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Z370 Extreme4 XMP bug
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wond1r View Drop Down
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Joined: 12 Jan 2018
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Points: 14 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wond1r Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jan 2018 at 9:12pm
Originally posted by Flode Flode wrote:

Hello together,

i updated yesterday to 1.4 and i can confirm that the problem with to high voltage for vccio and vccsa when applying xmp profile on the extreme4 has not been fixed by Asrock.

Which is kind of sad cause this thread here got a lot of views and people responding here reportig the same problem.

Asrock please start careing about your customers!

Did anyone of you got a reaction from Asrock officials?

Thanks and have a nice day,

flode
Damn that's not very good, Ii was waiting to try it out myself tomorrow hoping 1.40 fixes it but i guess ill just try out your manual method of adjusting vccio to 1.1 and vccsa to 1.15. Hope they release another BIOS that will have the issue fixed for the people who can't find this thread and are going through the headache figuring it out.
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Flode View Drop Down
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Points: 110 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Flode Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jan 2018 at 7:11pm
Hello together,

i updated yesterday to 1.4 and i can confirm that the problem with to high voltage for vccio and vccsa when applying xmp profile on the extreme4 has not been fixed by Asrock.

Which is kind of sad cause this thread here got a lot of views and people responding here reportig the same problem.

Asrock please start careing about your customers!

Did anyone of you got a reaction from Asrock officials?

Thanks and have a nice day,

flode
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urkal View Drop Down
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Points: 19 		Post Options Post Options   Thanks (0) Thanks(0)   Quote urkal Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jan 2018 at 7:51pm
I would get freezes on my OC while it's rock stable with OCCT software.

I manually changed all the voltages to the settings below and it stopped all freezes. Copy all my settings except DRAM voltage and CPU core voltage.

Might want to lower VCCIO and VCCSA depending on your overclock. I'm running at 5.1 GHZ and 4200mhz on ram.

You can reproduce the freezing with OCCT software pretty fast. If it doesn't freeze for 10 mins you're good.








Edited by urkal - 15 Jan 2018 at 8:16pm
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Angel View Drop Down
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I already updated it and it DOESNT fix that. 

Shame on you AsRock for still not fixing this. 
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wond1r View Drop Down
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Points: 14 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wond1r Quote  Post ReplyReply Direct Link To This Post Posted: 13 Jan 2018 at 9:32am
I'm unable to test as well but seeing as the BIOS notes state

1. Update CPU Microcode to revision 80
2. Improve memory compatibility 

I can only imagine the memory compatibility has it fixed. Interested to see if anyone can test and post results
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Flode View Drop Down
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Points: 110 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Flode Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 2018 at 7:08pm
Hey,

new BIOS 1.4 out today!

http://www.asrock.com/MB/Intel/Z370%20Extreme4/index.asp#BIOS

I'm not a home for the weekend, i'd love to test this and if a fix for the XMP Voltage bug has been included but unfortunately i cant.

Can anyone who has expierenced this error as well test the new bios please with stock settings?

I try to test on Monday.

Best Regards

flode
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slimSpencer View Drop Down
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hello,

i just registered here to tell you that i had the same problem with my Extreme4/8700k and also fixed it by lowering voltages. Got Crucial B. Elite 2x8GB@3000 and set even lower voltages. I also sent a message to Asrock directly by using the previously mentionend contact form:

"
Freeze under load due to wrong voltages set by EFI

System freezes at heavy load when using Memory XMP-profile and leaving voltages at 'auto'. The voltages seem to be too high at 'auto'-settings!
I fixed the problem by manually entering the following, lower voltages:
- VCCST    1.00
- VCCPLL 1.00
- VCCIO 0.95
- VCCSA 1.05

system is stable with these settings @XMP-3000.

Other user have the same problem and also fixed it by lowering voltages, see: http://forum.asrock.com/forum_posts.asp?TID=6860&title=z370-extreme4-xmp-bug

please pass this info to your HQ.
"

best regards
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tshearman View Drop Down
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Points: 1 		Post Options Post Options   Thanks (0) Thanks(0)   Quote tshearman Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2018 at 11:01pm
I was running into the same problem on a new build.  This fixed it

specs
i7-8700k
asrock z370 extreme 4
G.Skill trident Z RGB 32 G model f4-3200c16q-32gtzr
corsair h100i v2
zotac 1080ti

Thanks for the help guys, hopefully this get patched in new bios updates.  I was on the verge of sending back the ram and buying non OC'ed stick.
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DeeJay View Drop Down
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Hello everyone,

Just registered to post my thanks to Flode for the solution.

Mine is a newly build machine with 8700K, Z370 Extreme 4, and G.SKILL F4-3600C16D-16GTZR (I didn't want the RGB, but those were much cheaper than the GTZ version...) 

After getting all the components and putting them together, the first thing I did was boot to BIOS and update to the latest available version. All seemed fine, and Windows installed on the new nVME drive without any issues.

Then the problems started! I got exactly the same problem as in the first few posts in this topic - the machine would boot to Windows, and will run some tests/benches, but will freeze when left to idle or immediately after stopping say Prime95 (9 out of 10 times). 
That got me pulling out quite some hair, and I even got a replacement memory kit from the supplier, but it experienced exactly the same issue, so apparently all this was not due to a defective ram kit. Then after a few days of searching I came to this topic and that solved my problem!!!

My VCCIO and VCCSA voltages were set to 1.2 and 1.25 respectively after activating the memory XMP profile. As my XMP profile is at a bit higher speeds than the one in the original post -  I lowered them both with just 0.1 to 1.1 and 1.15, and the machine is now rock stable! No matter what benches I throw at it or how long I leave it to idle!

So the problem appears to happen with various ram modules certified for various XMP speeds, so maybe the new memory controllers just don't need that much voltage as older ones!!!

n.b. I have not clocked the CPU itself (other than the memory controller) - as I was trying to see if everything will just work together at the 'default' speeds it was sold to support.

Cheers!



Edited by DeeJay - 04 Jan 2018 at 11:39pm
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wims80 View Drop Down
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I went quite a bit lower than that with my Corsair Vengeance 3200cl16 (Hynix a-die). I went for 0.95v VCCIO and 1.05v VCCSA and it seems to be running just fine at XMP speed
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