Solved XMP profile for i7 6700 (non k)
Solved XMP profile for i7 6700 (non k)
Hey there, sorry for this question since I'm new. I have an i7 6700 i and also 4 RAM sticks from GSKILL 3000MHz (F4-3000C15D-16GTZB) on my ASUS Z170 MAXIMUS VIII RANGER motherboard. My memory speeds are currently at 2133, which is the max supported by my CPU, but I've seen others say it can run at 3000MHz with an XMP profile if the motherboard supports it. The issue is that when I enable XMP in BIOS, my PC goes black while it's running until I reset the CMOS. Is there a way to keep my memory at 3000MHz without upgrading? I've also updated my BIOS to the latest version.
Most probably, it is due to the existence of two different memory sets. Even with identical memory kits, employing two 2 DIMM units is equivalent to any other approach for mixing memory in the setup. There remains a chance of acquiring significantly different sticks despite having the same model. And even if both kits were purchased simultaneously from the manufacturer and originated from the identical production batch, it would still present a possible issue. The only certainty about memory usage comes when everything is packaged together in a single kit.
Did all four DIMMs come from one kit, or are these two separate kits of the same model?
Sometimes, four DIMMs need extra voltage to operate at the required speed, particularly with a locked CPU that has a much lower multiplier and core voltage.
Additionally, you may need to adjust several BIOS settings.
Are you suggesting that enabling XMP causes the system to immediately freeze or black out right after saving settings and closing the BIOS?
Thank you for your response... they are two separate kits of the same model.
Apologies if I was not clear. The screen turns black after saving settings and restarting (the PC restarts but displays a black screen and remains stuck). Also, when I turned on the XMP profile, it asked if you wanted to apply all core enhancements with XMP settings for better performance—select "No" for Intel stock operation. I tried both options and still encountered the same issue.
I think there might be a constraint on your motherboard
Even B365 is limited to 2666mhz
Z370 or even Z390 can exceed 3000
I reviewed the specifications page for my motherboard and found it mentions 4 x DIMM slots with a maximum capacity of 64GB. It also lists DDR4 speeds up to 2133 MHz, non-ECC, un-buffered memory with dual channel architecture and support for the Intel Extreme Memory Profile (XMP).
You might want to boost each memory channel by 0.05v in the BIOS. If that doesn't work, it could be due to compatibility issues between the mixed memory at those speeds.
It is most likely due to having two different sets of mixed memory. Even if the memory kits are identical, using two 2 DIMM kits is equivalent to any other approach for introducing mixed memory into the setup. There is a chance you could end up with completely different sticks despite using the same model. And even if both kits were purchased simultaneously from the manufacturer and originated from the same production batch, it would still be a potentially tricky situation. The only certainty in memory usage comes when everything is packaged together in one kit.
Any other approach depends on hoping the kits or sticks will work well together, which often requires adjusting timing, DRAM voltage, and other parameters such as VCCIO and VCCSA.
My suggestions are mostly twofold:
Either bring both kits together and select one that includes four DIMMs, which is the optimal choice,
OR, as Phaaze88 suggested and I needed to clarify earlier, try enabling XMP settings before saving and exiting BIOS:
- Raise DRAM voltage by 0.005v
- Adjust VCCIO and VCCSA (System agent) voltage to 1.11250
This should strengthen the memory controller and improve stability.
Save your changes and exit BIOS.
If it still doesn’t boot, repeat the process, increasing the DRAM voltage another 0.005v for a total of 0.010v above the XMP setting. Verify that VCCIO and VCCSA remain at 1.11250; if not, save your settings and exit.
Repeat until stable. If you reach 1.4v on DRAM voltage and still can’t get it to work, further adjustments won’t help. In fact, by the time you hit 1.37v, it’s unlikely you’ll achieve stability through voltage alone.
At that stage, I recommend opting for a matched four DIMM kit.
Also, remember that having a locked CPU and not being able to overclock it might be the main reason memory doesn’t perform as expected. You could also try lowering the memory frequency to 2933mhz.