9800x3D
X870 Asus TUF
Arctic 360 liquid freezer AIO
2x Active memory cooling fans (cheap Amazon clamp on)
I’ve tried nearly every possible tuning scenario for weeks. Hynix A Die GSkill. A month ago I didn’t know anything about ram OC. Unless someone sees something different to try, this config gives me zero issues. And it just works. No crashes in game. Smooth as butter. Memory temps don’t exceed 44c in OCCT large extreme avx2. Even less in game. The only auto settings used were tRAS and VSOC. tRAS caused instability with the usual numbers/formulas you typically see recommended.
VDDP 1.15
VDDIO 1.5
VDDQ 1.45
VDD 1.63 (Haven’t tested 1.62)
CCD 1050mv (could probably be lower)
IOD 950mv
High V DRAM enabled (obviously)
OCCT latency shows 71.59ns. Seems a tad high to me. 🤷♂️ but not really sure what is considered industry standard for 6400 @ 26/2200
Gaming for hours no problem. Legacy core tuning.
VT3 stable with 2 min passes for 30 min. CPU temps 76c max
Karhu 8+ hours overnight no problem (I haven’t been able to test longer yet because I use this PC for work also)
My SCLs won’t boot if set below 5 without turning on GDM. 5>4 in my bandwidth testing.
Bank swap APU
iGPU Off
Robust Training Mode Enabled
Command mode “Buf” (turns off GDM)
Nitro 1-2-1 (haven’t tried 1-2-0 or 1-3-0)
PBO +200 & All Core -30 w/10x Scalar – Pwr limit MB
W+R 1 GB block – 0.48 sec
Bandwidth – 84238MB/s
Having only a month or so to get my feet wet, I’ve learned a lot so far but open to learn as much as I can. They also say If it ain’t broke don’t fix it but 🤷♂️
4 Comments
super sick
do you need 1.63v on the mem?
Im abit skeptical of some of them timings, the fact they would be stable that low. I have the exact same setup and in NORMAL windows (not safe mode) my aida64 latency is 57ns. You sure that’s stable dude and not error correcting? Id look for performance regression personally and run some more tests. Also with my 16gb non binned a-die sticks i can get this setup stable at around 1.55 i think it is (ill check later). I dont think 1.63 is needed.
Edit: Memory Context Restore OFF