F5-8400J4052G24GX2-TZ5RK GSkill

[Hopper64]

Well I was able to pick up this kit but can’t get it stable on the Apex Encore with the 14900k. Best result was 1 minute 45 seconds of ramtest. Typically errors within 7 seconds. Using XMP1 with all timings on auto. 

VDD/VDDQ 1.5V.

MCC 1.5V.

SAV Manual Mode 1.37V.

CPU Input 2.0V.

Seemed to work much better with a bump in the CPU input Voltage. Reducing the SAV down to 1.15V doesn’t help. Tried several values in between of course. Lower value seemed to help some people with the same kit. Increasing the VDD/VDDQ induces as much instability as lower voltages. Tried reducing the MCC as well. Might be the IMC on this chip though. SP for the performance cores is 112 with the MC at 83 on bios 0601. Suggestions welcome. Continuing to tinker with free time. Thanks.

[Silent_Scone]

It has bearing on what you said in your previous post, which is that manual tuning to achieve XMP is unacceptable. Returns policy not withstanding, statements like this go against the makeup of what overclocking is regardless of how we dress it up or justify things to ourselves. Facts matter 👍. That said, GSKILL customer service is usually very good. 🙂

The QVL can’t make assurances for CPU variance, returning a memory kit does not improve the quality of the users IMC

[Fragbert]

You seem to be insistent that everything but the memory kit is to blame. There's an easy way to find out; exchange the kit and try again. It does not hurt to try.

XMP is marketed as turnkey overclocking, and priced accordingly.  How that affects one's perceived ethos of overclocking is inconsequential and immaterial.  

[Silent_Scone]

GSKILL hand binning is usually very consistent. Of course, there are exceptions to the rule. Returning the kit is always an option.

it’s not the perceived ethos, it’s what passes as electrically valid and what doesn’t. That’s why CPU binning exists. Anyway, hope some of this helps your perception. 👍

[popy5]

hello

I would like to purchase the gskill 8400 24 kit. Can I purchase it? I really need it.

[Hopper64]

Try Newegg.

[ndssp]

Same issue here, can't get it work on my 149k, mcsp 86, so I put my 139ks on, and it's somehow "stable" when I set SA voltage manual at 1.335v, passed mtpro7 400% and get immediate error on reaching 500%, no luck with anta777 extreme test either, always get error 14 at the end of the last cycle, AE Bios 0507

 

[Silent_Scone]

1.35v SA is quite high for 14th gen, mine likes a round 1.26 to 1.28

IVR may need to come up to 1.4 - 1.45v. Really depends on the CPU.

[ndssp]

I  let SA voltage auto for my 149k and it failed, above test was done on the 139ks, Gskill should share their voltage setting or at least include that in the XMP file lol 

[Silent_Scone]

That’s where people tend to trip over. VCCSA is  individual to that CPU. Especially up that high with frequency as the voltage window for stability can be quite narrow. Between 1.28v and 1.3v on my 14900KF is the difference between 10,000% coverage in Karhu RAM Test and a 400% fail.

[ndssp]

XMP passed I guess