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X370 Taichi, many issues since 4.40
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Spectre73 View Drop Down
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    Posted: 11 Feb 2018 at 2:00am
All in all the update seems to be unstable.

Took a lot of time to let my RAM boot at its rated speed (see sig).

After a clear cmos I dial in working settings. The board then works stable.

If I then try to dial in some other settings and the board becomes unstable, simply going back to the verified stable settings does not work.

I need to clear cmos again and dial in the stable settings anew and as a first measure.

It is interesting, since from a clean state, after initally changing settings, the board boots twice, AFTER (and that is new) showing the splash screen.

Normally the board restarts one or two times prior to showing the splash screen.

This is only observeable after starting from clear cmos state.

So it seems, changing working settings to unworkable and back to working settings again does not stick. Only after a clear cmos can I start error free (sorry for my bad english).

There are many other problems 

- higher voltages are needed
- one can not use the same tight timings as of 3.20

The only good thing seems to be the initialization phase. It always somehow at least let me enter UEFI screen.
That was not at all possible on 3.20 where the board sometimes was only recoverable with a clear cmos.

Still disappointed, far to unstable.


Edited by Spectre73 - 11 Feb 2018 at 2:02am
ASRock x370 Taichi (L4.72), R5 1600x, 32 GB G.Skill F4-3200C14-16GTZSW, RX Vega 64
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Erasmus_Tycho View Drop Down
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Points: 85 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Erasmus_Tycho Quote  Post ReplyReply Direct Link To This Post Posted: 11 Feb 2018 at 8:31am
Well crap... guess I'm going to hold off on this BIOS then.
ASRock x370 Taichi V4.4| Ryzen 1800x | 16GB x 2 DDR4 3200 (14cas) | GTX 1080 Ti K|NGP|N | WD NVMe Black 512GB | 2 x 500GB Samsung EVO 960 | Corsair HX1000 | EK Custom Loop (360mm rad + 280mm rad)
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cehteh View Drop Down
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Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote cehteh Quote  Post ReplyReply Direct Link To This Post Posted: 11 Feb 2018 at 11:40am
after updating to 4.40 I got a system which is stuck in a reboot loop now. I cant enter UEFI settings. Disconnect from Power and reset the CMOS does not help either. Will try with less populated RAM slots next. Any other ideas, is it possible to downgrade the bios?
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Erasmus_Tycho View Drop Down
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It's possible, but you need to get into bios to do it.  Good luck, keep us posted on your progress!
ASRock x370 Taichi V4.4| Ryzen 1800x | 16GB x 2 DDR4 3200 (14cas) | GTX 1080 Ti K|NGP|N | WD NVMe Black 512GB | 2 x 500GB Samsung EVO 960 | Corsair HX1000 | EK Custom Loop (360mm rad + 280mm rad)
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Onslaught2k3 View Drop Down
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Points: 20 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Onslaught2k3 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Feb 2018 at 5:08pm
I made sure to clear CMOS each time while updating from 3.2 to 3.3 then to 4.4.  I have few issues with the 4.4 bios, XMP settings and editing timings seem to work the same, if not better as 3.2.  Memory training actually WORKS now.  I am able to get to 3466 stable, and testing with 3600 where it was NOT possible before.  I hope that future updates bring even more stability for me.  I can not stress this enough - clear CMOS each time you are to update your BIOS.  This will save headaches in the future!

HOWEVER, BIOS loading with CSM options turned off seems to be really really slow....  I believe this is a bug since 3.2 had no such issue.  It works fine with CSM options enabled though. 


Edited by Onslaught2k3 - 11 Feb 2018 at 5:10pm
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Spectre73 View Drop Down
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Points: 43 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Spectre73 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Feb 2018 at 10:36pm
I cleared bios from 3.20 to 3.30 via battery removal. After that I loaded uefi defaults and flashed to 4.40.

This should be as safe as it gets.

My problems seem to come from my 32GB of memory. Running 2 x16 sticks at 3200 does not work well with 4.40 (in 3.20 it worked after much fiddling).

Now I can at least run 2933 rock stable and I agree that the rest of the bios seems more refined.

Still I have no idea what has changed from 3.20 to 4.40 regarding memory compatibility (for the record, even RAM voltage of 1.4 volts was not stable at 3200 while at 2933 I am perfectly stable with 1.35 volts).
ASRock x370 Taichi (L4.72), R5 1600x, 32 GB G.Skill F4-3200C14-16GTZSW, RX Vega 64
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cehteh View Drop Down
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Got it working now be removing 2 Ram sticks, Was fully equipped with 4x 16GB Samsung ECC DDR4 2400 RAM (yes, that worked with 3.20). I call this a bad regression now :(
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Erasmus_Tycho View Drop Down
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Originally posted by cehteh cehteh wrote:

Got it working now be removing 2 Ram sticks, Was fully equipped with 4x 16GB Samsung ECC DDR4 2400 RAM (yes, that worked with 3.20). I call this a bad regression now :(

So you've got it running with 32gb of ram?  

I run 2 x 16GB DDR4 3200 ram... really debating trying to upgrade the BIOS if it's going to drop my ram down.  3.2 causes a ton of problems for my OC, restarting and cold boots are a coin toss for posting despite the fact that my Prime95 hours run prove zero faults.  
ASRock x370 Taichi V4.4| Ryzen 1800x | 16GB x 2 DDR4 3200 (14cas) | GTX 1080 Ti K|NGP|N | WD NVMe Black 512GB | 2 x 500GB Samsung EVO 960 | Corsair HX1000 | EK Custom Loop (360mm rad + 280mm rad)
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cehteh View Drop Down
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Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote cehteh Quote  Post ReplyReply Direct Link To This Post Posted: 13 Feb 2018 at 4:06am
I didn't even overclock, just wanted a stable platform, Ryzen 1700 because 65W TDP.

I'd known from the start that getting 64 GB *ECC* Ram was a bit tough but it worked flawless even at 2400 speed until the upgrade. So i am a bit pissed that i cant use half of the ram now, i hope a firmware upgrade soon will fix it.
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kerberos_20 View Drop Down
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Points: 3657 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kerberos_20 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Feb 2018 at 5:22am
u can switch to previous bios if 4.x doesnt work for you
main purpose for 4.x is support for raven ridge cpus

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