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X370 Taichi, Goes Blank; Code '00'
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Joined: 04 May 2015
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Points: 4996 		Post Options Post Options   Thanks (0) Thanks(0)   Quote parsec Quote  Post ReplyReply Direct Link To This Post Posted: 22 May 2017 at 9:02pm
Originally posted by Ivan_83 Ivan_83 wrote:

1. After power on PC start OK.
Then it works OK 2-6 days.
Then screen goes black and Dr.Debug show '00'.
If I press reset button or power off-on PSU - PC start OK and I continue work next 2-6 days.


2. '00' code does not happen after power on or reset button, so system start/work OK and I can update BIOS, boot to OS...etc...
I have no alternative CPU and MOBO for AM4. (for next few weeks)
All (at most) other hardware have alternative that I try.


3. Samsung memory come after Gigabyte mobo RMA.
I think CPU is OK, because:
- CPU start and work OK up to 2-6 days (even if I run prime95 (mprime) few hours)
- there is other peoples with x370 taichi with same problem
- Gigabyte only overheat VRM and stop work until temperature goes normal, this should not damage CPU, IMHO.


======
I build test machine with 1700X, Corsair mem and gigabyte mobo.
Gigabyte mobo overheat in test time.
I RMA gigabyte mobo and get taichi mobo.
I test taichi for overheat - test passed, no other issues found (but I do not test long uptime) and then I move 1700x, taichi and Corsair mem to my work system (replace 775 mobo+CPU+ddr3 that work OK while 5+ years).
All was OK next few days then screen goes black and I see '00' error code.
I press reset and system rebooted, I continue work...
Samsung memory come, I remove Corsair and try work only with samsung - not help with '00'.
I try replace PSU, video card, tune bios - not help.
Intel SSD come and replace SP S60 SSD.
I continue playing with bios settings...without success.
So I continue press reset every 2-6 days to continue.


Thank you, now I understand what is happening much better.

The only thing I'm not sure about is when the screen goes black and you get "00" on the Dr Debug display. Does that happen when the PC is running after a while? Or does it happen when you first power on the PC?

This is a very strange problem. Since you used a different PSU, memory, SSD, and video card, they should not be the problem.

If the only thing that would fix it (temporarily) would be to power off - on the PSU, then I would say it was something wrong with the mother board. But if pressing the Reset button also lets the PC work fine afterwards, that does not make sense, given the "00" code.

But I can't think of any other reason why the PC should act this way. I have a different ASRock Ryzen board and CPU, and I have never had this problem.

You can try replacing the board, that is all that is left to do besides a different CPU.
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Screen goes black and I get "00" on the Dr Debug display, that happen when the PC is running after a while.
System can work up to 2-6 day before that happen.
I unable to reproduce this by any actions in OS/software.

As I remember, '00' happen most times on video playback.
Last time I was working with xfreerdp with remote computer. No sound, no music, no video playback.

May this not connected, but 1-2 days before boot loop code '00', video playback with tearing.
Last time was no tearing on video playback, may be because I set Vsoc = 1.0V and SOC load line calibration = 3.

On my first link another taichi user get '00' on windows setup, music playback and playing game.

It may be quit difficult to RMA: 14 days are left and local reseller may take mobo for tests and because '00' code difficult to reproduce it can deny RMA or I will wait for long time for approve.
 

========
I suggest that boot loop instead reboot happen because some internal CPU registers or devices (inside CPU) contain incorrect values.
(May be some one forget set msr registers to protect some internal/system registers/mem regions during bios init, then OS try to use it - some CPU critical data may be damaged, then system try start but bios initial code does not init this part at all or fail to init.)

May be something wrong with watchdog inside CPU.
Is it possible that BIOS programmers forget init watchdog on BIOS start, it initialized by some random crap and after 2-6 day it fire reboot?
(Me and man with linux have no driver that reinit watchdog. User from first link and topic starter may be not setup all drivers for all devices and windows dont re init watch dog to. One of my theory.)

I try load watch dog driver but get:
amdsbwd0: <AMD FCH Rev 41h+ Watchdog Timer> at iomem 0xfed80b00-0xfed80b03,0xfed80b04-0xfed80b07 on isa0
amdsbwd0: watchdog hardware is disabled
device_attach: amdsbwd0 attach returned 6

I cant patch driver because I have no BIOS and Kernel Developer's Guide for AMD 17h, I request it and waiting: https://community.amd.com/thread/213584

Also I have no drivers for:
none0@pci0:0:0:2:    class=0x080600 card=0x14511022 chip=0x14511022 rev=0x00 hdr=0x00
    vendor     = 'Advanced Micro Devices, Inc. [AMD]'
    class      = base peripheral
    subclass   = IOMMU
    cap 0f[40] = unknown
    cap 05[64] = MSI supports 4 messages, 64 bit
    cap 08[74] = HT MSI fixed address window enabled at 0xfee00000
none1@pci0:0:20:0:    class=0x0c0500 card=0xffff1849 chip=0x790b1022 rev=0x59 hdr=0x00
    vendor     = 'Advanced Micro Devices, Inc. [AMD]'
    device     = 'FCH SMBus Controller'
    class      = serial bus
    subclass   = SMBus
none2@pci0:17:0:0:    class=0x130000 card=0x145a1022 chip=0x145a1022 rev=0x00 hdr=0x00
    vendor     = 'Advanced Micro Devices, Inc. [AMD]'
    cap 09[48] = vendor (length 8)
    cap 01[50] = powerspec 3  supports D0 D3  current D0
    cap 10[64] = PCI-Express 2 endpoint max data 256(256) RO NS
                 link x16(x16) speed 8.0(8.0) ASPM disabled(L0s/L1)
    ecap 000b[100] = Vendor 1 ID 1
    ecap 0019[270] = PCIe Sec 1 lane errors 0
none3@pci0:17:0:2:    class=0x108000 card=0x14561022 chip=0x14561022 rev=0x00 hdr=0x00
    vendor     = 'Advanced Micro Devices, Inc. [AMD]'
    class      = encrypt/decrypt
    bar   [18] = type Memory, range 32, base 0xfe600000, size 1048576, enabled
    bar   [24] = type Memory, range 32, base 0xfe700000, size 8192, enabled
    cap 09[48] = vendor (length 8)
    cap 01[50] = powerspec 3  supports D0 D3  current D0
    cap 10[64] = PCI-Express 2 endpoint max data 256(256) RO NS
                 link x16(x16) speed 8.0(8.0) ASPM disabled(L0s/L1)
    cap 05[a0] = MSI supports 2 messages, 64 bit
    cap 11[c0] = MSI-X supports 2 messages
                 Table in map 0x24[0x0], PBA in map 0x24[0x1000]
    ecap 000b[100] = Vendor 1 ID 1
none4@pci0:18:0:0:    class=0x130000 card=0x14551022 chip=0x14551022 rev=0x00 hdr=0x00
    vendor     = 'Advanced Micro Devices, Inc. [AMD]'
    cap 09[48] = vendor (length 8)
    cap 01[50] = powerspec 3  supports D0 D3  current D0
    cap 10[64] = PCI-Express 2 endpoint max data 256(256) RO NS
                 link x16(x16) speed 8.0(8.0) ASPM disabled(L0s/L1)
    ecap 000b[100] = Vendor 1 ID 1
    ecap 0019[270] = PCIe Sec 1 lane errors 0




Edited by Ivan_83 - 22 May 2017 at 10:53pm
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Atan87 View Drop Down
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Points: 25 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Atan87 Quote  Post ReplyReply Direct Link To This Post Posted: 23 May 2017 at 12:49am
My taichi show's 00 code after crash due too high overclock. U sure your system is not crashing due to instability?
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I have no overclock.
I try 1,35V for CPU, this don't help.
I try mem at 2133 and 1,35V - don't help too (for corsair and for Samsung. Samsung start and work OK at 2966 1,35V, 18-18-18-18-36).

I have no crashes on high CPU load (prime95 = mprime - 2 hours - OK), most crashes happen on intensive video output (video playback, paint remote desktop). May be this is some how connected with network activity (like packet of death on some vendor + intel network chip), but some times I transfer many data and crashes not happen. Most video that I playback from network share.
I will try to use different network card after next reboot.
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I will try to turn on logging for "machine check exception" = MCE, get and decode log.

Is it possible that BIOS does not clear mce registers on software reset/init sequence but check mce state and if there some error try to restart init sequence?


Edited by Ivan_83 - 23 May 2017 at 6:41pm
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Originally posted by Atan87 Atan87 wrote:

My taichi show's 00 code after crash due too high overclock. U sure your system is not crashing due to instability?


You got boot loop with code '00'?
If yes then +1 for my theory that BIOS does not clear MCE on soft reboot, but check it and do soft reboot...
If it true - this mean that Asrock should fix startup sequence to reset MCE and I should RMA CPU or  report to AMD and wait for microcode update.

Few peoples from another forum and different vendors mobos report about reboots on video playback, they have no overclock too.
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Originally posted by Ivan_83 Ivan_83 wrote:


ODD: ASUS DRW-1814BLT 1.14, it connected but not used (sata1, never try without it)
3,5 card reader USB 3.0 SEMA (Samsung) (never try without it)


Ivan, disconnect the above two and see what gives.

MCE's are hardware problems bad enough to stop/halt a computer.



The ODD is real old. 9+ years or so.

The card reader? Internal or external? Irrelevant, as most are temperamental at best and a PITA at worst.



Disconnect both the ODD and card reader and see if these MCEs reoccur.
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Ok, I will disconnect both on next boot loop reboot.
Card reader: SEMA SFD-321F / T81UB


PS: can you transfer information about mce and boot sequence to BIOS team in asrock for check it?
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No bootloop, just stays there doing nothing but showing code 00. I have to power down manually and power on again, which works everytime. Never have to clear cmos at this point. 
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Video with boot loop: https://www.dropbox.com/sh/uyj88uj1k9wa8cg/AAClalavS1r8bp_12PB9f-Tka/Crash%20Loop.mp4?dl=0
not mine, but I have same '00' flashes.
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