Question Nvidia GTX1650 Works Only After Booting System on MoBo GPU

[BundyDonaldson]

Once the PC boots into Windows 10, I can switch the HDMI cable from the MoBo HDMI port to the Nvidia GTX 1650 HDMI port and the new GPU runs great through games and stress tests but as soon as I re-boot or wake up the PC it will not post and i get intermittent single beeps every 10-15 seconds and have to shut down, switch to the MoBo GPU and re-boot just to switch back to the GTX1650. I've tried removing all Nvidia drivers and re-installing, disabling the on board graphics in device manager, switching the BIOS setting between the two options for auto detect and default, checked and dpouble checked there were no added power adapters, unplugged the HD/CD/Box Fan to limit power draw to everything else, etc that I've read on this and other forums but nobody seems to describe the exact problem I am seeing. I must be missing something easy to resolve this, hoping you all can help. Thanks

System
Windows 10 64-bit
Intel Core i5 2310 @ 2.9GHz
16GB DDR3 Ram
Dell 0GDG8Y MoBo (A10 Bios Update)
4GB NVIDIA GeForce GTX 1650 (Made by Asus)
300W Power Supply

 

[rgd1101]

test with a better psu?

 

[BundyDonaldson]

test with a better psu?

I have not, mainly because power doesn't seem to be an issue during a stress test and normal operation once up and running. Is there a significant power draw at first startup that would prevent the card from being able to load the system?