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X670E Taichi crashes / reboots

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aniv View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote aniv Quote  Post ReplyReply Direct Link To This Post Posted: 30 Mar 2023 at 9:04pm
I am still getting a crash/reboot with latest Windows 11 almost immediately after a cold boot with unresponsive keyboard/mouse.

Remains stable after that including reboots.

I have tried everything including turning off iGPU, turning off Global C state, disabling thunderbolt etc etc. Tried all BIOS versions from 1.07 to 1.18.

Anybody know what is causing this issue?
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Vladimir-M View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Vladimir-M Quote  Post ReplyReply Direct Link To This Post Posted: 20 Apr 2023 at 5:46am
After installation Thermalright frame for AM5 socket, 10 days no restarts.
AsRock X670E Steel Legend
Ryzen 7 7700x
Kingston FURY Beast Black [KF548C38BBK2-64] 64Gb
Gigabyte GeForce RTX 3070 Ti GAMING OC 8G
SSD Samsung M.2 990 PRO 1TB
Windows 11 Pro
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Vladimir-M View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Vladimir-M Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2023 at 3:59am
Originally posted by Vladimir-M Vladimir-M wrote:

After installation Thermalright frame for AM5 socket, 10 days no restarts.


Ah, after 11 days stable work, it restart again ((
Will try new BIOS 1.20.AS01 [Beta]
AsRock X670E Steel Legend
Ryzen 7 7700x
Kingston FURY Beast Black [KF548C38BBK2-64] 64Gb
Gigabyte GeForce RTX 3070 Ti GAMING OC 8G
SSD Samsung M.2 990 PRO 1TB
Windows 11 Pro
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lush View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote lush Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2023 at 11:45pm
Same problem here - I just built a new system with a Ryzen 7950x and x670e Taichi on the latest BIOS 1.21, and I am getting random restarts after a cold boot.

I do not get a BSOD, just a black screen and hard restart happening mostly just after logging in to Windows (after <1 min), or very rarely when system is idle. After restarting, the system is quite stable, also passing synthetic benchmarks.

What can be done to resolve the issue?
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buttabean View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote buttabean Quote  Post ReplyReply Direct Link To This Post Posted: 02 May 2023 at 12:12am
turning off "global c state" greatly improves stability. also try manually lowering the ppt edc tdc tpm.

My system is rock solid running 1.21 with ppt 180000, edc 190000, tdc 140000 -38 all cores. tpm 90c. I get close to peak performance without it ramping to 95c. in games it doesn't go past 60c and with rendering it's below 90c. Benchmarks show just as fast results.

ran y-crunch for 30 hours no prob. If that doesn't help try loosening up your memory timing.
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Vladimir-M View Drop Down
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Post Options Post Options   Thanks (2) Thanks(2)   Quote Vladimir-M Quote  Post ReplyReply Direct Link To This Post Posted: 18 May 2023 at 2:48am
Quote turning off "global c state" greatly improves stability. also try manually lowering the ppt edc tdc tpm.



Yes, it work very good!
Thank you buttabean!!

48 + hours system is stable on 1.21, no restarts.

All UEFI settings on my X760E Steel Legend:

OC Tweaker\ Perfomance Preset -> PBO Enabled

DRAM Profile Setting - XMP1



Advanced\ AMD Overclocking\ Presition Boost Overdrive:

Presition Boost Overdrive -> Advanced
PBO Limits -> Manual
PPT - 185000
TDC - 145000
EDC - 190000
Platform Thermal Throttle Limit - 90

Advanced\ AMD Overclocking\ Presition Boost Overdrive\ Curve Optimizer:
Curve Optimizer -> All Cores
All Core Curve Optimizer Sign -> negative
All Core Curve Optimizer Magnitude -> 38

Advanced\ AMD CBS\ CPU Common Options:
Global C-State -> Disable

Advanced\ AMD CBS\ NBIO Common Options\ GFX Configuration:
iGPU Configuration -> iGPU Disabled
AsRock X670E Steel Legend
Ryzen 7 7700x
Kingston FURY Beast Black [KF548C38BBK2-64] 64Gb
Gigabyte GeForce RTX 3070 Ti GAMING OC 8G
SSD Samsung M.2 990 PRO 1TB
Windows 11 Pro
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buttabean View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote buttabean Quote  Post ReplyReply Direct Link To This Post Posted: 18 May 2023 at 4:46am
Glad to hear!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TomH Quote  Post ReplyReply Direct Link To This Post Posted: 16 Jun 2023 at 5:01am
Being struggling with this idle-crash issue for days. Didn't know that I have to deal with basic stability issue with such an expensive motherboard. If BIOS needs so many special parameters for AMD CPU, Ryzen 9 7950x in my case, why can't those be automatically applied to begin with?

The basis of BIOS is a reliable platform, then allow OC or tweaking, right? I think AsRock needs to have a serious thought.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TomH Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jun 2023 at 1:04am
Why this idle-crash happened? Where it happened? Below is my theory.

- The cause is PI (Power Integrity). Killer is power surge.
- When power surges beyond hardware capability, core supply drops below CPU needs, then CPU crashes. In Windows, this is Kernel-Power event 41.
- Disabling C-State means eliminating power surge, i.e., the switching from low to high power state. High to low power transition doesn't lower core voltage to below required.
- What's hardware capability? These are system power supply, CPU power stage surrounding CPU, motherboard decoupling caps below CPU socket, and on-die cap on CPU package. Out of all these, considering CPU power surge frequency, the only thing matters is CPU on-die cap. A 5000w PSU can't help because it's too far away (large inductance) from where the surge happens.
- That's why we need to lower power surge by setting a power cap for CPU, i.e., PPT, TDC, EDC.
- It's CPU model dependent. Also, no two CPU's are the same.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TomH Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jun 2023 at 3:31pm
Something is not right with this motherboard (Taichi Carrara). It turned bad only after 3 months of light usage. After failure to have it stable, I've RMA'd it. Will update once I got another board to try. I don't believe that I can't have a stable PC. Want to use it for 10 years.
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