Gigabyte Z490 Vision D (Thunderbolt 3) + i5-10400 + AMD RX 580

[CaseySJ]

No riser board. Card is plugged directly into the first PCI slot. Using the Vision D w/ 10850K cpu. Works flawlessly with the 5700 in the same port with display port monitors. All I see is black on boot with the 6900 unless I grab a spare monitor with HDMI. Unfortunately I have no other display port monitors to test with.

It’s okay to enable CSM Support and see if it helps.

If you have an HDMI monitor connected, does the 6900 output video only to the HDMI monitor, or do one of the DP monitors also turn on?

If a DP monitor turns on, you could try using an HDMI ghost plug. Simply search Amazon for “HDMI ghost plug”.

 

[taconugget]

It’s okay to enable CSM Support and see if it helps.

If you have an HDMI monitor connected, does the 6900 output video only to the HDMI monitor, or do one of the DP monitors also turn on?

If a DP monitor turns on, you could try using an HDMI ghost plug. Simply search Amazon for “HDMI ghost plug”.

Only way Ive been able to get the Display Port Monitors to work is booting from an HDMI monitor and then once booted, plugging them in.

 

[taconugget]

Stay away from F20 if you can. I downgraded to F6 as I was having issues with Comet Lake and F20.

F20 was only installed to see if having an older F5 was the culprit of my video card issues. Unfortunately F20 did not resolve the issue. I will likely move back to the recommended F5.

 

[dehjomz]

No riser board. Card is plugged directly into the first PCI slot. Using the Vision D w/ 10850K cpu. Works flawlessly with the 5700 in the same port with display port monitors. All I see is black on boot with the 6900 unless I grab a spare monitor with HDMI. Unfortunately I have no other display port monitors to test with.

Is the igpu turned on? Could the system be trying to output video via the igpu and not your 6900xt in the preboot environment? Are your displayport cables capable of DP1.4? What BIOS are you using?

My old Radeon VII from ASUS used to give me trouble sometimes with outputting video on post, sometimes on post it wouldn’t display anything or it would display a garbled image, so I’d have to reboot the system once or twice for it to stop acting up. Sometimes upon wake from s3 sleep it wouldn’t display anything so I’d have to put the system back to sleep and wake it again for an image to display. Very quirky, and I never had that problem with an nvidia card or with my 6800XT.

 

[taconugget]

Is the igpu turned on? Could the system be trying to output video via the igpu and not your 6900xt in the preboot environment? Are your displayport cables capable of DP1.4? What BIOS are you using?

My old Radeon VII from ASUS used to give me trouble sometimes with outputting video on post, sometimes on post it wouldn’t display anything or it would display a garbled image, so I’d have to reboot the system once or twice for it to stop acting up. Sometimes upon wake from s3 sleep it wouldn’t display anything so I’d have to put the system back to sleep and wake it again for an image to display. Very quirky, and I never had that problem with an nvidia card or with my 6800XT.

Thanks for the responce!

I used both F20 and F5 neither work. I see black all through the boot process. No BIOS no nothing. I did try disabling the internal igpu yesterday with no luck, but maybe I should try again. I cant remember which BIOS I tried that on. The monitors are 2009 24" Apple LED Cinema Displays. I cant find any documentation on them saying what version Display port standard they are. I did read that the mini-displayport was sent to 1.2 standard though on another post I read last night. Cables are permanently attached to the monitor and you can’t change them. One would think the Card should be backwards compatible with previous standards.

Id also like to flip the switch on CSM and see what happens. Hope to be able to do that here shortly...

Seems like its either the card hating the old monitors, or I need to find the magic switch in the BIOS settings...

 

[dehjomz]

Thanks for the responce!

I used both F20 and F5 neither work. I see black all through the boot process. No BIOS no nothing. I did try disabling the internal igpu yesterday with no luck, but maybe I should try again. I cant remember which BIOS I tried that on. The monitors are 2009 24" Apple LED Cinema Displays. I cant find any documentation on them saying what version Display port standard they are. I did read that the mini-displayport was sent to 1.2 standard though on another post I read last night. Cables are permanently attached to the monitor and you can’t change them. One would think the Card should be backwards compatible with previous standards.

Id also like to flip the switch on CSM and see what happens. Hope to be able to do that here shortly...

Seems like its either the card hating the old monitors, or I need to find the magic switch in the BIOS settings...

DisplayPort version 1.4 was published March 1, 2016. If possible, try testing with another DisplayPort monitor or cable to see if it’s the card or the monitor thats having an issue. my bet would be on the monitor, given that it seems that you can display DisplayPort video output normally from the 6900xt after the OS has booted. Frustrating I know… dampens the excitement of a new graphics card.

 

[taconugget]

DisplayPort version 1.4 was published March 1, 2016. If possible, try testing with another DisplayPort monitor or cable to see if it’s the card or the monitor thats having an issue. my bet would be on the monitor, given that it seems that you can display DisplayPort video output normally from the 6900xt after the OS has booted. Frustrating I know… dampens the excitement of a new graphics card.

Yeah, it’s a bummer but maybe an excuse for some new monitors. I’ll swing by and pick up a monitor for testing this weekend. Just a strange thing to be happening. Always has to be harder then it needs to be right…

 

[dehjomz]

Yeah, it’s a bummer but maybe an excuse for some new monitors. I’ll swing by and pick up a monitor for testing this weekend. Just a strange thing to be happening. Always has to be harder then it needs to be right…

Such is the world of PCs unfortunately. I’ve had systems up and running smooth sailing for weeks, then at the most inopportune time, a component crashed or the motherboard stopped posting or the video card started acting up. The most recent one was a memory DIMM died and was causing random crashes. Took me a while to debug that. It’s always something. But Corsair took good care of me, was back up and running within 5 days. Most of that time was just the slow USPS service.

 

[taconugget]

It’s okay to enable CSM Support and see if it helps.

If you have an HDMI monitor connected, does the 6900 output video only to the HDMI monitor, or do one of the DP monitors also turn on?

If a DP monitor turns on, you could try using an HDMI ghost plug. Simply search Amazon for “HDMI ghost plug”.

Set the BIOS to have internal GPU off and CSM on. Set the PCI to port 1 manually. Still not luck... Ill go buy some displayport monitors now and see if we have a change...

 

[taconugget]

@dehjomz @CaseySJ New monitors solved the issue. Thanks for the troubleshooting help and being there to run ideas past! I'm now rocking two 28" instead of the old 24"s. They are 4k vs. HD, and they emit no heat... Honestly its a win-win... Other then on the pocketbook...

Now I need to figure out where and how to mount this 5700 XT.. Doesn't look like its gonna fit inside the box well. Prob have to go eGPU... Anyone want to caution me about anything with eGPU?

This is the box Apple pushes.
https://www.amazon.com/dp/B08Q7KF1FR/?tag=tonymacx86com-20

If anyone else has experience I'm all ears.

Thanks everyone!