That's a step in the right direction. I'm pretty sure the system can change the fclk dynamically when all is on auto. try running CB20 and watch to see what speeds it hits. Don't forget that SW isn't always the most accurate
I have never heard of FCLK changing dynamically. voltage, core clock, etc; yes. FCLK, UCLK, MCLK?...no.
I can't find where Taichi reports Infinity Fabric speed in BIOS (when in auto mode) so I have to rely on software.
I ran CB20 got a 6900 score, FCLK did not change. CPU at ~4GHz AC OC. 76C maxT
3600RAM XMP; 1633 FCLK; no post. All stock/auto values.
I used reset button 3 times, no post.
I force powered off with power button...post...with 3600/1633?? what the heck, usually it reverts to stock settings by now.
Lets go further.
Pushed to 3600/1667 no post.
Post after one try.
Weird, when I was finding out how high FCLK could go; I had to go in 33MHz steps all the way to 1900 (1933 wasn't stable) [memory at 3200]. So maybe the Taichi board is just finicky when it comes to memory training??
Lets go further
R20 7088 @ 3600/1733
Made it to 3600/1766 & posted
3600/1800 did not post [code 8d, same as all other times]
reset, posted, & booted!
Set OC to 4300 [my easily stable OC with RM]
no post, reset, post; no boot
fixed Vcore 1.4
no post, reset, post & boot
R20 7617 @ 103C
Let's go all the way...
Go for broke?
Eh 3866/1933 didn't post. But that was fun.
I probably could if I gave memory some more voltage and played with Soc, VDDG/VDDP; I'll leave that for another time [& when I get an AIO or D15].
I found this entire process strange. I have tried nearly all these same settings and never got it to work.
But I randomly find that reset and let it boot multiple times works? Well I guess memory training works, call me a believer.
Very weird thing is after a reset the keyboard arrow keys don't work, +/- do & mouse does. Reboot fixes this.
Well..IDK what I was doing wrong before, but it's working now.
Setting back to realistic settings
Default everything [after a few reboots @ this setting I applied a 1.375v OC to DRAM, cuz it would sometimes not post at 1.35v]
R20 7105 CPU at ~4GHz AC OC. 81C maxT
RAM latency 67.3 & read/write is right under 50GB/s
P95 blend for 11min = stable-ish
So, all I need to do now is OC the core back to 4.3GHz, but I find it weird my RM OC thermal'd around 74c, but the 4.3 BIOS OC was 103c...?
Anyways, not sure what I did differently; but it's running smooth now