I recently got the 2x48GB 6000CL28 set from gskill and applying buildzoid's ez 2x16gb timings worked (cleared 8h of y cruncher).
However, I would like to optimize for bandwidth, since I'm already using an X3D cpu. I got this set for more capacity to run LLMs in RAM, and it would be great to have them run even 0.1t/s faster.
My question: does increasing the FCLK increase bandwidth, even without increasing memory speed? I tried bumping speed to 6400 but no matter what values I tweaked it wasn't stable.
Any insight would be appreciated.
p.s. VDDIO should be 1.35 (mobo reports 1.38 in bios?) not sure why zentimings says 0.85
4 Comments
Yes.
But also if you can run 8000+ 1:2 mode
Yes increasing fclk will still increase bandwidth. If you’re stable there try setting vddg to 1.05v and running 2200
You should try going for 6200 first. At that VSoC it should actually be doable.
Plenty of voltage headroom on the RAM for tighter CL and other timings as well, if you can keep it cool.
Since you have a dual CCD CPU not really.
Dual IF at 2GHz can do 128GB/s reads. 128bit DDR5 6000 can do 96GB/s so you are limited by memory bandwidth.