Question gtx970 only works when gt545 is connected

[railowo]

Specs:
gpu: Asus gtx970 Mini, Nvidia gt545
RAM: 16GB DDR3
PSU: be-quiet System Power B9
CPU: i7-2600
Motherboard: Lenovo IdeaCentre K330

Since today, my gtx970 is only displaying video while the gt545 is connected even though the gt545 is not connected to the display and not even beeing used.

 

[Lutfij]

Welcome to the forums, newcomer!

Remove the GTX970 from your platform, with the GT545, use DDU and remove all GPU drivers(even non Nvidia drivers) from your platform, shut down, disconnect from the wall, remove the GT545, drop in the GTX970 and place it into the first PCIe slot and see if things change for you. Also, are you on the latest BIOS version for your prebuilt motherboard?

 

[railowo]

Welcome to the forums, newcomer!

Remove the GTX970 from your platform, with the GT545, use DDU and remove all GPU drivers(even non Nvidia drivers) from your platform, shut down, disconnect from the wall, remove the GT545, drop in the GTX970 and place it into the first PCIe slot and see if things change for you. Also, are you on the latest BIOS version for your prebuilt motherboard?

the mainboard doesnt have any video output connectors, and yes the bios is updated to the latest version even though it's from 2011-2013

 

[Lutfij]

Where did I say that the motherboard had display output connectors? The fact that the board lacks them, is why I said to have the GT545 in order to get display out so you can see what you're doing with DDU.