Question Upgraded seasonic 750 psu to corsair 1000w 2021 psu. should i get something else?


Jul 25, 2018
So I bought a 3080 and did not have enough PSU/GPU power cables in my
-Seasonic FOCUS Plus 750 Gold SSR-750FX 750W 80+ Gold ATX12V & EPS12V Full Modular 120mm FDB Fan Compact 140 mm Size Power Supply

so I tried to buy another from BestBuy but they did not have any so I went ahead and bought a
-Corsair RMX Series (2021), RM1000x, 1000 Watt, Gold, Fully Modular Power Supply

Was this a good upgrade or should I get something else?

I have a 2-week window to return it so while possible I would like to

Motherboard: ASUS ROG Maximus XII Hero Z490 (WiFi 6) LGA 1200 (Intel 10th Gen) ATX Gaming Motherboard, 14+2 Power Stages, DDR4 4800+, 5Gbps LAN, Intel LAN
CPU Cooler: be quiet! Dark Rock Pro 4, BK022, 250W TDP, CPU Cooler
CPU: Intel Core i9-10900K Desktop Processor 10 Cores up to 5.3 GHz Unlocked LGA1200 (Intel 400 Series Chipset) 125W
PSU:Corsair RMX Series (2021), RM1000x, 1000 Watt, Gold, Fully Modular Power Supply
RAM: Corsair Vengeance RGB Pro 32GB (2x16GB) DDR4 3200 (PC4-25600) C16 Desktop Memory - Black
GPU: 3080 ROG Strix
Case Fans: Cooler Master MasterFan MF120 Halo 3in1 Duo-Ring ARGB 3-Pin LightingFan, 24 Independently LEDS, 120mm Fan, PWM Static Pressure Fan, Absorbing Pads for Computer Case & Liquid Radiator
Case Fans #2: 2 LED fans in front of the tower as well
Case: Thermaltake View 71 TG (Tempered Glass) RGB Plus PC-Case - Black
Hard Drives: (4 HD drives), 1 SSD, 1 SSD m.2 NVMe
Last edited:


Jun 5, 2021
The RM1000x is a solid power supply. I don't see why you would need to return it. Did you run into any specific issues with the RMx? Or are you just wondering?
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Jul 25, 2018
That RMx1000 is a good quality PSU. No need to worry.

Just be careful to make sure you don't mix cables. Don't use cables from old PSU on the new one. Just use the modular cables that come with the new Corsair.
when i first tried to turn it on it wouldnt work. Realized it was because the hard drive cables did not match the ports on psu so i switched all the cables.