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post #4781 of 11695
Quote:
Originally Posted by skullbringer View Post

Quote:
Originally Posted by bardacuda View Post

But if the kit itself is rated for high clocks...wouldn't it only need its stock voltage, which itself should be some standard, safe, motherboard-friendly number like 1.35?

afaik the "bricking" is caused by increased ref clock, which is needed to get memory clocks higher than 3200 MHz.

this is likely to be fixed with uefi updates, but for the moment anything than 100 ref clock is considered "dangerous".

I thought the k7 has a bclk gen, so it can go above 100 without screwing with any of the rest of the settings? Or is that buggy right now?
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post #4782 of 11695
Quote:
Originally Posted by skullbringer View Post

you mean like running 1.5V to get 4.2 GHz? lol
http://valid.x86.fr/0nmqzz
Warning: Spoiler! (Click to show)


Nope. I dont think you even have the idea. I'm no CPU-Z believer.
post #4783 of 11695
Quote:
Originally Posted by Nighthog View Post

But wasn't the issue with the bricked Asus C6H too high SoC voltage? I think I read you used high SoC on your clocks?

I am not sure tbh. When my C6H "bricked", I ran 1.2V SOC voltage. After the 0902 fix bios was released, Elmor recommended not to go past 1.2V. (When my board bricked, this information was not yet available.)

I did not go over 1.2V to be exact. Though I dont know if this recommended max is also valid for earlier bioses or if 5803 had a lower soc voltage limit. When the recommended max is 1.2V, people might argue that exactly 1.2V is also asking for trouble. And also I do not know if maybe some llc increased the voltage slightly higher than 1.2V.

Also I set this soc voltage to get a higher ref clock running. For example with 1.1V SOC, ref clock above 120 MHz would not post.


tldr, I do not know exactly what is causing the issue. If I were a C6H owner now, I would keep SOC below 1.2V and also keep the ref clock at 100 MHz.
post #4784 of 11695
Quote:
Originally Posted by bardacuda View Post

I'm confused....is a high RAM clock actually dangerous for your motherboard's components somehow?
Quote:
Originally Posted by GreedyMuffin View Post

Nope, but high voltage might be needed to acquire high mem OC. That is what the dangerous part. :-)
Quote:
Originally Posted by bardacuda View Post

But if the kit itself is rated for high clocks...wouldn't it only need its stock voltage, which itself should be some standard, safe, motherboard-friendly number like 1.35?

What happens is RAM clock dictates "Data Fabric" clock, so if your at:-

RAM 2133MHz, DF is ~1066MHz
RAM 2400MHz, DF is ~1200MHz
RAM 2666MHz, DF is ~1333MHz
RAM 3000MHz, DF is ~1500MHz
RAM 3200MHz, DF is ~1600MHz

See info in my op my thread RAM Info / Data Fabric (DFICLK) and Uncore/Cache Info, so when pushing RAM speed as IMC/DF is working harder you need more SOC/VCORE, etc. IMO expatiated as we're going like "all core boost" scenarios. For example R7 1700 stock ACB is 3.2GHz, 3.8GHz ACB is like 18.75% OC.
Edited by gupsterg - 3/19/17 at 5:28am
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post #4785 of 11695
Ok cool. thumb.gif I was just confused for a minute, cuz he only really talked about changing ref clock and ratio, and the only voltage he mentioned was ram voltage @ 1.4, which is only 50mV higher than stock, and a bunch of ppl were all like 'Hey, woah, slow down there cowboy!'...so I thought maybe I was missing something about 'the dangers of ref clock'. biggrin.gif Like I say I'm a little out of the loop hahaha! All good now!
post #4786 of 11695
No worries smile.gif . Learning curve for me as well biggrin.gif . Besides OC'ing, it's that "element" that is a buzz for me wink.gif , something new to play with biggrin.gif .
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post #4787 of 11695
Quote:
Originally Posted by Neokolzia View Post

I thought the k7 has a bclk gen, so it can go above 100 without screwing with any of the rest of the settings? Or is that buggy right now?

lol I dont know for sure.

107 was the max ref clock I managed to get running stable, at a soc voltage of 1.1V.

But even at this "stable" setting, the board "bricks" from time to time, even over night when the system is off. Then I have to take the cmos battery out for 30s and start over.


Also, the latest bios of the G7K is F3b. I would rate this on par with Asus 5803, so not really reliable.
Sometimes vcore settings just do not save until the system is completely powered off, saving oc profiles does not work, RAM speeds of higher than 3450 MHz cause the system to boot extremely slow, with ref clocks higher than 120MHz it just refuses to apply the setting and says "could not apply settings due to misconfiguration".

So, yes, it is buggy right now. biggrin.gif
post #4788 of 11695
@mus1mus

"Steady as she goes" wink.gif .

My current 3.8GHz 2400MHz UEFI settings changes from defaults.

Warning: Spoiler! (Click to show)











CPU: 3.8GHz ACB = 18.75% OC
DF: 1200MHz = 12.5% OC
RAM: 2400MHz 14-14-14-31 @ 1T (stock for dimms)

DMM readings VCORE: ~1.344V, SOC: 0.944V, VDIMM: ~1.22V, VDDP: ~0.920V, 1.8 PLL: ~1.870V, SB: ~1.063V

System been on for ~30hrs continuous. These tweak settings ~10hrs f@h stable, gonna go for perhaps 18hrs+ then Y-Cruncher lengthy time wink.gif .

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post #4789 of 11695
Quote:
Originally Posted by skullbringer View Post

I am not sure tbh. When my C6H "bricked", I ran 1.2V SOC voltage. After the 0902 fix bios was released, Elmor recommended not to go past 1.2V. (When my board bricked, this information was not yet available.)

I did not go over 1.2V to be exact. Though I dont know if this recommended max is also valid for earlier bioses or if 5803 had a lower soc voltage limit. When the recommended max is 1.2V, people might argue that exactly 1.2V is also asking for trouble. And also I do not know if maybe some llc increased the voltage slightly higher than 1.2V.

Also I set this soc voltage to get a higher ref clock running. For example with 1.1V SOC, ref clock above 120 MHz would not post.


tldr, I do not know exactly what is causing the issue. If I were a C6H owner now, I would keep SOC below 1.2V and also keep the ref clock at 100 MHz.

Tiny Tom Logan from OC3D stated in one of his videos that 1.20v is the ABSOLUTE MAXIMUM you want you SOC voltage to be and then STRONGLY recommended not exceeding 1.15v.

In fact I believe it was in his CH6 Mobo review!
    
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post #4790 of 11695
Quote:
Originally Posted by Scotty99 View Post

Well so far it seems i am both lucky and unlucky.

My 3.8ghz 1.248 OC seems super stable with good temps on stock cooler, but my ram is stuck at 2400. Hope when asrock releases a new bios to fix ram it does not mess with my OC lol.

Have you tried lowering the timings? Lower timings and a bit of voltage got me to 2933.
Quote:
Originally Posted by Scorpion49 View Post

I've taken all of the fans off of the board, right now I have an AP-45 on the heatsink at about 2000RPM, which moves a boatload of air. Fans aren't the problem. I'm still concerned that the last core won't idle, I may end up just returning all of it at this point its been nothing but a hassle for lackluster performance. The board refuses to shut down as well, it "turns off" but the lights and fans stay on. Seriously annoying.

FYI, ryzen master usually pushes like 50% load on the last core. That causes it not to park and increases "idle" temps since it uses resources.
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