Has anyone messed with the 6900 and even 6800 XT and configured the fast memory settings 2?

[waffl3ninja]

ok so i've been wondering if anyone has.  what i mean is having your fclk boost at 2300.  

 

[damric]

You talking about overriding in MPT? Never had any luck changing the fclk with that, too unstable.

[waffl3ninja]

i mean like the actual timings.  i'm trying to find to measure the ballpark of timings and voltage  so i can dial it in a lot better. also just installed my ev2c controller from elmor labs so i'm pretty stoked so see what more i can push this card to 

[bonami2]

I think i have that with my 6800xt too. I can't remember exactly if it helped in anything but it did almost nothing in 3dmark.

[GanjaSMK]

Just tossing in for extra reference - I'm on MSI Gaming X Trio 6800XT, fully updated Win10 and I do not  have secondary fast timing as an option with my setup (23.7.1 drivers). 

 

[Memmento Mori]

my 2 cents - but i have a 6900 XT

 

[bonami2]

Is fast timing the option we are talking about? I can enable that.

 

Rage mode is also supposed to improve performance

[waffl3ninja]

Let me also add that I have the elmor esc2 voltage controller and when you adjust the the timings settings in mpt. There's a complete write up on elmorlabs but it's all good I figured it out.  Can stably run 2312 mem with the fast timings 2. With soc offset and mem voltage on offset 2. Just waiting for some upgraded pcie female plugs and some caps. Also to unlock the fast 2 timings you need to vbios flash your card. Like my card is actually the toxic air cooled but after hours of using a microscope to read the tiny ass serial on my pcb and verified it's the same exact everything as the toxic extreme edition with the only difference being the bios. I used Ubuntu to flash my card. And it unlocked the features of the of the extreme edition.  Been running fine for over a year now. Sapphire pretty much told me if I'm wrong I would have bricked my card.  

[waffl3ninja]

the only reason i ventured down this rabbit hole specifically on my card is cuz back when the 23.5 drivers were really unstable i decided to try the pro drivers. and after i installed them my card on gpu-z was mysteriously being read as a 6950x.  which lead me to techpower up and looking up my vbios and low and behold my factory bios was the same version as all the 6950x's available.  then the news about the actual versions of cards came out and that really fucked with me lol  cuz my pcb was xtx-h after using atombios on linux to verify that. i was like why in gods name would they use the 6950x which the xtxk bios on a xtxh pcb.  so i have software limits of a 6950x but do not have a board that can stabley run those limits from the hardware aspect.. did more digging then came across the  the thread about the AMD FE liquid cooled card and how that was 18gbs memory so i pulled that vbios and opened it up to analyze it in atombios then i found that it had an  2 extra lines of code and it was 3 other vbios  versions . then looked those up on techpowerup and low and behold i found the what i guess you would say the original bios or base bios for the liquid cooled 6900xts well the ones that were AIOs so the asus, the gigabyte card the xfx and the toxic.  all with different version itterations. so i looked up the info for the toxic AIO  cards. and only the Extreme edition pcb and layout of the vrms matched my air cooled pcb.  the two limited editions versios both had their vrms in different areas and they weren't the same vrms and even the memory dies themselves were different.  did even  more research  and learned that the toxic 6900xt air cooled cards were actually the extreme editions cards and the reason they had been aircooled was cuz it was the first design for the 6950xt nitro and special editios cards. same exact heat shield. and probably because of cost and marketing they werent going to make more AIOs so they released the air cooled toxics with the 6950xt bios as actual hardware test for the 6950xt.  and like 5 months after all that research i suddenly remembered that when i went to the last computex event i met someone that could help me and he put me in contact with a former sapphire employee and thats hows i got the official from sapphire intstructions to make the mods and thanks to alphacool and their waterblock.   i have what i have now.  (sorry if my explanation was long but its something i find i should include as i guess what would be the lore of my thread question. and how much of a nerd i actually am. cuz it would have probably been easier to just buy a newer card but thers just something about the whole journey i went through that eventually lead me to joining this team.)  and i'm baked as a potato right now hahah.   

Edited August 6, 2023 by waffl3ninja