GPU not detected

[pleaseHelpMeThanks]

Hi, I am building my first PC. I can start it with my CPU-graphics and installed windows 10 Pro. Everything works except that my GPU isn't detected in the device-manager and I can't get an image with the output of the GPU. I don't know, what I can do at this point, so I ask here (first time I ask for help in an online-forum).

A lot of the things are bought used, but I don't think, that is the problem (the MoBo detects something in the PCIe slot). As I said, I can run windows with the monitor connected to the CPU-graphics. FYI I have internet and can install things (not a Nvidia driver, because no Nvidia GPU is detected), in case I need Apps, drivers, etc to fix the problem. The Fans of the GPU are spinning (different to other posts) and the lights are on. I am using a displayport-cable. I don't have another GPU to test it or another PC to test the GPU. Also no other monitor at the time (I am moving soon and I have my monitor there, not here). 

I don't even get a signal (not even for BIOS) when I plug the monitor into the GPU.

In the BIOS (under Advanced - System Agent - PCI Express Configuration) I see x16 detected in the first slot, but that is about it.

 

My build:

(OS: Windows 10 Pro 64 bit)

Motherboard: Asus Z490-e

CPU: Intel i9-11900K

GPU: Nvidia RTX 4070 12GB

RAM: 2x16 32GB 3200 MHz kit (Corsair Vengeance Pro)
PSU: be quiet! 12m 850W
CPU-cooler: be quiet! Dark Rock Elite

Storage: Fikwot FN955 4TB M.2 PCIe Gen4

Monitor is old, but works after I put the new NVMe into my laptop and installed the basic display-drivers (it is worse than full hd so windows had a problem with it).

 

What I've tried already:

I installed a BIOS-update (newest one, 2801 x64) with EZ-Flash and a USB stick.

In the BIOS I tried:

• I checked all the cables, turned it off and back on (while I tried my luck in the BIOS I had to reset it and update it again a few times).
• enabling iGPU Multi-Monitor
• setting the primary display to auto or the GPU
• a different Power cable for the GPU (PCIe 5.0 (both sides) as well as a 2x8 to 5.0 splitter, and I made sure, they were correctly installed at the GPU and the PSU)
• putting the GPU into a different slot
• connecting the M.2 to the second slot (is still there)
• Did all windows updates, etc. 
• uninstalled graphics-drivers
• reset BIOS

I really appreciate any help. If you need more info or pictures, please say so and I will get them. Thank you!

Edited March 17, 2024 by pleaseHelpMeThanks
added things I tried

[PowerPCFan]

1 hour ago, pleaseHelpMeThanks said:

Hi, I am building my first PC. I can start it with my CPU-graphics and installed windows 10 Pro. Everything works except that my GPU isn't detected in the device-manager and I can't get an image with the output of the GPU. I don't know, what I can do at this point, so I ask here (first time I ask for help in an online-forum).

A lot of the things are bought used, but I don't think, that is the problem (the MoBo detects something in the PCIe slot). As I said, I can run windows with the monitor connected to the CPU-graphics. FYI I have internet and can install things (not a Nvidia driver, because no Nvidia GPU is detected), in case I need Apps, drivers, etc to fix the problem. The Fans of the GPU are spinning (different to other posts) and the lights are on. I am using a displayport-cable. I don't have another GPU to test it or another PC to test the GPU. Also no other monitor at the time (I am moving soon and I have my monitor there, not here). 

I don't even get a signal (not even for BIOS) when I plug the monitor into the GPU.

In the BIOS (under Advanced - System Agent - PCI Express Configuration) I see x16 detected in the first slot, but that is about it.

 

My build:

(OS: Windows 10 Pro 64 bit)

Motherboard: Asus Z490-e

CPU: Intel i9-11900K

GPU: Nvidia RTX 4070 12GB

RAM: 2x16 32GB 3200 MHz kit (Corsair Vengeance Pro)
PSU: be quiet! 12m 850W
CPU-cooler: be quiet! Dark Rock Elite

Storage: Fikwot FN955 4TB M.2 PCIe Gen4

Monitor is old, but works after I put the new NVMe into my laptop and installed the basic display-drivers (it is worse than full hd so windows had a problem with it).

 

What I've tried already:

I installed a BIOS-update (newest one, 2801 x64) with EZ-Flash and a USB stick.

In the BIOS I tried:

• I checked all the cables, turned it off and back on (while I tried my luck in the BIOS I had to reset it and update it again a few times).
• enabling iGPU Multi-Monitor
• setting the primary display to auto or the GPU
• a different Power cable for the GPU (PCIe 5.0 (both sides) as well as a 2x8 to 5.0 splitter, and I made sure, they were correctly installed at the GPU and the PSU)
• putting the GPU into a different slot
• connecting the M.2 to the second slot (is still there)
• Did all windows updates, etc. 

I really appreciate all help. If you need more info or pictures, please say so and I will get them. Thank you!

You plugged the cable in the GPU and not the motherboard, and connected the PCIe power cables, right? I'm just checking, because a surprising amount of people forget this... 

[pleaseHelpMeThanks]

1 hour ago, PowerPCFan said:

You plugged the cable in the GPU and not the motherboard, and connected the PCIe power cables, right? I'm just checking, because a surprising amount of people forget this... 

Do you mean the DP-cable is between the monitor and the GPU and the GPU is connected to the PSU? I did that, but the monitor shows the "no signal" message. That's why I currently have the monitor connected to the Motherboard/CPU-graphic. 

[PowerPCFan]

6 hours ago, pleaseHelpMeThanks said:

Do you mean the DP-cable is between the monitor and the GPU and the GPU is connected to the PSU? I did that, but the monitor shows the "no signal" message. That's why I currently have the monitor connected to the Motherboard/CPU-graphic. 

Yes that's what I meant. Are the fans (or RGB lights if applicable) on the GPU spinning up/turning on? 

[pleaseHelpMeThanks]

1 hour ago, PowerPCFan said:

Yes that's what I meant. Are the fans (or RGB lights if applicable) on the GPU spinning up/turning on? 

Yes, the fans are spinning and the RGB lights are on.

[PowerPCFan]

4 minutes ago, pleaseHelpMeThanks said:

Yes, the fans are spinning and the RGB lights are on.

Can you try new cables or try HDMI instead? What monitor do you have? 

[pleaseHelpMeThanks]

7 minutes ago, PowerPCFan said:

Can you try new cables or try HDMI instead? What monitor do you have? 

B22w-6 by Fujitsu (only for now). It only has DP, VGA and DVI, my GPU only has DP and HDMI.

 

But the real Problem is, that the GPU is not recognized in the decice-manager. I can't even install a driver, because Nvidia says there is no Nvidia GPU. 

[PowerPCFan]

1 hour ago, pleaseHelpMeThanks said:

B22w-6 by Fujitsu (only for now). It only has DP, VGA and DVI, my GPU only has DP and HDMI.

 

But the real Problem is, that the GPU is not recognized in the decice-manager. I can't even install a driver, because Nvidia says there is no Nvidia GPU. 

Can you set 720p resolution on integrated graphics and then use your GPU? Your monitor doesn't support 1080p

[pleaseHelpMeThanks]

30 minutes ago, PowerPCFan said:

Can you set 720p resolution on integrated graphics and then use your GPU? Your monitor doesn't support 1080p

Well I can try that, but the GPU isn't even detected, I don't only get no image, the system isn't recognising that there is the 4070. 

And the BIOS doesn't even show, so a windows-setting shouldn't be able to change that.

I will update you when I have tested it.

Edit: didn't work. The PC is fired up (I hear over my headphones the mouse plugging/unplugging) but I don't have an Image with the GPU. I don't think graphics are the problem, rather than BIOS settings or so, because the GPU isn't detected.

Edited March 17, 2024 by pleaseHelpMeThanks
Tested the resolution

[PowerPCFan]

1 hour ago, pleaseHelpMeThanks said:

Well I can try that, but the GPU isn't even detected, I don't only get no image, the system isn't recognising that there is the 4070. 

And the BIOS doesn't even show, so a windows-setting shouldn't be able to change that.

I will update you when I have tested it.

Edit: didn't work. The PC is fired up (I hear over my headphones the mouse plugging/unplugging) but I don't have an Image with the GPU. I don't think graphics are the problem, rather than BIOS settings or so, because the GPU isn't detected.

You can't reset BIOS to defaults? 

[pleaseHelpMeThanks]

5 minutes ago, PowerPCFan said:

You can't reset BIOS to defaults? 

Did that multiple times, tried some of the settings (as said in my post). Default didn't work. Setting the main display (also in the BIOS) to GPU also didn't work, I just didn't have an image with the GPU and with the CPU I only got a blank screen then. 

[PowerPCFan]

22 minutes ago, pleaseHelpMeThanks said:

Did that multiple times, tried some of the settings (as said in my post). Default didn't work. Setting the main display (also in the BIOS) to GPU also didn't work, I just didn't have an image with the GPU and with the CPU I only got a blank screen then. 

I really have no idea why you aren't getting display out... seems like a motherboard or GPU issue to me

[pleaseHelpMeThanks]

1 hour ago, PowerPCFan said:

I really have no idea why you aren't getting display out... seems like a motherboard or GPU issue to me

Thanks for your ideas anyways!

The previous owner of the GPU had it working and sold it because he didn't really use it anymore.

The motherboard seems fine, because everything else works, I could update it and (in the BIOS) it is detecting a x16 device in the first slot.

I will add tests in the original Post.

 

I am very grateful for any advice, so if anybody has an Idea what the problem might be, how I could find out what the problem is, or anything else I could do, please comment! Thank you!