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After PC upgrade dvi on GPU don't work

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I did quite huge (for me) upgrade
2500k -> 5900x
Asrock Pro3 -> MSI Tomahawk X570
DDR3 -> DDR4

For now I use GTX 780 and Nec p221w (only DVI)

After assembly problem occured.
When I start up PC LCD screen is black. GTX + Nec trough DVI
I checked HDMI -> DVI adapter and it's the same.

But
When I connect GTX to my TV trough native HDMI PC is booting into bios (no system yet)

Can I do anything with this situation or X570 has no ide what DVI is?
 

Mussels

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I've seen some weird issues with ryzen and Geforce 7x0 cards, lock the PCI-E slot to 2.0 in the BIOS and see if it helps

HDMI and DVI are electrically the same so that should always work, as long as your adaptor is working
 
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I've seen some weird issues with ryzen and Geforce 7x0 cards, lock the PCI-E slot to 2.0 in the BIOS and see if it helps

HDMI and DVI are electrically the same so that should always work, as long as your adaptor is working
Will PCI-E 2.0 change impact M2 disk?
 

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Will PCI-E 2.0 change impact M2 disk?

on my boards you can change the GPU slot seperate to the M.2 slot, but theres no harm in testing it to find out if it helps.

In my case i've got a GT620 and a 750Ti, and neither will post at all unless i lock the slots to PCI-E 2.0 on my 2700x and 3700x systems
 
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on my boards you can change the GPU slot seperate to the M.2 slot, but theres no harm in testing it to find out if it helps.

In my case i've got a GT620 and a 750Ti, and neither will post at all unless i lock the slots to PCI-E 2.0 on my 2700x and 3700x systems
Can you help me with this settings location?
Is this:
Settigs/advanced/PCI Subsystem Settings
I have here:
Above 4G memory.Crypto Currency mining
PCI_E1 Gen Switch (can choose here gen 1 - 4)
Chipset Gen switch (can choose here gen 1 - 4)
PCI_E1 Lanes Configuration (Auto, x8+x8...)

There is interesting thing.
Changing gen don't work but when I start PC with tv connected, and then change cables to LCD it is working.
 

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PCI_E1 Gen Switch (can choose here gen 1 - 4)

choose 2, for this test
 
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Didn't help ( I checked chipset too)
As I mentioned above.
Whet I start PC with TV connected (HDMI - HDMI) I can disconnect TV and connect LCD, an than it works.
 

Mussels

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Honestly, thats a strange one.

Is there *any* other devices connected to display outputs at all? Just the one cable only, to the graphics card (not the motherboards connectors)
 
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Honestly, thats a strange one.

Is there *any* other devices connected to display outputs at all? Just the one cable only, to the graphics card (not the motherboards connectors)
I tried both ways
One cable and two cables (LCT + TV)
 

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Benchmark Scores Nyooom.
The only real thing that's changed between those platforms is UEFI support - which can make some GPU's not give a signal until windows.

This oddity of DVI not working while HDMI does is pretty bizarre. Can you show pics of the adaptors you're using? i might get a clue there
 
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20201202_120240.jpg
 
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Can you help me with this settings location?
Is this:
Settigs/advanced/PCI Subsystem Settings
I have here:
Above 4G memory.Crypto Currency mining
PCI_E1 Gen Switch (can choose here gen 1 - 4)
Chipset Gen switch (can choose here gen 1 - 4)
PCI_E1 Lanes Configuration (Auto, x8+x8...)

There is interesting thing.
Changing gen don't work but when I start PC with tv connected, and then change cables to LCD it is working.
is your previous build still available? can you test the DVI port on your previous mobo to see if it still works? I'm asking this so we can be sure that the problem is not on the port itself, but some configuration in your new mobo BIOS

Man... that's some high quality photo... how...
 

Mussels

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That's a single link DVI cable, but you're dealing with a 1600x900 monitor so that should work totally fine.
I was half expecting some dodgy crap from wish held together with duct tape.

This is either something broken - the cable, or the DVI port .... ooooor you've ran into a genuine, rare really weird bug
 
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is your previous build still available? can you test the DVI port on your previous mobo to see if it still works? I'm asking this so we can be sure that the problem is not on the port itself, but some configuration in your new mobo BIOS


Man... that's some high quality photo... how...
Previous build can be problematic but I have an idea that can help with tests but... after work :)
 
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The only real thing that's changed between those platforms is UEFI support - which can make some GPU's not give a signal until windows.

This oddity of DVI not working while HDMI does is pretty bizarre. Can you show pics of the adaptors you're using? i might get a clue there
maybe if he changes the video support to legacy it'll work?
 

Mussels

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Benchmark Scores Nyooom.
maybe if he changes the video support to legacy it'll work?
I dont think the modern boards support that in the same way the old mobos did - the CSM is for booting from MBR drives, GPU's have to be UEFI to work properly.


Hell maybe this is that 1 in a million time where updating the GPU BIOS is a good idea?
 
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Previous build can be problematic but I have an idea that can help with tests but... after work :)
We just need to test your gpu on other Mobo, and preferably the same monitor too.
It is highly unlikely, but, your dvi port could have been damaged in the process (I really cannot see how, but there is a chance) and, maybe even the monitor port can be damaged.
if both DVI ports are ok, try installing windows on a drive and then connecting both the HDMI and DVI, to see if the windows recognizes two displays.

I dont think the modern boards support that in the same way the old mobos did - the CSM is for booting from MBR drives, GPU's have to be UEFI to work properly.


Hell maybe this is that 1 in a million time where updating the GPU BIOS is a good idea?
Well, that i never heard of lol
 

Mussels

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Whats the exact model number of the GPU? Let's go find a Vbios update


(Oh and trust me, over the years i've seen some weeeeeeeeird compatibility issues)
 
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Whats the exact model number of the GPU? Let's go find a Vbios update


(Oh and trust me, over the years i've seen some weeeeeeeeird compatibility issues)
It's gigabyte gtx 780 oc windforce rev 2
I'm afraid that it won't be easy - finding updated bios version
 

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It's gigabyte gtx 780 oc windforce rev 2
I'm afraid that it won't be easy - finding updated bios version

I used to have one of those, should be easy actually.

Giga make it annoying where you need to use their garbage app to update, and often it gets outdated and broken.
Here's TPUs list - find one that matches your card more closely
VGA Bios Collection | TechPowerUp
One of TPU's many Bios flashing guides is here - GUIDE for Flashing BIOS of NVIDIA GPU | TechPowerUp Forums (if the latest BIOS has differing clocks to your model, you have the option of modifying the BIOS to match the clocks your card currently has to be safer)
 
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I did a test.
With defoult bios settings I set boot order to USB, HDD ...

After insertion of bootable USB, when I press enter, live CD is starting to boot and LCD is turning on. And it's on DVI - DVI connection.
So it seems that I can not go into bios with my LCD but I can install the system and problebly I will can use it.

Inconvenience - to use bios I have to connect TV to PC

I'll check GPU bios after system installation.
 
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Wow, thats reaaally weird, your gpu displays when your system boot?
Now I'm really lost.
 
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And a little update.
O took an old LCD screen. Samsung 173p plus.
It's older than my NEC p221w

It's working flawlessly over DVI (gtx 780 DVI - LCD DVI)
Everything works!

Have no idea what is going on with my NEC :(
 

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Case Fractal Design R6
Audio Device(s) Logitech G560 | Corsair Void pro RGB |Blue Yeti mic
Power Supply Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse Logitech G Pro wireless + Steelseries Prisma XL
Keyboard Razer Huntsman TE ( Sexy white keycaps)
VR HMD Oculus Rift S + Quest 2
Software Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores Nyooom.
It must be getting an incorrect signal for resolution or refresh rate, this does sound more and more like a weird bug
 
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