x370 Taichi 4.6 Bios boots but black scree no bios

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   I just upgraded my asrock x370 Taichi motherboard to 4.6 bios.Although i can get into windows i have the weird issue of no video output until windows is loaded so i cant get into the bios to modify stuff.
Im wondering if anyone has any ideas, ive tried plugging my screens into a bunch of ports to no avail aswell as clearing the cmos.

Any help would be appreciated

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danivsainz Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Mar 2018 Status: Offline Points: 8	Post Options Post Reply Quote danivsainz Report Post Thanks(0) Quote Reply Topic: x370 Taichi 4.6 Bios boots but black scree no bios Posted: 29 Mar 2018 at 1:25pm
	I just upgraded my asrock x370 Taichi motherboard to 4.6 bios.Although i can get into windows i have the weird issue of no video output until windows is loaded so i cant get into the bios to modify stuff. Im wondering if anyone has any ideas, ive tried plugging my screens into a bunch of ports to no avail aswell as clearing the cmos. Any help would be appreciated

ssateneth Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 19 Oct 2017 Status: Offline Points: 114	Post Options Post Reply Quote ssateneth Report Post Thanks(0) Quote Reply Posted: 29 Mar 2018 at 2:43pm
	What model is your video card? Sounds like an old video card without a GOP driver in its BIOS. Try a newer video card. There's also a setting to enable CSM and force legacy video output among other legacy settings, but obviously you need to get in the bios for that Edited by ssateneth - 29 Mar 2018 at 2:45pm
	MB: X399 Taichi, UEFI L3.32 VGA: EVGA 1080 Ti FTW3 PSU: Seasonic PRIME 1300 W PLATINUM CPU: AMD Ryzen Threadripper 2950X MEM: 4x16GB, 3600MHz G.Skill Trident Z F4-3600C17Q-64GTZKW

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 22793	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 29 Mar 2018 at 4:57pm
	What ssateneth said, you will need to use a GoP capable GPU to go into the UEFI and enable CSM legacy support for the GPU. Once you have done that you can go back to your original GPU and all should be well.


danivsainz Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Mar 2018 Status: Offline Points: 8	Post Options Post Reply Quote danivsainz Report Post Thanks(0) Quote Reply Posted: 29 Mar 2018 at 5:02pm
	Im using a 1080ti.Before the bios upgrade it always worked fine so im not sure whats going on

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 22793	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 29 Mar 2018 at 5:12pm
	That is very odd, what make and model is the GPU? If you soft restart (from OS) can you get the UEFI to pull up then? I have had the UEFI not display on my GTX 960 but all I needed to do was switch display outputs to get it back. Have you tried all your display output options? It would be very helpful if we could get you into the UEFI somehow so we can get a look at your CSM settings. The 1080ti should have the latest GoP implementation so something else is going on here.


danivsainz Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Mar 2018 Status: Offline Points: 8	Post Options Post Reply Quote danivsainz Report Post Thanks(0) Quote Reply Posted: 29 Mar 2018 at 5:21pm
	I have a two 1080ti's a Asus Rog strix and a Gigabyte something. I just tried having hdmi's / dvis connected to both just incase and nothing.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 22793	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 29 Mar 2018 at 5:30pm
	And restarting from within the OS then trying to enter the UEFI? If you could provide your full system specs too, that would be helpful.


danivsainz Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Mar 2018 Status: Offline Points: 8	Post Options Post Reply Quote danivsainz Report Post Thanks(0) Quote Reply Posted: 29 Mar 2018 at 5:57pm
	I did try what you recommended as well as using the Asrock boot to uefi tool but none worked. The summary i was getting from HWinfo was pretty big and the forums didnt allow me to post it. I've uploaded to google drive for viewing. https://drive.google.com/file/d/1vzk79CMks9IelOp-oEw6uhr9kW59V8cN/view?usp=sharing

danivsainz Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Mar 2018 Status: Offline Points: 8	Post Options Post Reply Quote danivsainz Report Post Thanks(0) Quote Reply Posted: 29 Mar 2018 at 6:03pm
	Also, i was able to enter the bios just with a black screen Also i've upgraded the bios throughout the year and never had this issue before only on this version at 4.6 Even the 2.x -> 3.3 bios upgrade before going to 4.6 was fine Edited by danivsainz - 29 Mar 2018 at 6:06pm

Erasmus_Tycho Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 20 Jan 2018 Location: Phoenix, AZ Status: Offline Points: 85	Post Options Post Reply Quote Erasmus_Tycho Report Post Thanks(0) Quote Reply Posted: 30 Mar 2018 at 12:54am
	Did you upgrade to 4.4 before upgrading to 4.6?
	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)