Gpu fans start but stop shortly afterwards

Feb 6, 2019
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Built a pc and it didn't post. Thought it was motherboard. But all fans ran fine and so did the motherboards lights. The gpu's fan ran fine too. But now after I rebuilt incase of a mistake, my gpu fans start and then stop a few seconds later. Any ideas?
 
Feb 6, 2019
17
0
10
Thank you. I also have another problem. When I turn my pc it doesn't post to my monitor. And as I said earlier all the fans work and the motherboard lights up. Any ideas why?
 
Since you picked this as solved more expert help may not read ths.
Mite be best to sart a new thread.
But list your specs in the thread
Check your bios settings for pci/e
Not onboard graphics.
Remove and reseat card.
Try another hdmi /dp cables
Check tv/monitor settings.
The more info your list and things you have tried will get more expert help.