





Help, stability confusion on my hynix A die overclock 7800x3d
Specs:
B850m mortar
2. 7 7800x3d
3. 16x2 klevv cras v 6000mhz cl28
My process
**1. Ran ycruncher vt3 —> no error 2 hours**
\- Full clean bios
\- Set 6200mhz, fclk 2167, optimize profile: hynix 16gb, UCLK=MEMCLK, swap apu, IGPU disabled, Bankrefreshmode: Normal, vsoc 1.250v
**2. Set timings (Picture #1)**
**3. Ran extreme @anta777 —> stable 6 hours**
**4. Did some changes (picture #2)**
**5. Ran 1usmus v3 —> some errors —> ended up with picture #3 stable 1 hour 1usmus v3**
**6. Ran ryzen3d @anta777 —> many errors (picture #4 and #6**
\- Only tweaking voltage settings (VDD, VDDQ, VDDIO)
I followed the instructions from the post below and using VEII (?) cheatsheet to check tm5 error
https://www.reddit.com/r/overclocking/s/ZlIjUeCT5C
Any advice or recommendations to get my timings stable?
Edit: I’m suspecting SCL maybe to tight or my tRP can’t be set tight because I overclock my dram speed
Edit 2:
|tRP : 36 —> 38
|tRAS : 60 —> 63
|tRC : 96 —> 101
|tRDRDSCL / tWRWRSCL : 6 / 6 —> 7 / 7
|tWTRS : 4 —> 3
|MEM VDD : 1.4250V —> 1.4500V
|MEM VDDQ : 1.3500V —> 1.4000V
|MEM VDDIO : Auto —> 1.3500V
(The right-most is the stable 6 hours config)
Edit 3:
Sorry for my bad English in the title! I meant to say: I am confused about how to stabilize my Hynix A-die RAM overclock.
Update:
I’ve tried only changing tRP to 36 with my stable 6 hours config, failed
Tried changing only tRAS and tRC, failed
Changing SCL only to 6/6 and 5/5, failed
I think I already hit my timing’s wall