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X470 Taichi Ultimate - Hanging at boot

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gizmic View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gizmic Quote  Post ReplyReply Direct Link To This Post Topic: X470 Taichi Ultimate - Hanging at boot
    Posted: 10 Sep 2018 at 10:40am
i'm on 1.52 got no problems on it in fact its the only bios that lets me boot at 3466 althought not 100% stable 

only difference i can see is i dont use xmp 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote datonyb Quote  Post ReplyReply Direct Link To This Post Posted: 09 Sep 2018 at 12:03am
i usually run geardown off and bank gp off, with bank group alt on

brian chew did some testing on early x370 boards with betas from asrock and did discover using bios instant flash seemed to leave traces of later bios (he found things that shouldnt be in bios in earlier versions after flashing back) which he cured by flashing from a dos booted usb and the dos flash

i can only presume by what your saying that some code is left when you flash-backwards upsetting what was a working bios

to be fair with later boards and bios, i think theres more info and help on the enthusiast forums with the guys who are tinkering than this forum fo less able users who have a problem with a product, if you get my meaning

heres the x470 taichi thread ,only 2 pages though................

[url=https://valid.x86.fr/jpg250][/url]

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sarc1942 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2018 at 11:50pm
Thanks for the reply.

That sounds like it might be the problem.

Just to throw a spanner into the mix, as of an hour ago I've actually got it to boot up using XMP and overdrive by turning Geardown off and forcing 1T on the same page in BIOS.

Weird thing is, I never had to touch those settings before, but if it's not fully clearing BIOS from flashing through BIOS and not DOS, then that might make sense you think?

Cheers
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Post Options Post Options   Thanks (1) Thanks(1)   Quote datonyb Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2018 at 9:56pm
im suspecting you still have traces of the later bios remaining on earlier bios flashes
(chew who was testing am4 stuff for asrock found this out)
his cure when flashing backwards was to do a full dos bios flash, this erased fully all files and then wrote the new files in the rom

alas ive just checked and the x470 taichi dosnt have any DOS flasher version listed Confused unlike we have for x370 boards
[url=https://valid.x86.fr/jpg250][/url]

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sarc1942 Quote  Post ReplyReply Direct Link To This Post Posted: 08 Sep 2018 at 9:01pm
Hi all,

Hopefully someone can help me out with this, spent 7 hours on it yesterday, and still scratching my head.


My set up:

X470 Taichi Ultimate
Ryzen 2700x
G.SKILL F4-3200C14D-16GFX 16 GB (8 GB x 2) Flare X


A few days ago I decided to update my BIOS to the 1.52 BETA, flashed in BIOS like normal, reset to defaults on the next boot up, saved and quit. Booted into Windows, shut down and went into BIOS to enable XMP, enable precision overdrive, and sort out fan curves.

This is where the problems started, every boot up resulted in my PC hanging on the ASRock black screen after POST with the white circle at the bottom, except the white circle just freezes up after a few seconds resulting in me having to hard reset.

After turning off XMP and precision boost, I was able to get back into Windows, but obviously at stock speeds, so thinking it was an issue with the beta BIOS, I flashed back to the version I was on before (1.30), reset BIOS again, put XMP on after another reboot, along with precision overdrive.

Hangs at the exact same spot again.

I've now tried all the BIOS versions available from ASRock, all of them result in the same issue as soon as I enable XMP and/or precision overdrive.

Few things I've tried:

Re-installed Windows
Removed all USB devices
Re-seated both RAM sticks, and tried different slots
Boosted ram voltage from 1.35 to 1.4
Boosted SoC voltage up to 1.2 from Auto

Annoyingly, my system was working great before the BIOS update to 1.52 on all stock voltages, BCLK at 101, ram at 3400 with tight timings and precision overdrive on. What have I done?!


Any help would be great, thanks for reading.

Cheers
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