Question System Power Total Problem

[theisthecopy]

So I bought a HP desktop and am looking to upgrade, problem is that I can't upgrade the PSU without replacing the motherboard.
Something similar to this. https://www.hp.com/ca-en/shop/product.aspx?id=86Y14AA&opt=ABL&sel=DTP

The PSU is 400w gold, HP proprietary.
GPU - 1660 SUPER
CPU - i5-10400F
RAM - 2 Slots (24 GB)
Memory - M.2 NVME (INTEL SSDPEKNW512G8H) <0.1W
Other Overheads - 2 Fans + mouse, mic and keyboard (no LEDs, but IDK power draw), WIFI card

My question is if I can put in a 3070 Founders Edition without power problems? it has a TDP of 220 W and the i5-10400F has a TDP of 65W so would my system have enough overhead to be fine?

The reason I cannot replace the PSU without replacing the motherboard is because they have proprietary/ non-standard connectors that the motherboard needs and I don't feel confident enough ripping apart a 24 pin to make it compatible like others have done.

Other question, the 1660 SUPER is connected via a 6 + 2 pin connector, will that work for the 3070 Founder's Edition's 8 to 12 pin adapter? It seems to fit but I have not tried booting it yet.

They killed their specifications page for their motherboard, it is the BAKER REV A M11
Used to have a specifications page they decided to kill it and replace it with their forms for whatever reason.

 

[kerberos_20]

3070FE minimum recommended PSU is 650watts, hp offers for TE01 up to 500watt power supplies
~220watts is average power load
peak power for 3070FE is 380watts

on a side note, 10400F at base clock (2.9GHz) runs at 65watts, it can boost up to 134watts
TDP 65watts doesnt mean cpu will draw 65watts max, it just means your cpu cooler needs to have atleast 65watts cooling capacity, so cpu wont get throttled below 2.9GHz (base clock) during heavy load, better cooler = higher boost for longer period of time up to 134watts

 

[--SID--]

I can't upgrade the PSU without replacing the motherboard.

and the case because these 3 parts are proprietary. Regular ATX specced parts do not fit in this case.