After a long process of stabilising CPU CO offsets I finally turned my attention to RAM this weekend.
Previously:
- 6400 CL30 2x16GB G.skill sticks Hynx A, 9800x3d, x870e Tiachi Lite
- Setting EXPO defaults to to 2:1 mode so MCLK 3200 UCLK 1600 FCLK 2000 so I've just left this alone for weeks while I tuned the CPU overclock.
Change:
- I activate MCLK=UCLK in bios
- I try to stabilise 6400 1:1 and fail even pushing 1.295 SOC. Sad face.
- Settle on a stable 6200 at 1.2 SOC.
- Turn my attention to FCLK. Unstable at 2167, unstable at 2067. Even tried dropping SOC in steps 1.9 1.8 1.7 1.6 1.5. settled on FCLK 2000. Very sad face.
Then I run through all of the benchmarks on my list. (got them from the skatterbencher's 9800x3d overclock post)
Im getting single digit % lower performance on almost every benchmark running 6200 in 1:1 compared to 6400 in 2:1. Everything I have read and watched (buildzoids vid on DDR5) until now makes me believe this shouldn't be the case. I am confused men.