Overclock.net - An Overclocking Community - Reply to Topic

Thread: UPDATED: ASUS Z370 and Z390 Motherboard Series - Official Support Thread. North America Reply to Thread
Title:
Message:

Register Now

In order to be able to post messages on the Overclock.net - An Overclocking Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in


  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
06-02-2020 03:51 PM
Robostyle What is the best, in terms of OC, bios ver to choose for M10H(wifi)?
05-26-2020 09:47 AM
kevindd992002
Quote: Originally Posted by Jpmboy View Post
it's not likely that 1.2-ish VSA is gonna damage an 8700K. That's a pretty robust cpu. It just that XMP programming is necessarily set to accomodate the range of CPUs the ram is on the market with... and the entire range of silicon wins and losses. Think of it like "Auto Volt". Two 4 letter words banned by overclockers.



Yeah, Skylake and Cascade lake are that different. INtel spec limits are pretty complex in that the ceiling for one is set with all other rails/frequencies/temperatures at default limits - when you start pushing multiple rails higher is when the specs are very "optimistic". If you look at the fine print in their spec sheets, it always says "limit when all other parameters are within the acceptable operating range" or something like that. you can trust Elmor, but remember he gets his gear free.
Right, though I'm more worried about the VCCIO reaching around 1.34V rather than VSA reaching around 1.2V. I guess I won't have proof of degradation until I proceed with the overclock of the whole system (which I'll be doing very soon).

Sent from my SM-G955F using Tapatalk
05-26-2020 06:37 AM
Jpmboy
Quote: Originally Posted by kevindd992002 View Post
Right, but is the possibility of IMC degradation high with these voltages?

EDIT: I'm trying to think hard if my personal system was the one I had XMP set on. I might've been confused with the fact that the most recent system I built (for my sister) was the one I had XMP set on (3700X with G. Skill RAM modules also) as linked here: https://www.overclock.net/forum/11-a...t28180124.html

I have 9/5/2019 screenshots of the UEFI pages of my personal ASUS Maximus X Code system and I didn't have XMP set there but I'm not a 100% sure that those were the latest settings I had before one of the RAM sticks failed. I have a gut feeling that I read about the VCCIO/VCSA voltage being high when set to Auto with these boards which prevented me from blindly enabling XMP in the first place. Is there a way, perhaps in Windows 10, for me to verify what the "historical" values of VCCIO and VCSA were?
it's not likely that 1.2-ish VSA is gonna damage an 8700K. That's a pretty robust cpu. It just that XMP programming is necessarily set to accomodate the range of CPUs the ram is on the market with... and the entire range of silicon wins and losses. Think of it like "Auto Volt". Two 4 letter words banned by overclockers.
Quote: Originally Posted by Falkentyne View Post
In Elmor's video with his 4300 mhz sticks, hes using 1.5v VCCSA and 1.40v VCCIO and doesn't care one bit. And I trust Elmor.
But this is 10th gen.
The intel spec sheet says SA can go up to 1.52v, and there's no loadline calibration to mess things up like there is with 1.52v vcore (which is only max safe with 1.1 mOhms LLC (10th gen) or 1.6 mOhms (9th gen) or 2.1 mOhms (6 core 9th gen or 8th gen).
https://www.youtube.com/watch?v=osMr...ature=emb_logo
Yeah, Skylake and Cascade lake are that different. INtel spec limits are pretty complex in that the ceiling for one is set with all other rails/frequencies/temperatures at default limits - when you start pushing multiple rails higher is when the specs are very "optimistic". If you look at the fine print in their spec sheets, it always says "limit when all other parameters are within the acceptable operating range" or something like that. you can trust Elmor, but remember he gets his gear free.
05-26-2020 05:18 AM
Falkentyne
Quote: Originally Posted by Jpmboy View Post
Yeah, I'm sure that XMP 3200 does not need anywhere near 1.336V VSA. Once you get the other stick back, if you do use XMP (ever) again I'd lower VSA by at least 100mV. Not that it is the cause of the stick failing, but why overvolt any setting?
In Elmor's video with his 4300 mhz sticks, hes using 1.5v VCCSA and 1.40v VCCIO and doesn't care one bit. And I trust Elmor.

But this is 10th gen.

The intel spec sheet says SA can go up to 1.52v, and there's no loadline calibration to mess things up like there is with 1.52v vcore (which is only max safe with 1.1 mOhms LLC (10th gen) or 1.6 mOhms (9th gen) or 2.1 mOhms (6 core 9th gen or 8th gen).

05-26-2020 04:52 AM
kevindd992002
Quote: Originally Posted by Jpmboy View Post
Yeah, I'm sure that XMP 3200 does not need anywhere near 1.336V VSA. Once you get the other stick back, if you do use XMP (ever) again I'd lower VSA by at least 100mV. Not that it is the cause of the stick failing, but why overvolt any setting?
Right, but is the possibility of IMC degradation high with these voltages?

EDIT: I'm trying to think hard if my personal system was the one I had XMP set on. I might've been confused with the fact that the most recent system I built (for my sister) was the one I had XMP set on (3700X with G. Skill RAM modules also) as linked here: https://www.overclock.net/forum/11-a...t28180124.html

I have 9/5/2019 screenshots of the UEFI pages of my personal ASUS Maximus X Code system and I didn't have XMP set there but I'm not a 100% sure that those were the latest settings I had before one of the RAM sticks failed. I have a gut feeling that I read about the VCCIO/VCSA voltage being high when set to Auto with these boards which prevented me from blindly enabling XMP in the first place. Is there a way, perhaps in Windows 10, for me to verify what the "historical" values of VCCIO and VCSA were?
05-26-2020 04:40 AM
Jpmboy
Quote: Originally Posted by kevindd992002 View Post
Ok, with the working stick set to XMP I got the voltages in the attached file.

VCCIO = 1.336V
VSA = 1.144V

Are those insanely high voltages on the IMC? Would those Auto values different if both sticks were plugged in and working?

I'm looking for a spare DDR4 RAM kit that I can test with to isolate if dual channel is an issue. So if, say, another 2133MHz kit works in dual channel in my system, then the IMC is probably fine?
Yeah, I'm sure that XMP 3200 does not need anywhere near 1.336V VSA. Once you get the other stick back, if you do use XMP (ever) again I'd lower VSA by at least 100mV. Not that it is the cause of the stick failing, but why overvolt any setting?
05-25-2020 11:36 PM
kevindd992002
Quote: Originally Posted by DStealth View Post
Yes you can make such test. If you have one stick good and one bad probably the IMC is fine. If you can work with one stick but not in dual channel could be the IMC issue.
Ok, with the working stick set to XMP I got the voltages in the attached file.

VCCIO = 1.336V
VSA = 1.144V

Are those insanely high voltages on the IMC? Would those Auto values different if both sticks were plugged in and working?

I'm looking for a spare DDR4 RAM kit that I can test with to isolate if dual channel is an issue. So if, say, another 2133MHz kit works in dual channel in my system, then the IMC is probably fine?
05-25-2020 10:08 PM
DStealth Yes you can make such test. If you have one stick good and one bad probably the IMC is fine. If you can work with one stick but not in dual channel could be the IMC issue.
05-25-2020 09:52 PM
kevindd992002
Quote: Originally Posted by DStealth View Post
VCCIO and SA are voltages in the CPU if they degraded due high voltages from "auto" XMP ...RMAing the memory sticks won't help you...
I can't belive how many users are useing unsafe 24/7 voltages from XMP i.e for 3200/3600 modules XMP sets 1.4+ for auto...where my CPU can run 4300cl14 with 1.225 and 1.25v manual respectively
I didn't expect this answer. This is really bad if this is the reason. I hadn't had time to optimize my BIOS overclock settings for a couple of years since I built the system and didn't really notice what were the VCCIO and SA voltages while I'm at XMP. I had thought that XMP only really sets the DRAM voltages and frequencies.

Is this true for 3200 XMP sets though? Do they all set the voltages to unsafe values? How would I know now that I have one stick that has gone bad? I guess I can boot the motherboard with just the working stick, set it to XMP, and see what the VCCIO and VSA voltages are? Is that an accurate test?

Also, what is the explanation behind one stick going bad if it's a degraded CPU? If it was a degraded CPU, won't plugging in either stick make the system NOT POST?
05-25-2020 08:48 PM
DStealth VCCIO and SA are voltages in the CPU if they degraded due high voltages from "auto" XMP ...RMAing the memory sticks won't help you...
I can't belive how many users are useing unsafe 24/7 voltages from XMP i.e for 3200/3600 modules XMP sets 1.4+ for auto...where my CPU can run 4300cl14 with 1.225 and 1.25v manual respectively
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off