Question Is my PSU Wattage enough?

[vyxon]

This is my current build:

CPU: Intel - Core i7-9700K 3.6 GHz 8-Core Processor
CPU Cooler: Corsair - H100i PRO 75 CFM Liquid CPU Cooler
Motherboard: Asus - ROG STRIX Z390-E GAMING ATX LGA1151 Motherboard
Memory: G.Skill - Trident Z Royal 16 GB (2 x 8 GB) DDR4-3200 Memory
Storage: SanDisk - SSD PLUS 240 GB 2.5" Solid State Drive
Storage: Western Digital - Black NVMe 500 GB M.2-2280 Solid State Drive
Storage: Seagate - BarraCuda 1 TB 3.5" 7200RPM Internal Hard Drive
Video Card: Asus - GeForce RTX 2080 Ti 11 GB ROG Strix Gaming OC Video Card
Case: Corsair - Obsidian 500D RGB SE ATX Mid Tower Case
+ 4 LL120 fans

Have all the components except the GPU

PC part picker quotes around 415W for the system
I have an existing 750W 80+ gold psu that i want to use.

Just want to confirm my PSU should be fine before i purchase

Cheers

 

[panathas]

Yes 750W is more than enough. You even have enough headroom for overclocking. By the way what's the model number of your PSU. It may be a gold unit and it's big enough but there are other things that a "good" quality PSU should have in order to support a high end system like yours. Additionally there are some (few) mediocre gold units out there that should never be used with high end parts.

 

[vyxon]

I have a Cooler Master MWE 750w Gold 80+

 

[panathas]

That PSU is good enough and perfectly capable of handling your new parts. You can even try some overclocking but keep in mind that its efficiency is dropping at high loads (not that it matters much) => https://gnd-tech.com/2018/11/cooler-master-mwe-gold-750-power-supply-review/

Good luck and have fun with your new build.