X370 Taichi BIOS issues

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   Hi,

Ever since i've upgraded my 1600x to and 3800X - i can't enter the BIOS.

I upgraded the BIOS to the one supporting the 3800x, swapped them and everything seemed to be fine. But ever since i'm not able to enter the BIOS. Now today i've flashed the latest official BIOS 5.8 - but the issue still persist.

I've tried clearing CMOS(succesfully) - my system i stock now and the ram is not in XMP profile so i know that it worked. Still no joy entering the BIOS. It just freezez and displays A9 code on the motherboard. Still boots and acts fine in Windows.

My system consists of:

X370 Taichi P5.8
AMD 3800X
2*8GB G.Skill FlareX 3200Mhz
Radeon Vega 56
960EVO M.2

Any ideas as to what to do? I'm at a loss.

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Trekster2000 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 02 Sep 2019 Status: Offline Points: 4	Post Options Post Reply Quote Trekster2000 Report Post Thanks(0) Quote Reply Topic: X370 Taichi BIOS issues Posted: 02 Sep 2019 at 3:29pm
	Hi, Ever since i've upgraded my 1600x to and 3800X - i can't enter the BIOS. I upgraded the BIOS to the one supporting the 3800x, swapped them and everything seemed to be fine. But ever since i'm not able to enter the BIOS. Now today i've flashed the latest official BIOS 5.8 - but the issue still persist. I've tried clearing CMOS(succesfully) - my system i stock now and the ram is not in XMP profile so i know that it worked. Still no joy entering the BIOS. It just freezez and displays A9 code on the motherboard. Still boots and acts fine in Windows. My system consists of: X370 Taichi P5.8 AMD 3800X 2*8GB G.Skill FlareX 3200Mhz Radeon Vega 56 960EVO M.2 Any ideas as to what to do? I'm at a loss.

Ray62 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 01 Jul 2018 Location: Germany, Berlin Status: Offline Points: 706	Post Options Post Reply Quote Ray62 Report Post Thanks(0) Quote Reply Posted: 02 Sep 2019 at 4:34pm
	A9: Start of Setup So something is blocking further bios steps - Try with one RAM stick in A2 - Change the used USB port on the I/O panel for keyboard, mouse And maybe (depends on what is used and/or available): - If you use a PS/2 keyboard, try it with an USB keyboard or PS/2-USB adaptor - If you use an USB keyboard, try it with a PS/2 keyboard or USB-PS/2- adaptor If nothing helps, check your PSU (and which PSU do you use?)
	Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE \| AMD Ryzen 9 3900X \| Scythe Mugen5 \| 2x16GB F4-3200C14D-32GTZ@3466 \| ASUS GeForce GTX 1080 Ti FE

Trekster2000 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 02 Sep 2019 Status: Offline Points: 4	Post Options Post Reply Quote Trekster2000 Report Post Thanks(0) Quote Reply Posted: 02 Sep 2019 at 5:35pm
	So found the culprit. I have a Samsung XP941 connected to the secondary M2 slot(the slow one). Pulled that out and could enter BIOS. Still doesn't explain why the regression going from an earlier BIOS versions to this one.

Ray62 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 01 Jul 2018 Location: Germany, Berlin Status: Offline Points: 706	Post Options Post Reply Quote Ray62 Report Post Thanks(0) Quote Reply Posted: 02 Sep 2019 at 9:14pm
	Strange, what's happining with the new 3000 Ryzens. Samsung XP941 should be optimal for the second M2 slot...
	Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE \| AMD Ryzen 9 3900X \| Scythe Mugen5 \| 2x16GB F4-3200C14D-32GTZ@3466 \| ASUS GeForce GTX 1080 Ti FE