before you needlessly upgrade your PSU you should check a few things first. A 650 Watt High Quality PSU should have enough power to boot your computer up unless the PSU is completely defective and not outputting any power.
You mentioned your Motherboard's "WHITE" Trouble LED was lit. This indicates you have problems with your RTX 2070 GPU Card. Make sure you have all the GPU Power connectors connected to the GPU card from the PSU, if applicable and installed in the proper PCIex16 slot.
From your Manual concerning Q-Code 68:
and concerning Q-Code OD:
Make sure all your Power connectors to the Motherboard are connected including both CPU Power connectors:
Do you hear more than one beep when your power up the computer?
You can always test the PSU power output by using a Mutimeter on one of the 12vdc plugs after powering on. If it reads 11.4 VDC or higher your PSU is outputting the proper amount of power to the Motherboard.
Good luck!
By the way, PCParts doesn't manufacture any parts. They just sell them. If they suggest a PSU it is your responsibility to see if it is a good recommendation or not.
According to PSU website, the RTX 2070 requires a total system PSU of 500 watts plus your Ryzen has a TDP wattage of 180 Watts. So it might be wise to upgrade. But, in my personal opinion, your current PSU of 650 Watts should be sufficient in powering up your computer since I doubt your RTX and Ryzen are consuming maximum power at POST.
