sergmann

Now you can try to play a little bit with timings to get better Mem score

Voltage settings are fine so far, you can try to boot with Memory Dive "Flare" for more stability and play a little bit with Mem-voltages. Usually I need with my G.Skill Kit 1,725/1,575 some of your timings are not really good, my mem score with 48gb is a little bit higher for 5,0/4,5 run

If you are using 13th gen cpu it´s usually pretty easy to boot 8k. On which board was CPU and Mem tested before? send your settings and we can check it together

it´s hard to run mem at high frequency together with high frequency on CPU because of temps.

8400 with cold CPU are pretty stable ?

Thanks guys! It makes fun to bench this chip

Have also only tested with last retail and 1.3v was enough for 8k+ CL34 and only 1.43v on Mem. But just on Air. It’s on the time to start testing with LN2 after I got first places in y-cruncher with 8 and 6 cores back ?

Jepp for 12th Gen good frequency

Thanks guys, couldn’t test more, all runs are done with 5l LN2, dewars are empty ?

it´s not memory from hicookie it´s mem spreader.

it´s only spreader makes from HiCookie some ppl got this special edition ?

In the last month I’ve used only retail bios versions. Let me try another one which can go higher with soc

Check first post and flash bios with gigabyte.bin and q-flash. For testing of max BCLK don’t forget to reduce memory frequency to 4K or lower to check what is possible with BCLK and Mem isn’t the problem. for high BCLK you should try slow mode and select it before you have pressed F10 ?

it looks good for 2x24gb

Perfect, you are welcome!

Have you checked first post? They are all x6 bios versions available

It’s only wrong read-out in bios. In os you will see 2x24gb and you can run 8k+

Very strong Mem and IMC!

I would go with the latest x6 bios. Better Mem-OC and all microcodes for 12th Gen CPU’s are included

12900k works great with X7e bios and AVX512. Non-k CPU‘s you must use old x6.. bios because with X7 microcode 09 don’t works fine

I guess it’s only one 12900ks with AVX512, not sure where you got it. I know only one german guy, who have played with it last year on Apex without problems with AVX512. check with latest X6 bios, if it still not work, I think Giga check a little bit more in the background for AVX512 as Asus bios have done it before.

Because 12900ks don’t have AVX512 support. Only 12900k have it

AVX512 Canberra only used with 12th Gen CPU‘s and special bios and only without e-cores. If your bios don’t have microcode 0x15 for AVX512 you can’t use AVX512. this tool is only to prevent AVX512 drop.

8400 are pretty easy if your Mem can do it also with tight settings. You can try my X7e 8600 and reduce only frequency for mem

My 8600 profile is just as example what is possible, but don’t forget I use prebinned memory and CPU. mid you use green modules, it’s possible that you must adjust voltages for it, try higher voltages for memory at first to get 8400 stable and then try 8533