AdviceIs my power supply undersized?Posted:

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This is my setup, according to all calculations it should only be 353 max watts i was told i might need a bigger power supply for this and plan on adding one smaller fan what is your opinion?

AMD Ryzen 7 3700X 3.6 GHz 8-Core Processor$

GIGABYTE GeForce RTX 2070 DirectX 12 GV-N2070WF2-8GD 8GB 256-Bit GDDR6

MSI - B450 TOMAHAWK MAX Motherboard-

Corsair Vengeance RGB PRO 16GB (2x8GB) DDR4 3200MHz C16 LED Desktop Memory - Black

Crucial MX500 1 TB 2.5" Solid State Drive

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

Cooler Master Hyper 212 RGB Black Edition

NZXT H510 - CA-H510B-BR - Compact ATX Mid-Tower PC Gaming Case
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Yes, 550W is perfectly sufficient.

Is this the $1500-2000 system you're planning on building from this thread?;

If so, and you haven't bought parts yet, I'd probably make a few changes.

PCPartPicker Part List

CPU: AMD Ryzen 5 3600 3.6 GHz 6-Core Processor ($172.39 @ Newegg)
Motherboard: MSI B450 TOMAHAWK MAX ATX AM4 Motherboard ($114.99 @ Best Buy)
Memory: G.Skill Ripjaws V 16 GB (2 x 8 GB) DDR4-3600 Memory ($72.99 @ Newegg)
Storage: Sabrent Rocket Q 1 TB M.2-2280 NVME Solid State Drive ($129.97 @ Amazon)
Video Card: Gigabyte GeForce RTX 2070 SUPER 8 GB WINDFORCE OC 3X Video Card ($499.99 @ Best Buy)
Case: Cooler Master MasterBox NR600 (w/o ODD) ATX Mid Tower Case ($74.98 @ Amazon)
Power Supply: EVGA SuperNOVA G3 550 W 80+ Gold Certified Fully Modular ATX Power Supply ($115.97 @ Newegg)
Monitor: VIOTEK GN32DB 32.0" 2560x1440 144 Hz Monitor ($289.99 @ Best Buy)
Total: $1471.27

I'd start around there. You can save $100 by swapping the RTX 2070 Super for an RX 5700XT, which would let you up the R5 3600 to an R7 3700x/3800x within the $1500 budget.

If you're spending more than $1500, you can keep the 2070 Super and still up the R5 3600 to an R7 3700x/3800x. You could also up the system from 16GB to 32GB RAM. If you do, I'd aim for a 2x16GB kit rather than 4x8GB, but it's up to you- just make sure it's at least 3200MHz, preferabbly 3600MHz.
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