Question System not booting after installing new graphics card

[louis_123]

Greetings and thanks for your time!

I ran into a problem after installing a new GPU.
It doesn't boot anymore and i'm trying to find out whats the problem.

My System has following components:
CPU: Intel Xeon E3-1230
Motherboard: Lenovo IS6XM Rev 1.0
New_GPU: Sapphire Pulse RX 580 8GB
Old_GPU: Nvidia NVS 300
PSU: Mars Gaming MPB750

First i updated the Bios to the newest version (9HKT58A from 2014)
Then I switched from Legacy to UEFI-Boot.
Somehow it won't boot even then.

When the graphics card is plugged in, not even the CPU's internal graphics work.
As soon as the new graphics card is disconnected and the old graphics card is back on the motherboard, everything runs normally again.

The new gpu works on another system, so the gpu itself should be functional.

Perhaps you have an idea what the problem could be, because i'm stuck right now. Don't hesitate on requesting more info to diagnose the cause.

Thanks!

 

[popatim]

Probably a gpu vbios issue, it was common with the rx580's

 

[louis_123]

Ok, that seems like a tricky situation because i don't have display output with my internal graphics card when the new gpu is plugged in. It is therefore a challenge to update or edit the vbios.