Bios not showing on display

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   TRX40 Creator with bios 1.7 and Threadripper 3960x.

Issue:
Bios screen is not showing on display.

The screen stays black during boot until Windows login screen appears.

I can hit F2 at the time when keyboard lights up. It seems the system is entering bios correctly but just not showing it on screen (led on mainboard shows A6 or Ab which indicates system is in bios).

I tried cmos reset etc.
I tried switching from DVI to HDMI
I tried different displays

Result is always the same. Asrock boot logo, and "enter bios message" are not showing up.

So, I now have a highend system which I canot adjust, because I cannot see the bios :-(

Any tip from the community available?

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madno Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Dec 2020 Status: Offline Points: 13	Post Options Post Reply Quote madno Report Post Thanks(0) Quote Reply Topic: Bios not showing on display Posted: 29 Dec 2020 at 5:14pm
	TRX40 Creator with bios 1.7 and Threadripper 3960x. Issue: Bios screen is not showing on display. The screen stays black during boot until Windows login screen appears. I can hit F2 at the time when keyboard lights up. It seems the system is entering bios correctly but just not showing it on screen (led on mainboard shows A6 or Ab which indicates system is in bios). I tried cmos reset etc. I tried switching from DVI to HDMI I tried different displays Result is always the same. Asrock boot logo, and "enter bios message" are not showing up. So, I now have a highend system which I canot adjust, because I cannot see the bios :-( Any tip from the community available?

ThreeDee Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 24 Jul 2019 Location: Billings,MT Status: Offline Points: 2396	Post Options Post Reply Quote ThreeDee Report Post Thanks(0) Quote Reply Posted: 29 Dec 2020 at 5:27pm
	What video card are you running? For testing purposes, A) Do you have another video card you can test with? or B) Have you tried your video card in a different PCIe slot?
	\|Ryzen 5 5900\|ASRock X570 Taichi-BIOS 4.60\|2x16GB HyperX Predator RGB 3200@3600 1:1 IF\|ASRock RX 6700XT\|2 x PCIe 4.0 M.2 Drives for OS & Games\|850 WTT Seasonic 80+ Titanium PSU\|Noctua NH-D15\|

madno Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Dec 2020 Status: Offline Points: 13	Post Options Post Reply Quote madno Report Post Thanks(0) Quote Reply Posted: 29 Dec 2020 at 5:59pm
	Thanks for chiming in: I have two cards: 2080 Ti in slot 1 (x16) Quadro RTX 4000 in slot 3 (x16) I tried them both. One or multiple displays attached to either of the cards. Result is always the same - black screen until Windows login.

ThreeDee Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 24 Jul 2019 Location: Billings,MT Status: Offline Points: 2396	Post Options Post Reply Quote ThreeDee Report Post Thanks(0) Quote Reply Posted: 29 Dec 2020 at 6:15pm
	.. and have you tried just one or the other card being installed by itself?
	\|Ryzen 5 5900\|ASRock X570 Taichi-BIOS 4.60\|2x16GB HyperX Predator RGB 3200@3600 1:1 IF\|ASRock RX 6700XT\|2 x PCIe 4.0 M.2 Drives for OS & Games\|850 WTT Seasonic 80+ Titanium PSU\|Noctua NH-D15\|

madno Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Dec 2020 Status: Offline Points: 13	Post Options Post Reply Quote madno Report Post Thanks(0) Quote Reply Posted: 29 Dec 2020 at 6:23pm
	Nope, because it would mean to dismantle the watercooling. It worked before the bios update, which indicates it is not an issue with the cards. But if there is no other solution I might need to try it.

ThreeDee Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 24 Jul 2019 Location: Billings,MT Status: Offline Points: 2396	Post Options Post Reply Quote ThreeDee Report Post Thanks(0) Quote Reply Posted: 29 Dec 2020 at 6:28pm
	how about just unplug the power cable to one one or the other to see if BIOS comes up .. and then flash back to 1.60 until they push out another update .. might work .. might not..?
	\|Ryzen 5 5900\|ASRock X570 Taichi-BIOS 4.60\|2x16GB HyperX Predator RGB 3200@3600 1:1 IF\|ASRock RX 6700XT\|2 x PCIe 4.0 M.2 Drives for OS & Games\|850 WTT Seasonic 80+ Titanium PSU\|Noctua NH-D15\|

madno Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Dec 2020 Status: Offline Points: 13	Post Options Post Reply Quote madno Report Post Thanks(0) Quote Reply Posted: 29 Dec 2020 at 6:38pm
	Not tried to cut power to one card. Will try that.

madno Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Dec 2020 Status: Offline Points: 13	Post Options Post Reply Quote madno Report Post Thanks(0) Quote Reply Posted: 29 Dec 2020 at 7:15pm
	Unplugging a either card did not help. But, how do I "downgrade" to an old bios? I never did that.

madno Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 29 Dec 2020 Status: Offline Points: 13	Post Options Post Reply Quote madno Report Post Thanks(0) Quote Reply Posted: 29 Dec 2020 at 7:19pm
	Or, how do I downgrade if I can't see the bios?

ThreeDee Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 24 Jul 2019 Location: Billings,MT Status: Offline Points: 2396	Post Options Post Reply Quote ThreeDee Report Post Thanks(0) Quote Reply Posted: 29 Dec 2020 at 7:20pm
	just flash like you normally do ..but if you can't see the BIOS screen to do so makes it a bit difficult,lol. Do you have enough slack in your plumbing to unplug one of the cards from the motherboard and let it hang there for however long to see if BIOS is accessible?
	\|Ryzen 5 5900\|ASRock X570 Taichi-BIOS 4.60\|2x16GB HyperX Predator RGB 3200@3600 1:1 IF\|ASRock RX 6700XT\|2 x PCIe 4.0 M.2 Drives for OS & Games\|850 WTT Seasonic 80+ Titanium PSU\|Noctua NH-D15\|