Question Do i need to upgrade my power supply?

[Noted0]

Im upgrading my pc within a budget and was going to use AM4 but last minute i have changed my mind and am going to get AM5 but this leave no room for me to buy a new power supply so i have to use my old one and on part picker it says:
"Note: The Asus TUF GAMING B650-PLUS WIFI ATX AM5 Motherboard has an additional 4-pin ATX power connector but the Corsair CX650 (2017) 650 W 80+ Bronze Certified ATX Power Supply does not have any available. This connector is used to supply additional current. While the system will likely still run without it, higher current demands or extreme overclocking may require it."

Can someone help explain what limits this will have on my pc or if it will work or not.
Also do the parts ive picked work together?

PCPartPicker Part List: https://uk.pcpartpicker.com/list/DKkzkJ

CPU: AMD Ryzen 5 7600X 4.7 GHz 6-Core Processor (£206.95 @ AWD-IT)
CPU Cooler: Cooler Master Hyper 212 Spectrum V3 71.93 CFM CPU Cooler (£64.76 @ Newegg UK)
Motherboard: Asus TUF GAMING B650-PLUS WIFI ATX AM5 Motherboard (£153.98 @ Overclockers.co.uk)
Memory: Corsair Vengeance RGB 32 GB (2 x 16 GB) DDR5-6000 CL40 Memory (£125.00 @ Amazon UK)
Storage: Western Digital Green 240 GB 2.5" Solid State Drive (Purchased For £0.00)
Storage: Crucial P5 Plus 1 TB M.2-2280 PCIe 4.0 X4 NVME Solid State Drive (£49.99 @ Amazon UK)
Storage: Seagate BarraCuda 1 TB 3.5" 7200 RPM Internal Hard Drive (Purchased For £0.00)
Video Card: Asus DUAL GeForce RTX 4070 12 GB Video Card (£613.08 @ Amazon UK)
Case: Cooler Master MasterBox MB520 ARGB ATX Mid Tower Case (Purchased For £0.00)
Power Supply: Corsair CX650 (2017) 650 W 80+ Bronze Certified ATX Power Supply (Purchased For £0.00)
Total: £1213.76
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2023-11-21 17:28 GMT+0000

 

[Ralston18]

Regarding Power Supply.

Start here:

https://www.tomshardware.com/reviews/best-psus,4229.html

Read and also apply the calculators to the proposed build.

I recommend more wattage and quality.

 

[punkncat]

I am not sure I would trust a six year old low quality level power supply on all this new equipment.

Probably will work even with only one 4X for the CPU power, but think it would be better to either adjust the build a bit to allow for a new and better quality unit, or wait until you can throw some more money on.

 

[Noted0]

Regarding Power Supply.

Start here:

https://www.tomshardware.com/reviews/best-psus,4229.html

Read and also apply the calculators to the proposed build.

I recommend more wattage and quality.

it says suggested wattage it should be 500 - 600 so it should be fine there .But what about the motherboard has an additional 4-pin ATX power connector.

 

[Ralston18]

What is "it"?

The PSU must be able to 1) provide peak wattage requirements and 2) do so in a "timely manner".

An old PSU (per @punkncat ) is not something I would trust either.

As for a new PSU: I suggest greater capacity 700-750 Watts. No harm in some extra capability just to cover peak demand requirements.

= = = =

The power connectors (4-pin ATX etc.): make the connections per the motherboard's User Guide/Manual and use only the modular cables that come with the PSU.