G.Skill's F4-4000C14D-32GTZN

[XxMARINxX]

G.Skill Trident Z Neo 2x16GB 14-15-15-25 4000MHz kit.

I was picking parts on pc part picker and found out that the 10900k would not allow these ram sticks to work at full speed "The G.Skill Trident Z Neo 32 GB (2 x 16 GB) DDR4-4000 CL14 Memory operating voltage of 1.55 V exceeds the Intel Comet Lake CPU recommended maximum of 1350 mv+5% (1417.5 mv). This memory module may run at a reduced clock rate to meet the 1350 mv voltage recommendation, or may require running at a voltage greater than the Intel recommended maximum." does this require me to overclock cpu more? or do i need a different cpu(11900k gets same message)

[RONOTHAN##]

8 minutes ago, XxMARINxX said:

G.Skill Trident Z Neo 2x16GB 14-15-15-25 4000MHz kit.

I was picking parts on pc part picker and found out that the 10900k would not allow these ram sticks to work at full speed "The G.Skill Trident Z Neo 32 GB (2 x 16 GB) DDR4-4000 CL14 Memory operating voltage of 1.55 V exceeds the Intel Comet Lake CPU recommended maximum of 1350 mv+5% (1417.5 mv). This memory module may run at a reduced clock rate to meet the 1350 mv voltage recommendation, or may require running at a voltage greater than the Intel recommended maximum." does this require me to overclock cpu more? or do i need a different cpu(11900k gets same message)

You technically don't need to overclock the CPU, but the memory controller. These super high speed memory modules like these require a ton of tuning to get working, and running them at their rated speeds can reduce the lifespan of your CPU due to needing more voltage than recommended. You can get them and everything, and enable XMP and hope for the best since honestly you're likely to upgrade the CPU before you see it stop working, but IMO you're better off getting something a bit slower and not having to worry about it. Something 3600CL14 should be more than fast enough, and should be able to run within the recommended max voltage.

[Somerandomtechyboi]

Meh dont bother with high speed ram nor a 10900k

 

10850k is a better value if you overclock, otheriwse go for a 5800x cause cheaper board and better efficiency

 

 

Rams go for a 3200mhz cl16 kit or 3600mhz cl16 kit (cl18 succ balls, dont bother unless you want to use an apu)

[xg32]

it has nothing to do with the cpu oc, i have a lower bin and it takes 1.5v on the ram for cl15 and 1.65v for cl14 @4000, it's just ram, io, sa voltage, if you don't wanna bother with all that stick with 3800 or 3600.

[XxMARINxX]

Yeah im going with 4000MHz, 16-16-16-36 timings, only a difference of 1 ns, does not trigger parts picker message, i guess it just falls within spec.

[Guest]

On 9/16/2021 at 10:33 PM, XxMARINxX said:

G.Skill Trident Z Neo 2x16GB 14-15-15-25 4000MHz kit.

I was picking parts on pc part picker and found out that the 10900k would not allow these ram sticks to work at full speed "The G.Skill Trident Z Neo 32 GB (2 x 16 GB) DDR4-4000 CL14 Memory operating voltage of 1.55 V exceeds the Intel Comet Lake CPU recommended maximum of 1350 mv+5% (1417.5 mv). This memory module may run at a reduced clock rate to meet the 1350 mv voltage recommendation, or may require running at a voltage greater than the Intel recommended maximum." does this require me to overclock cpu more? or do i need a different cpu(11900k gets same message)

I'm not sure about most of the posts in the thread and the accuracy of claims.

 

So I'll make my own.

That particular kit is likely capable of 12-12-12 but at a much much higher voltage. 

 

As far as I know, this doesn't degrade the life span of a chip, but these newer chips haven't been around as long as my 8700K and 99% of the above claims have not run LN2 on their chips either. 

 

I can run 14's at 4000mhz 16's at 4200mhz and 17's at 4267. Memory controller tops out at 4300 before drastic timing changes or massive voltage beyond 1.6v.

 

Yes, I've run my (years old) set of b-dies between 1.5 and 1.6v daily. If you need evidence of any claims I've made to this thread, I can gladly provide you that. Just ask. 

 

Happy clocking! Just keep your gear cool. That's the important part. B-die 40-45c at load is your goal. Put a fan on em'.

 

Good Luck!

[freeagent]

Just throwing this out there.. But ^^^ that fella right there helped to teach me how to OC my B-Die and I had awesome results. Too bad my board as a limit of 1.85v on the mems 

 

Out of the B-Die available now, I would consider 3200C14, 3600C14 all flats on both, and 4000C14. Those are going to be your top B-Die bins, outside of the 5000MHz stuff.. probably.

 

1.55v is not much different from 1.35v if you blow on them a bit, so don't be shy.