[GIGABYTE Z690 Tachyon]

48 minutes ago, Vertex_FR said:

Hello, you need to find your own vddq cpu sweet spot. it can be 1.2V or 1.4 or 1.35 or 1.3
The value find must apss every benchmark you need. to find it some ppl use VST from Ycruncher to stress IMC at 7600C40 for 30min. the value used to pass it should be the value to be used daily/bench.

1.35 now and it seems stable for vddq cpu. So windows seems stable now and I can restart fine, open programs but stability will not pass. For example aida 64 memory stability. It will run couple minutes and turn red .. what is the next value I should be looking at? How do you know that? Even though aida will detect hardware failure I am ok in the windows. It is stable

[GIGABYTE Z690 Tachyon]

4 hours ago, Vertex_FR said:

Okay, I'm done With Z790 Aorus Elite AX. Now it's time to go with Z690 Tachyon.

From my study :

VCCINAUX help a lot to train, must be set to 1.9V
VCCSA 1.25V to 1.3V for 8000-8200C34 is good enough
VDDQ CPU need to be set to a sweet spot to get system stable. on Elite AX it seem to be 1,3V for my CPU but this voltage may vary depend on CPU used.
VDD2 1.4V for 7800C34, 1.45V for 8000C34 and 1.5V for 8000C34 tight / 8200C34

VDD and VDDQ mem must be set to sweet spot depending on the freq/memory profil. too much crash, too low crash.

For training, round trip latency is enable by default, So leave it to auto.

My voltage to bench GB3 8000C34 on Elite AX :

VCCSA 1.3V
VCCIN CPU AUX 1.9V
VDDQ CPU 1.3V
VDD2 1.5V (maybe less doable?)
 

VDD MEM 1.575V
VDDQ MEM 1.525V

Fast boot disable 
RTL training enable 
RDEQ2
Gear mode 2

 

My voltage to bench GB3 8000C34 on Elite AX :

VCCSA 1.3V
VCCIN CPU AUX 1.9V
VDDQ CPU 1.3V
VDD2 1.5V (maybe less doable?)
 

VDD MEM 1.625V
VDDQ MEM 1.575V

Fast boot disable 
RTL training enable 
RDEQ2
Gear mode 2

 

My voltage to bench GB3 7466C32 on Elite AX :

VCCSA 1.25V
VCCIN CPU AUX 1,8V
VDDQ CPU 1.3V
VDD2 1.4V 
 

VDD MEM 1.6V
VDDQ MEM 1.55V

Fast boot disable 
RTL training enable 
RDEQ2
Gear mode 2

This is amazing work! 
 

What really struck me is vddq sweet spot voltage. How do you know what is sweet spot? What do you look for? System boots? On my xmp 7600tg and z790 tachyon works great and auto voltage for:

vddq cpu-1.45

vdd2- hwinfo 1.44ish max 1.452

What I do not get is vddq cpu when oc to 8000. 1.45 vddq cpu will not even recognize memory code 54 blinking but it is perfect on xmp? If I punch in 1.3 it will boot but seems unstable. Sometimes it would pass bench and I would restart system and will not even boot. I am little frustrated with this non sense. Also maybe my voltage for memory is not where it needs to be.

7600 TG stock is 1.4 for vdd/vddq

8000 oc I set it at 1.45 vdd and 1.4 vddq. It boots but like I mentioned previous.

do you think this is too low of voltage for 8000? Do you have any recommendations?Thank you

 

[GIGABYTE Z690 Tachyon]

14 hours ago, Vertex_FR said:

okay... news Tachyon. 

i can easy train and bench 7600c32 with mdie but still can't achieve 8000c34 adie. i dont know why

I can post 8000 but it is unstable. There is user here that is helping me get stable. He has good setting.. vddq cpu 1.35, vdd2 1.45, dram 1.45 and 1.4 and this is for tg7600 kit

[GIGABYTE Z690 Tachyon]

3 hours ago, Vertex_FR said:

okay... news Tachyon. 

i can easy train and bench 7600c32 with mdie but still can't achieve 8000c34 adie. i dont know why

I get 8000 only if I raise vddq cpu and vdd2 cpu. Using tg7600kit. 

[GIGABYTE Z690 Tachyon]

43 minutes ago, Mahameru said:

You can see the "current" value i HWinfo is incorrect, it shows 3.825.. that's why the average value cranked up close to 1.5 and 1.45.. I use CPU VDDQ 1.35 and CPU VDD2 1.45 btw, even for high frequency mem clocking (>8200 MT/s).. well, I can show you screen (8000 36-46-46 running MemtestPro with proper HWINFO) later when I back home

Thank you. I will wait for it

[GIGABYTE Z690 Tachyon]

4 hours ago, Mahameru said:

What bios? try bios F2d first.. I use exactly the same memory as yours (TeamGroup 7600) and running 8000 36-46-46-128 daily. DRAM VDD/VDDQ 1.45V/1.4V, SA Voltage 1.2

 

Now that are look closer your dram vdd/vddq is avarage 1.5/1.45? Why would you say that you are runnnig 1.45/1.4? 
stock ram is 1.4 and you are running 400 mhz more by not increasing voltage of the ram just timing voltage?maybe you are running vddq cpu at much higher than 1.45?

[GIGABYTE Z690 Tachyon]

17 minutes ago, Mahameru said:

What bios? try bios F2d first.. I use exactly the same memory as yours (TeamGroup 7600) and running 8000 36-46-46-128 dram VDD/VDDQ 1.45V/1.4V, SA Voltage 1.2

Yes f2d… so your dram voltage is 1.45 and right below 1.4? What is your vddcpu or tx. I can not see On the photo? I see vdd2 cpu is 1.47 so thank you for that. Care to send me profile ?

[GIGABYTE Z690 Tachyon]

So, my z790 tachyon has no problem running xmp 7600 team group memory 1.4v

Auto settings are

vddq dram and vdd2-1.45 for both

dram is 1.4 

no issues at all….

I would like to oc this ram to 8000 or more  if possible but I am not sure what to try any more seems like 7600 is what I get. Maybe I just do not know what to do and maybe someone has good profile for this ram to send me.  
I tried keeping 1.45 vddq and vdd2 and raising 1.5V to ram to see if it would post 8000 but no luck. I tried lowering vddq and vdd2 to 1.4 and 1.43 no luck. I tried lowering voltage on the ram 1.45 and no luck. 
 

running 13900k 5.7 4.5 no issues… 

Again, ram kit is 7600 team group with 1.4 v stock… 

You can email me profile if you have good one and cpu setting do not matter I can change that.

 

i am starting to think gskill memory would be better.