manual, Offset, or Adaptive—should I select?
Thanks in advance.
PS: I didn’t mention the system specifications before, but they seem relevant. The specs are around 6700k, Asus Z170 Pro, RipjawsV 3000, NH-U12S, etc.
Well shouldn't and can are distinct concepts. It's likely the memory won't operate at 3000Mhz unless it runs at 1.35 volts, which is the suggested upper limit for the CPU—built for 1.2 volts. If your aim is to lower temperatures without enhancing cooling, then reducing voltages will be necessary, along with a proportional drop in memory speed.
The default CPU core voltage settings are crafted for broad compatibility across various chips, adjusting dynamically to some degree. Running a lower core voltage could work, or you might push the stock voltages higher for significant overclocking. Each chip behaves slightly differently.
Keep in mind that the target frequency for DDR4 on Skylake is 2133 MHz, which is 866 MHz above that value.
It seems you're looking for guidance on manual CPU overclocking. Focus on researching techniques to boost performance while managing temperatures, and consider using tools like G.Skills or CPU-Z for timing recommendations. Adjust XMP settings and set memory voltages appropriately. On the CPU side, manually control core voltage and test limits before fine-tuning multipliers. For practical insights, check experiences from others who have overclocked similar setups.
It seems you're looking into manual CPU overclocking. Depending on your concerns, there are two main aspects to consider: managing temperatures effectively and achieving high memory speeds. You might find the recommended settings for your RAM on G.Skills or via CPU-Z useful, referencing JEDEC tables. To proceed, enable XMP and adjust the memory timings yourself. Set the voltage to 1.35V or lower, though this may affect performance at 3000Mhz. On the CPU side, manually control core voltage and use test results to fine-tune the multiplier. Most users manage to reach around 4.3-4.5Ghz on an i7-6700k without exceeding 1.4V. However, I haven't encountered anyone who has successfully overclocked a Z170 with an i7-6700k. Please check the link provided for more details. If you're not interested in overclocking your CPU, focus instead on keeping RAM speeds at 3000Mhz while minimizing heat. The XMP setting often defaults to 1.35V, which might contribute to overheating. Your current RAM matches this specification if it helps.
3000Mhz will need some CPU overclocking, I believe. It simply doesn't perform that well on default configurations. If you're looking for a middle ground, check if you have a memory profile for 2666 with marginally improved timings. I think the processor can function without overclocking and you might be able to lower the memory voltage slightly.
I’ve been going through some information about Skylake OCing lately, and here’s what I’ve learned.
I don’t think I should adjust the DRAM voltage to 1.35V, since that’s the voltage my RAMs use (F4-3000C15D) for best performance at 3000 MHz.
I’ve been told to lower the CPU Core/Cache Voltage, but what should the new value be? When I run my system with all settings intact, the BIOS lists the Core voltage between 1.264 and 1.280V. That makes me wonder—am I mistaken about needing a higher voltage for XMP profiles? Because if the stock configuration already requires that much voltage, then XMP might actually need even more.
I wasn’t aware that using an XMP profile meant not only adjusting RAM settings but also slightly overclocking the CPU itself. Yesterday I tested the IBT app in maximum stress mode for 10–12 minutes, and temperatures reached around 78°C. Under XMP, it means sticking to the stock Intel configuration.
It's clear that 'well shouldn't' and 'can' represent distinct concepts. It's likely the memory won't operate efficiently at 3000Mhz unless it runs at 1.35 volts, which is the suggested upper limit for the CPU—normally set for 1.2 volts. If your aim is to lower system temperature without enhancing cooling, then reducing voltages will be necessary, along with a corresponding drop in memory frequency.
The default CPU core voltage settings are crafted for broad compatibility across various chips, though they can be adjusted somewhat dynamically. Running a lower core voltage might work, or you could push the stock voltages higher for more overclocking potential. Each chip behaves slightly differently.
Keep in mind that the target frequency for DDR4 on Skylake is 2133 MHz; you're currently about 866 MHz above that, and the best setups only reach around 3600Mhz reliably. You don’t necessarily need to push your memory to 3000Mhz—there are many viable alternatives. Frequency isn't the only factor; timing improvements also play a role.
Bandwidth isn't crucial unless you're handling intensive tasks like rendering.
I believe you're overly focused on XMP labels. It's essentially a method for embedding faster memory settings inside the chip so that an Intel motherboard can interpret and apply them according to the manufacturer's specifications. While most boards will need XMP enabled to unlock more options, using XMP profiles (like Extreme Memory Profiles) often encourages overclocking, which activates additional overclocking capabilities.