Does it make sense to change the power supply?

Question

Iron

Good afternoon.
This computer configuration:
1. Gigabyte Z390UD mother
2. 9900K CPU
3. DeepCool Assasin2 CPU cooling
4. 2 x 240b 480Gb SSD
5. Hard 2TB
6. 2x16 RAM
7. RTX 2080 8Gb video card
8. Zalman Z9 case 4 120mm fans + 1 140mm
Plus any periphery.
All this turns the AeroCool VX-800 800W power supply.
Friends, the question is whether it makes sense to change the power supply to 1000W and to which one, because. There is a feeling that this unit does not cope. From the vidyuhi and the processor, a huge heat dissipation under loads (the nuance of these models) coolers cope, but what happens to the power supply is not clear to me ...

Answer 1

Based on personal experience, I would not recommend using blocks from Aerocool, even if they have certificates. Bypass the KCAS series in general.
You now have a rather expensive assembly based on top-end components, while a budget PSU costs 3k. If he cracks, then only the budget Mobo will not be a pity, but if the rest gets it, then I myself will be upset out of solidarity.
Sell ​​it on the secondary market, buy something more serious and at least bronze. Well, yes, 750 watts and above. If you want to drive 9900K, then it will eat like a wild one.

Answer 2

Maybe the reason is in the room temperature, after all it is summer. And the power supply can be replaced with one of these: Seasonic, CoolerMaster, Chieftec with a certificate. 700-750 W will be enough.