Overclock.net › Forums › Hardware Vendors › Silicon Lottery › Z370 Fatal1ty K6 and Z370 Extreme4 motherboard QVL.
New Posts  All Forums:Forum Nav:

Z370 Fatal1ty K6 and Z370 Extreme4 motherboard QVL.

post #1 of 19
Thread Starter 
I noticed on your Coffee Lake QVL page you recently removed the Asrock Z370 K6 Fatal1ty and Extreme4 motherboards.

Could you please specify why they were originally added to the QVL and then why, after being added, they were abruptly removed?
post #2 of 19
We have had reports of stability problems with these boards that we have not yet been able to replicate in house, so we took them off the list for now. I would love to hear feedback for all of you using these boards with one of our processors. It has been mentioned to me that there may be two variants of each board with different components, which might be related.
post #3 of 19
Thanks for the information.

There's two variants of the Taichi and the Fatal1ty Pro i7 as well: one with Fairchild mosfets and the other with Sinopowers.

I suspect it has more to do with the people not using the latest BIOses with LLC fixes. Taichi BIOs was fixed earlier than the K6 & Extreme4
post #4 of 19
Thread Starter 
Quote:
Originally Posted by AlphaC View Post

Thanks for the information.

There's two variants of the Taichi and the Fatal1ty Pro i7 as well: one with Fairchild mosfets and the other with Sinopowers.

I suspect it has more to do with the people not using the latest BIOses with LLC fixes. Taichi BIOs was fixed earlier than the K6 & Extreme4

I have read unconfirmed reports that the LLC issue persists beyond the BIOS update.

Also, would the Sinopower variant really cause an overclock around 5.0ghz to be unstable in similar settings on the Fairchild model?
post #5 of 19
Some people also don't notice Asrock's LLC scale is the reverse of Asus'
post #6 of 19
Thread Starter 
Quote:
Originally Posted by AlphaC View Post

Some people also don't notice Asrock's LLC scale is the reverse of Asus'

I'm surprised considering it shows you a graph on the right side of the LLC field in the BIOS indicating that Level 1 is "flat."

My K6 droops hard in AVX loads set at level 2. I won't go to level 1 as I feel like it is just too much voltage.
post #7 of 19
Thread Starter 
I'd also like to add, I am using the 1.20 BIOS (latest) and my configuration is a static 1.35v with LLC Level 2. Stable for several hours in Prime95 and Realbench with max memory. at 4.9ghz with no AVX offset. This is not a delidded CPU. It will run at 5.0ghz at the same voltage but it is unstable. I need to go up to 1.4 to attain stability but at that point heat is a huge issue.

I am considering delidding it or sending it to Silicon Lottery for them to bin it and do it for me. I do believe the board is limiting this CPU.
post #8 of 19
Does it show a thermal throttling flag when you are unstable?
post #9 of 19
Thread Starter 
Quote:
Originally Posted by AlphaC View Post

Does it show a thermal throttling flag when you are unstable?

No thermal throttling it's in the high 80s low 90s at 1.4v level 2 LLC. The instability is found when I am running the benchmark and I see the voltage with 1.4v LLC 2 dropping to 1.2 ish volts. it seems to vary in the amount of voltage it drops. I have passed stress test at 1.4 and then the same test later on I vdroop more than before and it BSODs or just freezes.

From my past experiences, and I know they aren't quite as vast as your's, LLC usually holds voltage a bit better than what I am experiencing.
post #10 of 19
thats what i read on reddit and other sources the LLC even in LVL1 still causing vdrops to point of instability. My question is (becouse im no expert in this matter at all) does changing variants of VRM can fix this issues? Or can it be fixed tru uefi update ?

I got KIller Sli that is no matched for higher entry boards but still LLC set to LVL3 with voltage higher (LLC1 @ 1.264v / LLC3 @ 1.290v / LL4 @ 1.31v) will not let me pass any test 8600K @ 4.8 no AVX while having LLC1 1.264v is almost rock solid

theres none sign of throttling at all PC just freeze
Edited by bobekk - 11/24/17 at 6:22am
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Silicon Lottery
Overclock.net › Forums › Hardware Vendors › Silicon Lottery › Z370 Fatal1ty K6 and Z370 Extreme4 motherboard QVL.