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Dual PSU or buy new for RTX 3060 Ti

Go to solution Solved by SupaKomputa,

550w will be enough for 3060ti. 

Its a mid end card.

So i just got most of my parts for my first PC build. When i first ordered the parts i ordered a RTX 2060, but on the release of RTX 3060 Ti, i ordered it as well, with plans to return the 2060.

Now i'm guessing that a 550W PSU is not enough to power my build, with the RTX 3060 Ti. And since my brother has a spare unopened 550W PSU i can have for free, i was wondering if a dual PSU setup is possible, or if i should just buy a larger PSU. And if so, how many watts should i get?

Parts i ordered - the RTX 2060:

PCPartPicker Part List

CPU: AMD Ryzen 7 3700X 3.6 GHz 8-Core Processor  
Motherboard: Asus ROG STRIX B550-F GAMING ATX AM4 Motherboard 
Memory: Corsair Vengeance LPX 16 GB (2 x 8 GB) DDR4-3600 CL18 Memory 
Storage: Western Digital Blue SN500 250 GB M.2-2280 NVME Solid State Drive 
Power Supply: Cooler Master MWE Gold 550 W 80+ Gold Certified Fully Modular ATX Power Supply 
Case Fan: Noctua F12 PWM 54.97 CFM 120 mm Fan
Case Fan: Corsair SP140 49.49 CFM 140 mm Fans 2-Pack 
 

PSU that my brother gave me:

Power Supply: Corsair CXM 550 W 80+ Bronze Certified Semi-modular ATX Power Supply

 

If it is of any importance the new GPU i ordered was "Gainward  GeForce RTX 3060 Ti Phoenix GS"

Ryzen 7 3700X - Asus ROG strix B550-F Gaming (Wi-Fi) - Corsair Vengeance LPX black (8x2 3600 MHz) - Western Digital SN500 250 GB - Seagate Barracuda 3 TB - Gainware GeForce RTX 3060 Ti Phoenix “GS” - Phanteks Eclipse P400A Black - Cooler Master MWE Gold 550 Watt

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Why don't you first try it out with your MWE Gold 550W, instead of doing something stupid and potentially unnecessary?

Desktop: Intel Core i9-9900K | be quiet! Dark Rock Pro 4 | ASUS Strix Z390-F | G.Skill Trident Z Neo 2x16GB 3200MHz CL14 | EVGA GeForce RTX 2070 SUPER XC Ultra | Corsair RM650x | Fractal Design Define R6

Laptop: 2018 Apple MacBook Pro 13"  --  i5-8259U | 8GB LPDDR3 | 512GB NVMe | macOS Big Sur

Peripherals: Leopold FC660C w/ Topre Silent 45g | Logitech MX Master 3 & Razer Basilisk X HyperSpeed | Beyerdynamic Custom One Pro Plus | Audio-Technica AT2020USB+

Displays: Alienware AW2521HF & BenQ BL2420PT

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550w will be enough for 3060ti. 

Its a mid end card.

Ryzen 2600 @ 4ghz | Radeon RX580 | 32gb HyperX 3200mhz | 500gb Samsung PM981a | 5 TB HDD | Corsair CX450

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1 hour ago, Timelesscow said:

Now i'm guessing that a 550W PSU is not enough to power my build, with the RTX 3060 Ti.

It's 200W GPU with 100W CPU ...

Tag or quote me so i see your reply

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  • 1 month later...

Well, in increased energy costs alone you will find that it would be inefficient to utilize two power supplies. I would just upgrade to a 750W Gold PSU and call it a day.

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Your existing 550W power supply is probably enough. I ran a 3700 and a 2080 off of a good 550W. if not, please just get a single higher-wattage PSU instead of pulling an Austin Evans on a daily driver PC. Austin's dual-PSU abomination in Scrapyard Wars only had to function long enough to run their benchmark suite and he only went that route out of desperation. 

Saika (Main PC)

Ryzen 5 5600X - ASRock X570 PG Velocita - PowerColor Red Devil Limited Edition RX 6800 XT #166 - 16GB Crucial Ballistix DDR4-3600mhz - 2xXPG SX8200 Pro 1TB NVMe

 

Akatsuki (Emulation PC)

Ryzen 5 3400G - ASRock A300 DeskMini - 8GB Crucial Ballistix Sport DDR4-2666mhz SO-DIMM - Samsung 840 500GB SSD

 

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