[SOLVED] New graphics card not being detected

[twan2020]

I bought a nvidia rtx 3070 and tried to install it but only my integrated graphics showed up everywhere, it was not in my device manager and I couldn't update any drivers because geforce experience says I don't have an nvidia card.

So I read somewhere I have to uninstall old drivers and reboot with DDU. That's what I did but still it won't recognize my GPU. The fans and lights all turn on when I boot my PC and all power ports are plugged in.

My specs:

Asus Z170 PRO GAMING motherboard
I7 7700K CPU
16gb ram
750W PSU

I also updated my BIOS to the latest version available.

What can I do?

 

[Koekieezz]

plugged your monitor to gpu?

 

[twan2020]

plugged your monitor to gpu?

Yes but that doesn't have anything to do with it right? I can see my old graphics card when even when my monitor is not plugged into it. I have two screens so the other one automatically goes to the integrated graphics.

 

[Koekieezz]

you should try use 1 monitor only and plug it to gpu, maybe it'll detect it

 

[LinuxDevice]

I bought a nvidia rtx 3070 and tried to install it but only my integrated graphics showed up everywhere, it was not in my device manager and I couldn't update any drivers because geforce experience says I don't have an nvidia card.

So I read somewhere I have to uninstall old drivers and reboot with DDU. That's what I did but still it won't recognize my GPU. The fans and lights all turn on when I boot my PC and all power ports are plugged in.

My specs:

Asus Z170 PRO GAMING motherboard
I7 7700K CPU
16gb ram
750W PSU

I also updated my BIOS to the latest version available.

What can I do?

There is usually a BIOS setting for which device to use for display or to enable/disable a GPU. Go into your BIOS and find options related to video card, and if possible, set the discrete GPU as the first device.

 

[twan2020]

There is usually a BIOS setting for which device to use for display or to enable/disable a GPU. Go into your BIOS and find options related to video card, and if possible, set the discrete GPU as the first device.

I turned off IGPU monitor in my bios and selected PCI as my primary graphics but when I reboot it is still not detected, and when I check my bios again the primary graphics have changed back to integrated graphics.

Edit: And when I plug in my old graphics card my BIOS detects it. When I plug in my new one, my BIOS says there is nothing in any PCIE slot.

 

[LinuxDevice]

I turned off IGPU monitor in my bios and selected PCI as my primary graphics but when I reboot it is still not detected, and when I check my bios again the primary graphics have changed back to integrated graphics.

Edit: And when I plug in my old graphics card my BIOS detects it. When I plug in my new one, my BIOS says there is nothing in any PCIE slot.

Does your failing GPU have secondary power cable connections? If so, make sure those are correct since they are mandatory. Double check that the cable is seated (including at the PSU side if it is modular). If this is working, but the GPU still does not detect when the other GPU does in the same slot, then it seems you have a defective video card. You could try the video card in another computer which has something NVIDIA in it (the drivers will work without fussing). In reality, you could try the new video card in another computer and know it works even if you only look at the BIOS and don't even boot all the way into the o/s.

 

[twan2020]

Does your failing GPU have secondary power cable connections? If so, make sure those are correct since they are mandatory. Double check that the cable is seated (including at the PSU side if it is modular). If this is working, but the GPU still does not detect when the other GPU does in the same slot, then it seems you have a defective video card. You could try the video card in another computer which has something NVIDIA in it (the drivers will work without fussing). In reality, you could try the new video card in another computer and know it works even if you only look at the BIOS and don't even boot all the way into the o/s.

I tested in another PC and that one also didn't detect it so I sent the card back. What do you mean with: "Double check that the cable is seated (including at the PSU side if it is modular) " ? And what are secondary power cable connections? You mean the two pins that hang seperate from the 6 pins? I've tried every combination. On my first attempt to install I plugged in too many pins so I am not sure if that can damage the card?

 

[LinuxDevice]

I tested in another PC and that one also didn't detect it so I sent the card back. What do you mean with: "Double check that the cable is seated (including at the PSU side if it is modular) " ? And what are secondary power cable connections? You mean the two pins that hang seperate from the 6 pins? I've tried every combination. On my first attempt to install I plugged in too many pins so I am not sure if that can damage the card?

The edge card connectors are a bit of a miracle. The idea is simple, but making them work reliably actually takes a lot of engineering. Sometimes a failing card can simply be reseated and it will work. The same goes for those secondary power connectors. If it wants an 8-pin, then make sure all 8 pins are connected. Those secondary power connectors (6-pin or 8-pin) are rarely optional, and tend to take enough force to be uncomfortable on fingers. You may need to reseat those connectors as well, or at least verify they are truly fully seated.

I have one power supply (an amazing 1600W platinum) with modular connectors, and the cables routing through a port to the back side of the motherboard area just to keep them out of the way. Then they come back out of another hole/port in a place convenient for connecting to the video cards (a pair of Titan RTXs, which is part of why it takes such a high wattage). These higher wattage power supplies also come with heavier wires. This means that when bending cables through those ports, that it takes more strain to bend them around. I found one video card failing randomly, and traced it to that connector. It wasn't that the power supply failed, it was instead because the connector would slowly unseat to the point that a video card would become unstable. The solution was to move the modular connector to a new power supply plug so that it wasn't under torque from bending into that chassis port so close to the actual connector on the PSU.

If your PSU connection points or the connectors on the video card itself is not completely solid, then you will either get an outright failure or instability.

I'm not sure of what "too many pins" means. I can't visualize plugging 8 pins into a 6-pin socket, although I could see accidentally plugging in some incorrect pins. This could definitely damage the video card (though it is probably unlikely it was possible), e.g., if a ground pin was placed somewhere which was 12V. Simply failing to add all power pins would normally just cause the card to not work until the pins are correctly plugged in. Your test was probably valid and you were correct to return the card under warranty.