Can I put a GTX 780 in an HP Pavilion 500

[EpsoMed]

I am trying to install an MSI  GTX 780 Gaming graphics card in an HP Pavilion 500.  I have installed a Corsair CX650 power supply which should be enough for the card however when I connect the card to the mothboard I get no video signal at all from either the card or the motherboard.  If I unplug the card form the motherboard the video works fine from the motherboards VGA.

The motherboard is a IPM87-MP.  On system information it says the BIOS version is 80.07, 05/09/2013 and the HP support assistant says there are no new BIOS updates available.

It is simply not compatible or is there something I can do to get it working.

Thanks in advance for any insight!

Other system info:

Windows 10 Home (10.0.19042 Build 19042)

Model 500-210ea

Processor i3-4130 @ 3.4Ghz

8GB RAM

[Prométhée · Accepted solution]

Hello
The graphics card should be compatible
If your power supply is sufficient, it may be a concern of the boot security
Or your card has a problem
What is mentioned is not quite the same symptom, but check this:

Computer Does not Start After Installing a Video Card (Windows 10, 😎

• HP Pavilion 500-210ea Desktop PC Product Specifications
•  Motherboard Specifications, (Memphis-S)

[EpsoMed]

Hi, thanks for your reply, I'll try disabling secure boot and report back!

[EpsoMed]

It worked!  I just disabled secure boot and enabled legacy boot and restarted with the GPU connected and it's working fine.

Thanks so much for your help!

[Prométhée]

Merry Christmas @EpsoMed 

[EpsoMed]

Thanks Promethee Merry Christmas to you too!